Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes

Endpoint summary

Description of key information

Skin irritation

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the skin irritation potential of the test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4). The studies are as mentioned below:

 

The skin irritation study of read across chemical was performed as per OECD Guideline 402 in Sprague Dawley rats and complying with the GLP procedures. During the study, the test item was applied to shorn skin of 5 male and 5 female animals at 2000 mg/kg body weight. Administration of the test item at 2000 mg/kg did not result in any skin reaction at the site of application during the study period of 14 days. Administration of the test item did not result in any signs of toxicity and mortality during the study period of 14 days.    Animals exhibited normal body weight gain through the study period of 14 days. Gross pathological examination did not reveal any abnormalities attributable to the treatment. The overall irritation score of the substance was obtained to be 0 and no erythema and edema (skin irritation) were observed at the end of 14 days observation period after patch removal. Hence, it was concluded that the test substance was non-Irritating to the skin of rats under the experimental conditions tested.

 

The above result was further supported by similar experimental study conducted for another read across chemical in Sprague Dawley rats. The study followed the same procedure as mentioned in above study. In this study, the overall irritation score of the substance was obtained to be 0 and no erythema and edema (skin irritation) were observed at the end of 14 days observation period after patch removal. Hence, it was concluded that the test substance was non-Irritating to the skin of rats under the experimental conditions tested.

 

Based on the above summarized studies for target chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) and its structurally similar read across substances,it can be concluded that the testchemical is not able to cause skin irritation and considered as not irritating. Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified”.

 

Eye irritation

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the ocular irritation potential of the test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4). The studies are as mentioned below:

 

The eye irritation potential of read across chemical was assessed by secondary source in rabbits. About 0.2 ml of a 10% aqueous solution (20 mg) or suspension of chemical was applied twice daily, five times weekly, for four weeks to the conjunctival sac of one eye of each of a group of six or more albino rabbits (40 applications). One hour after each application, the eyes were examined for evidence of staining and the irritation was scored according to Draize. The chemical caused intense coloring of the iris, lasting for 2 to 7 days. The mean Draize score 3 days after last application was 0.0 .Based on the observations and Draize scores, the test material was considered to be not irritating to rabbit eyes.

 

The above result was further supported by an eye irritation study reported by safety assessment report which was conducted on rabbits. The test material in formulation was instilled into the eyes of rabbits and observed for signs of irritation (duration not mentioned). The tested chemical in formulation did not cause any irritation to rabbit eyes. Hence, the test substance can be considered not irritating to rabbit eyes.

 

Based on the above summarized studies for target chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) and its structurally similar read across substances,it can be concluded that the testchemical is not able to cause eye irritation and considered as not irritating. Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified”.

Key value for chemical safety assessment

Skin irritation / corrosion

Link to relevant study records

Reference

Endpoint:

skin irritation: in vivo

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

experimental data of read across substances

Justification for type of information:

Data for the target chemical is summarized based on the structurally and functionally similar read across chemicals

Reason / purpose for cross-reference:

read-across source

Reason / purpose for cross-reference:

read-across source

Qualifier:

according to guideline

Guideline:

other: as mentioned below

Principles of method if other than guideline:

WoE report is based on 2 skin irritation studies as- WoE-2 and WoE-3.
Skin irritation study of test chemical was conducted on rats to assess its skin irritating effects.

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of test material : Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes
- Molecular formula : C18H11NO8S2.Al
- Molecular weight : 460.39 g/mol
- Smiles notation : O=C1c2ccccc2C(=O)C1=C1C=Cc2cc3c4cc2N{-}1.[Al]{3+}(.O{-}S3(=O)=O).O{-}S4(=O)=O
- Substance type : Organic
- Physical state : Solid

Species:

rat

Strain:

Sprague-Dawley

Details on test animals or test system and environmental conditions:

