1-bromo-4-propylbenzene

Endpoint summary

Description of key information

OECD 423: LD50 > 2000 mg/kg.

OECD 402: LD50 > 2000 mg/kg.

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records

Reference

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Jul 01, 2003 - Jul 17, 2003

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test type:

acute toxic class method

Limit test:

yes

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: F. Winkelmann, 33178 Borchen, Gemany
- Age at study initiation: 7-9 weeks
- Weight at study initiation: 170g (159g - 190g)
- Fasting period before study: 17 hours before until up to 4 hours after treatment
- Housing: separately in type III Makrolon cages
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 7 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 to 23 °C
- Humidity (%): 56 to 65 %
- Photoperiod (hrs dark / hrs light): 12 hour light - 12 hour dark regime

IN-LIFE DATES: From: day 1 To: day 15

Route of administration:

oral: gavage

Vehicle:

unchanged (no vehicle)

Details on oral exposure:

Mass concentration: 1285.8 g/L

MAXIMUM DOSE VOLUME APPLIED: 1.56 mL/kg

Doses:

2000 mg/kg bw

No. of animals per sex per dose:

@ 2000 mg/kg bw: 3 (m) / 3 (f)

Control animals:

no

Details on study design:

- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: on days 2, 4, 6, 8, 11, 13, and 15 of the experimental part.
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, gross pathology

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

All rats survived the observation period.

Clinical signs:

No signs of toxicity were seen in the 3 female and 3 male rats treated with 2000 mg/kg bw .

Body weight:

The body weight development of the rats was inconspicuous during the study.

Gross pathology:

The gross pathological examination revealed no alterations.

Interpretation of results:

GHS criteria not met

Conclusions:

Based on the result of this study, it is concluded that the test material has no acute toxic potential and that the LD50 value is higher than 2000 mg/kg after single oral administration in rats.

Executive summary:

Study design

The test material was tested for acute toxicity in rats after single oral administration of 2000 mg/kg body weight. The study was performed according to the OECD Guideline for Testing of Chemicals, No. 423 and according to Council Regulation (EC) No. 440/2008.

Results

No signs of toxicity were seen in the 3 female and the 3 male rats treated with 2000 mg/kg bw. The body weight development of the rats was inconspicuous during the study. There were no deaths during the course of the study. The gross pathological examination revealed no organ alterations.

Conclusion

Based on the result of this study, it is concluded that the test material has no acute toxic potential and that the LD50 value is higher than 2000 mg/kg bw after single oral administration in rats.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed

Dose descriptor:

discriminating dose

Value:

2 000 mg/kg bw

Quality of whole database:

Guideline study under GLP conditions

Acute toxicity: via inhalation route

Endpoint conclusion

Endpoint conclusion:

no study available

Acute toxicity: via dermal route

Link to relevant study records

Reference

Endpoint:

acute toxicity: dermal

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Sep 14 - 28, 2004

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 402 (Acute Dermal Toxicity)

Deviations:

no

GLP compliance:

yes

Test type:

standard acute method

Limit test:

yes

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: F. Winkelmann, 33178 Borchen
- Age at study initiation: 9 - 13 weeks
- Weight at study initiation: 219 g (range from 200 to 239 g).
- Fasting period before study: no
- Housing: separately in type III Makrolon cages with a shelter, placed on mobile racks
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 7 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 to 24 °C
- Humidity (%): 42 to 62 %.
- Air changes (per hr): no data
- Photoperiod (hrs dark / hrs light): 12 / 12 h

IN-LIFE DATES: From: day 1 To: day 15

Type of coverage:

semiocclusive

Vehicle:

unchanged (no vehicle)

Details on dermal exposure:

TEST SITE
- Area of exposure: 6 x 6 cm
- % coverage: 100
- Type of wrap if used: self-adhesive fabric (Fixomull stretch, Beiersdorf).

REMOVAL OF TEST SUBSTANCE
- Washing (if done): no
- Time after start of exposure:

TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 1.55 g/kg
- Concentration (if solution): 1285.6 g/L
- Constant volume or concentration used: no

Duration of exposure:

24 h

Doses:

2000 mg/kg bw

No. of animals per sex per dose:

5 (m) / 5 (f)

Control animals:

no

Details on study design:

- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: on days 2, 4, 6, 8, 11, 13, and 15 of the experimental part.
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, gross pathology

Statistics:

Standard statistical methods have been applied for data processing.

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

Male: 2000 mg/kg bw; Number of animals: 5; Number of deaths: 0
Female: 2000 mg/kg bw; Number of animals: 5; Number of deaths: 0

Clinical signs:

No signs of toxicity were detected in the rats after treatment with 2000 mg/kg bw.

Body weight:

The body weight development was inconspicuous.

Gross pathology:

The gross pathological examination revealed no alterations.

Other findings:

No signs of toxicity were detected in the rats after treatment with 2000 mg/kg bw.

Interpretation of results:

GHS criteria not met

Conclusions:

The test material can be considered to have no acute toxic potential and to have a LD50 value higher than 2000 mg/kg bw after dermal application to rats.

Executive summary:

Study design

The test material was tested for acute toxicity in rats after single dermal administration of 2000 mg/kg body weight. The study was performed according to the OECD Guideline for Testing of Chemicals, No. 402, and according to  Commission Directive 92/69EEC.

Results

No signs of toxicity were seen in the rats (5 males, 5 females) after treatment with 2000 mg/kg of the test item.
The body weight development of the rats was inconspicuous during the study.
There were no deaths during the course of the study.
The gross pathological examination revealed no alterations.

Conclusion

The test material can be considered to have no acute toxic potential and to have a LD50 value higher than 2000 mg/kg after dermal application to rats.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed

Dose descriptor:

discriminating dose

Value:

2 000 mg/kg bw

Quality of whole database:

Guideline study under GLP conditions

Justification for classification or non-classification

Based on the provided information the test item is not classified for acute toxicity after oral and dermal administration according to the EU Regulation (EC) No 1272/2008 on Classification, Labelling and Packaging of Substances and Mixtures.