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Toxicological information

Skin irritation / corrosion

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From March 09, 2016 to April 26, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
5-({4-chloro-6-[ethyl(phenyl)amino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-[(1-sulfo-2-naphthyl)diazenyl]naphthalene-2,7-disulfonic acid, lithium sodium salts
EC Number:
942-803-7
Molecular formula:
Not applicable; this UVCB substance contains: C31H21ClN7O10S3.xLi.yNa, (x + y) = 3; 0 < (x,y) < 3 with 804.0 < MW < 852.1 g/mol (UVCB substance), C31H22N7O11S3.xLi.yNa, (x + y) = 3; 0 < (x,y) < 3 with 785.5 < MW < 833.7 g/mol (UVCB substnace), and traces of NaCl and Na2SO4.
IUPAC Name:
5-({4-chloro-6-[ethyl(phenyl)amino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-[(1-sulfo-2-naphthyl)diazenyl]naphthalene-2,7-disulfonic acid, lithium sodium salts
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
- Source: the animal health research institute, council of agriculture, executive yuan.
- Age at study initiation: approximately 3 to 4 months
- Weight at study initiation: 2646 to 3014 g
- Housing: individually in a stainless steel wire mesh cage
- Water: ad libitum
- Acclimation period: at least 5 days
- Temperature (°C): 21 ± 2 °C
- Humidity (%): 50 ± 20%
- Photoperiod: 12hrs dark / 12hrs light

Test system

Preparation of test site:
shaved
Vehicle:
water
Controls:
yes, concurrent vehicle
Amount / concentration applied:
- Amount(s) applied (volume or weight with unit): 0.5 g test article was moistened with 0.5 mL water for injection
Duration of treatment / exposure:
4-4.5 hours
Observation period:
1, 24, 48, 72 hours
Number of animals:
Three
Details on study design:
- Area of exposure: left dorsal area
- Washing (if done): with lukewarm water

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
primary dermal irritation index (PDII)
Score:
0
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Time point:
24/48/72 h
Score:
0
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Time point:
24/48/72 h
Score:
0
Remarks on result:
no indication of irritation

Any other information on results incl. tables

Table 1. Individual Body Weights and Clinical Observations Table 1. Individual Body Weights and Clinical Observations

Animal ID

Body weight (g)

Body weight change (g)

Clinical observation

D1

D4

D4-D1

1

2646

2769

123

Normal

2

2786

2853

67

Normal

3

3014

3046

32

Normal

Table 2. Individual Scores and Total Scores for Skin Irritation During 72 hours

Animal ID

1

2

3

Score on each observation point (hour)

1

24

48

72

1

24

48

72

1

24

48

72

Control site

Erythema

0

0

0

0

0

0

0

0

0

0

0

0

Edema

0

0

0

0

0

0

0

0

0

0

0

0

Total irritation score for vehicle*

0

0

0

Test site

Erythema

0

0

0

0

0

0

0

0

0

0

0

0

Edema

0

0

0

0

0

0

0

0

0

0

0

0

Total irritation score for vehicle*

0

0

0

PII**

0

* The sum of scores at 24, 48 and 72 hours.

** (Total irritation score for test article-Total irritation score for vehicle)/9

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
According to OECD 404 test method and Draize Dermal Classification System, the PII for CJ306 in intact skin was 0 and CJ306 was categorized as non-irritant. Therefore, CJ306 was not met classification on GHS criteria.
Executive summary:

This test using the procedures outlined in the QPS Taiwan Study Plan for T65315016-IR which is based on the SOP for the OECD 404 (CTPS-TE00440) and OECD 404 (OECD, 2015). The sites were grades for erythema and edema at 1, 24, 48 and 72 hours after the patches removal.No clinical signs of toxicity were found. Body weight changes were within the normal range in all animals. All scores of erythema and edema were 0 during 72 hours after patch removal. The Primary Irritation Index for CJ306 was calculated to be 0. On the basis of the test results given above and according to Draize Dermal Classification System, the response of CJ306 was categorized as non-irritant.

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