1.TEST ANIMALS
- Sex: male and female
- Source: National Institute of Biosciences, Pune.
- Age at study initiation: Young adult male and female rats aged between 6 – 9 weeks were used.
- Weight at study initiation: The weight ranges of approximately 211.4 to 246.3 grams at initiation of dosing were used.
Body weights at the start :
Male
Mean : 240.62 g (= 100 %)
Minimum : 236.8 g (- 1.59 %)
Maximum : 246.3 g (+ 2.36 %)
Total No. of animals : 5
Female
Mean : 216.02 g (= 100 %)
Minimum : 211.4 g (- 2.14 %)
Maximum : 220.6 g (+ 2.12 %)
Total No. of animals : 5
- Housing: The rats were individually housed in polycarbonate cages with paddy husk as bedding.
- Diet (e.g. ad libitum): Rodent feed supplied by the Nutrivet Life Sciences, Pune, was provided ad libitum from individual feeders.
- Water (e.g. ad libitum): Water was provided ad libitum from individual bottles attached to the cages. All water was from a local source and passed through the reverse osmosis membrane before use.
- Acclimation period: 5 days.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): Room temperature was maintained at 20.1 to 21.9 degree centigrade.
- Humidity (%): Room humidity was maintained at 55.5% to 59.2%.
- Air changes (per hr): The animal room was independently provided with at least ten to fifteen air changes per hour of 100% fresh air that had been passed through the HEPA filters.
- Photoperiod (hrs dark / hrs light): An artificial light and dark cycle of 12 hours each was provided to the room.

IN-LIFE DATES: From: To: No data

2.TEST ANIMALS
- Source: National Institute of Biosciences, Pune.
- Age at study initiation: Young adult male and female rats aged between 6 – 9 weeks were used.
- Weight at study initiation: The weight ranges of approximately 210.2 to 245.4 grams at initiation of dosing were used.
Body weights at the start :
Male
Mean : 240.40 g (= 100 %)
Minimum : 234.6 g (- 2.41 %)
Maximum : 245.4 g (+ 2.08 %)
Total No. of animals : 5
Female
Mean : 215.98 g (= 100 %)
Minimum : 210.2 g (- 2.68 %)
Maximum : 220.6 g (+ 2.14 %)
Total No. of animals : 5
- Housing: The rats were individually housed in polycarbonate cages with paddy husk as bedding.
- Diet (e.g. ad libitum): Rodent feed supplied by the Nutrivet Life Sciences, Pune, was provided ad libitum from individual feeders.
- Water (e.g. ad libitum): Water was provided ad libitum from individual bottles attached to the cages. All water was from a local source and passed through the reverse osmosis membrane before use.
- Acclimation period: 5 days.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): Room temperature was maintained at 20.1 to 21.9 degree centigrade.
- Humidity (%): Room humidity was maintained at 55.5% to 59.2%.
- Air changes (per hr): The animal room was independently provided with at least ten to fifteen air changes per hour of 100% fresh air that had been passed through the HEPA filters.
- Photoperiod (hrs dark / hrs light): An artificial light and dark cycle of 12 hours each was provided to the room.

IN-LIFE DATES: From: To: No data

Type of coverage:

occlusive

Preparation of test site:

clipped

Vehicle:

unchanged (no vehicle)

Controls:

not specified

Amount / concentration applied:

2000 mg/kg bw

Duration of treatment / exposure:

24 hrs.

Observation period:

14 days

Number of animals:

10 (5/sex).

Details on study design:

TEST SITE
- Area of exposure: Dorsal surface and sides from scapular to pelvic area.
- % coverage: Approximately 10% of the total body surface area.
- Type of wrap if used: Porous gauze dressing and non-irritating tape.

REMOVAL OF TEST SUBSTANCE
- Washing (if done): Distilled water was used to remove residual test item.

OBSERVATION TIME POINTS
(Indicate if minutes, hours or days): Observations were conducted at 10, 30, 60 minutes, 2, 4 and 6 hours on the day of dosing and once daily thereafter for 14 day.

SCORING SYSTEM: Draize Method.

Irritation parameter:

overall irritation score

Basis:

mean

Time point:

14 d

Score:

0

Reversibility:

not specified

Remarks on result:

no indication of irritation

Irritant / corrosive response data:

Overall result:
Sex : Male
Group I -
Animal treated at the dose level of 2000 mg/kg body weight did not result in any skin reaction during the study period of 14 days.

Sex : Female
Group I -
Animal treated at the dose level of 2000 mg/kg body weight did not result in any skin reaction during the study period of 14 days.

Other effects:

1. Clinical Signs of Toxicity and Mortality
Sex : Male
Group I -
Animal treated at the dose level of 2000 mg/kg body weight did not result in any signs of toxicity during the study period of 14 days. All animals survived through the study period of 14 days.

Sex : Female
Group I -
Animal treated at the dose level of 2000 mg/kg body weight did not result in any signs of toxicity during the study period of 14 days. All animals survived through the study period of 14 days.

Body Weight
Sex : Male
Group I (2000 mg/kg) - Percent body weight gain after 7 days and 14 days was found to be 8.65% and 18.38% respectively.

Sex : Female
Group I (2000 mg/kg) - Percent body weight gain after 7 days and 14 days was found to be 5.76% and 10.48% respectively.

Gross Pathological Findings
Gross pathological examination did not reveal any abnormalities in animals from 2000 mg/kg dose group.

2.Clinical Signs of Toxicity and Mortality
Sex : Male
Group I -
Animal treated at the dose level of 2000 mg/kg body weight did not result in any signs of toxicity during the study period of 14 days. All animals survived through the study period of 14 days.

Sex : Female
Group I -
Animal treated at the dose level of 2000 mg/kg body weight did not result in any signs of toxicity during the study period of 14 days. All animals survived through the study period of 14 days.

Body Weight
Sex : Male
Group I (2000 mg/kg) - Percent body weight gain after 7 days and 14 days was found to be 8.88% and 18.87% respectively.

Sex : Female
Group I (2000 mg/kg) - Percent body weight gain after 7 days and 14 days was found to be 4.29% and 9.60% respectively.

Gross Pathological Findings
Gross pathological examination did not reveal any abnormalities in animals from 2000 mg/kg dose group.

1.

Table No. I

 

Summary of Evaluation of Dermal Reaction

Test System : Sprague Dawley Rat

Sex : Male 

Group  No.	Dose mg/kg	Dermal Reaction	Total Number of Animals	Animal Nos.	Period of signs in days  From - to	Mortality
I	2000	No dermal reaction observed	5	1 - 5	Day 0 - Day 14	0/5

 

 

Sex : Female

 

Group  No.	Dose mg/kg	Dermal Reaction	Total Number of Animals	Animal Nos.	Period of signs in days  From - to	Mortality
I	2000	No dermal reaction observed	5	6 - 10	Day 0 - Day 14	0/5

 

 

Table No. II

 

Individual Animal - Evaluation of Dermal Reaction

Test System : Sprague Dawley Rat

Sex : Male  

Group : I

Dose  : 2000 mg/kg body weight

Animal	Dermal	D A Y S
No.	Reaction	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14
1	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
2	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
3	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
4	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
5	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

 

Sex : Female  

Group : I

Dose  : 2000 mg/kg body weight

Animal	Dermal	D A Y S
No.	Reaction	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14
6	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
7	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
8	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
9	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
10	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

2.

Table No. I

 

Summary of Evaluation of Dermal Reaction

Test System : Sprague Dawley Rat

Sex : Male 

Group  No.	Dose mg/kg	Dermal Reaction	Total Number of Animals	Animal Nos.	Period of signs in days  From - to	Mortality
I	2000	No dermal reaction observed	5	1 - 5	Day 0 - Day 14	0/5

 

 

Sex : Female

 

Group  No.	Dose mg/kg	Dermal Reaction	Total Number of Animals	Animal Nos.	Period of signs in days  From - to	Mortality
I	2000	No dermal reaction observed	5	6 - 10	Day 0 - Day 14	0/5

 

 

TableNo. II

 

Individual Animal - Evaluation of Dermal Reaction

Test System : Sprague Dawley Rat

Sex : Male  

Group : I

Dose  : 2000 mg/kg body weight

Animal	Dermal	D A Y S
No.	Reaction	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14
1	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
2	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
3	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
4	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
5	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

 

Sex : Female  

Group : I

Dose  : 2000 mg/kg body weight

Animal	Dermal	D A Y S
No.	Reaction	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14
6	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
7	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
8	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
9	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
10	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

2.

Table No. I

 

Summary of Evaluation of Dermal Reaction

Test System : Sprague Dawley Rat

Sex : Male 

Group  No.	Dose mg/kg	Dermal Reaction	Total Number of Animals	Animal Nos.	Period of signs in days  From - to	Mortality
I	2000	No dermal reaction observed	5	1 - 5	Day 0 - Day 14	0/5

 

 

Sex : Female

 

Group  No.	Dose mg/kg	Dermal Reaction	Total Number of Animals	Animal Nos.	Period of signs in days  From - to	Mortality
I	2000	No dermal reaction observed	5	6 - 10	Day 0 - Day 14	0/5

 

 Table No. II

 

Individual Animal - Evaluation of Dermal Reaction

Test System : Sprague Dawley Rat

Sex : Male  

Group : I

Dose  : 2000 mg/kg body weight

Animal	Dermal	D A Y S
No.	Reaction	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14
1	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
2	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
3	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
4	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
5	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

 

 

 

Sex : Female  

Group : I

Dose  : 2000 mg/kg body weight

Animal	Dermal	D A Y S
No.	Reaction	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14
6	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
7	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
8	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
9	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
10	Erythema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	Oedema	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Interpretation of results:

other: Not irritating

Conclusions:

The test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) was considered to be not irritating to the rats' skin.

Executive summary:

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the skin irritation potential of the test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4). The studies are as mentioned below:

 

The skin irritation study of read across chemical was performed as per OECD Guideline 402 in Sprague Dawley rats and complying with the GLP procedures. During the study, the test item was applied to shorn skin of 5 male and 5 female animals at 2000 mg/kg body weight. Administration of the test item at 2000 mg/kg did not result in any skin reaction at the site of application during the study period of 14 days. Administration of the test item did not result in any signs of toxicity and mortality during the study period of 14 days.    Animals exhibited normal body weight gain through the study period of 14 days. Gross pathological examination did not reveal any abnormalities attributable to the treatment. The overall irritation score of the substance was obtained to be 0 and no erythema and edema (skin irritation) were observed at the end of 14 days observation period after patch removal. Hence, it was concluded that the test substance was non-Irritating to the skin of rats under the experimental conditions tested.

 

The above result was further supported by similar experimental study conducted for another read across chemical in Sprague Dawley rats. The study followed the same procedure as mentioned in above study. In this study, the overall irritation score of the substance was obtained to be 0 and no erythema and edema (skin irritation) were observed at the end of 14 days observation period after patch removal. Hence, it was concluded that the test substance was non-Irritating to the skin of rats under the experimental conditions tested.

 

Based on the above summarized studies for target chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) and its structurally similar read across substances,it can be concluded that the testchemical is not able to cause skin irritation and considered as not irritating. Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed (not irritating)

Eye irritation

Link to relevant study records

Reference

Endpoint:

eye irritation: in vivo

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

experimental data of read across substances

Justification for type of information:

Data for the target chemical is summarized based on the structurally and functionally similar read across chemicals

Reason / purpose for cross-reference:

read-across source

Reason / purpose for cross-reference:

read-across source

Qualifier:

according to guideline

Guideline:

other: as mentioned below

Principles of method if other than guideline:

WoE report is based on 2 skin irritation studies as- WoE-2 and WoE-3.
Eye irritation study of test chemical was conducted on rabbits to assess its eye irritating effects.

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of test material : Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes
- Molecular formula : C18H11NO8S2.Al
- Molecular weight : 460.39 g/mol
- Smiles notation : O=C1c2ccccc2C(=O)C1=C1C=Cc2cc3c4cc2N{-}1.[Al]{3+}(.O{-}S3(=O)=O).O{-}S4(=O)=O
- Substance type : Organic
- Physical state : Solid

Species:

rabbit

Strain:

not specified

Details on test animals or tissues and environmental conditions:

not specified

Vehicle:

other: 1.water

Controls:

not specified

Amount / concentration applied:

1.0.2 ml of a 10% aqueous solution (20 mg)
2.5% in formulation

Duration of treatment / exposure:

1.test material was applied twice daily, five times weekly
2.No data available

Observation period (in vivo):

1.four weeks
2.No data available

Number of animals or in vitro replicates:

1.six or more albino rabbits
2.no data available

Irritation parameter:

overall irritation score

Basis:

mean

Time point:

other: 20 d

Score:

0

Max. score:

6

Reversibility:

not specified

Remarks on result:

no indication of irritation

Irritation parameter:

overall irritation score

Basis:

mean

Time point:

other: No data available

Reversibility:

not specified

Remarks on result:

no indication of irritation

Irritant / corrosive response data:

1.The test material caused intense colouring of the iris, lasting for 2 to 7 days
2.No eye irritation was observed in treated rabbits.

1.

	Before 1 application on day:				3 days after last application	1st hour after 1st application on day 5
Irritation score	2	5	10	20	0	2
	0	0	0	0

2. No data available

Interpretation of results:

other: not irritating

Conclusions:

The test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) was considered to be not irritating to the eyes of rabbits.

Executive summary:

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the ocular irritation potential of the test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4). The studies are as mentioned below:

 

The eye irritation potential of read across chemical was assessed by secondary source in rabbits. About 0.2 ml of a 10% aqueous solution (20 mg) or suspension of chemical was applied twice daily, five times weekly, for four weeks to the conjunctival sac of one eye of each of a group of six or more albino rabbits (40 applications). One hour after each application, the eyes were examined for evidence of staining and the irritation was scored according to Draize. The chemical caused intense coloring of the iris, lasting for 2 to 7 days. The mean Draize score 3 days after last application was 0.0 .Based on the observations and Draize scores, the test material was considered to be not irritating to rabbit eyes.

 

The above result was further supported by an eye irritation study reported by safety assessment report which was conducted on rabbits. The test material in formulation was instilled into the eyes of rabbits and observed for signs of irritation (duration not mentioned). The tested chemical in formulation did not cause any irritation to rabbit eyes. Hence, the test substance can be considered not irritating to rabbit eyes.

 

Based on the above summarized studies for target chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) and its structurally similar read across substances,it can be concluded that the testchemical is not able to cause eye irritation and considered as not irritating. Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed (not irritating)

Respiratory irritation

Endpoint conclusion

Endpoint conclusion:

no study available

Additional information

Skin irritation

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the skin irritation potential of the test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4). The studies are as mentioned below:

 

The skin irritation study of read across chemical was performed as per OECD Guideline 402 in Sprague Dawley rats and complying with the GLP procedures. During the study, the test item was applied to shorn skin of 5 male and 5 female animals at 2000 mg/kg body weight. Administration of the test item at 2000 mg/kg did not result in any skin reaction at the site of application during the study period of 14 days. Administration of the test item did not result in any signs of toxicity and mortality during the study period of 14 days.    Animals exhibited normal body weight gain through the study period of 14 days. Gross pathological examination did not reveal any abnormalities attributable to the treatment. The overall irritation score of the substance was obtained to be 0 and no erythema and edema (skin irritation) were observed at the end of 14 days observation period after patch removal. Hence, it was concluded that the test substance was non-Irritating to the skin of rats under the experimental conditions tested.

 

The above result was further supported by similar experimental study conducted for another read across chemical in Sprague Dawley rats. The study followed the same procedure as mentioned in above study. In this study, the overall irritation score of the substance was obtained to be 0 and no erythema and edema (skin irritation) were observed at the end of 14 days observation period after patch removal. Hence, it was concluded that the test substance was non-Irritating to the skin of rats under the experimental conditions tested.

 

Based on the above summarized studies for target chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) and its structurally similar read across substances,it can be concluded that the testchemical is not able to cause skin irritation and considered as not irritating. Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified”.

 

Eye irritation

Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the ocular irritation potential of the test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4). The studies are as mentioned below:

 

The eye irritation potential of read across chemical was assessed by secondary source in rabbits. About 0.2 ml of a 10% aqueous solution (20 mg) or suspension of chemical was applied twice daily, five times weekly, for four weeks to the conjunctival sac of one eye of each of a group of six or more albino rabbits (40 applications). One hour after each application, the eyes were examined for evidence of staining and the irritation was scored according to Draize. The chemical caused intense coloring of the iris, lasting for 2 to 7 days. The mean Draize score 3 days after last application was 0.0 .Based on the observations and Draize scores, the test material was considered to be not irritating to rabbit eyes.

 

The above result was further supported by an eye irritation study reported by safety assessment report which was conducted on rabbits. The test material in formulation was instilled into the eyes of rabbits and observed for signs of irritation (duration not mentioned). The tested chemical in formulation did not cause any irritation to rabbit eyes. Hence, the test substance can be considered not irritating to rabbit eyes.

 

Based on the above summarized studies for target chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) and its structurally similar read across substances,it can be concluded that the testchemical is not able to cause eye irritation and considered as not irritating. Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category “Not Classified”.

Justification for classification or non-classification

The skin and eye irritation potential of test chemical Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4) and its structurally and functionally similar read across substanceswere observed in various studies. The results obtained from these studies indicate that the chemical  is unlikely to cause skin and eye irritation. Hence Aluminum, 2-(1,3-dihydro-1,3-dioxo-2H-inden-2-ylidene)-1,2-dihydro-6,7-quinolinedisulfonate complexes (CAS No: 94891-32-4)  can be classified under the category “Not Classified” for skin and eye as per CLP.