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Registration Dossier
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EC number: 202-588-6 | CAS number: 97-52-9
Acute Toxicity: dermal
Administrative data
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1991
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: full report availible, Guideline-study; secondary literature,
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
- Reference Type:
- review article or handbook
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- GLP compliance:
- not specified
- Test type:
- standard acute method
- Limit test:
- yes
Test material
- Reference substance name:
- 4-nitro-o-anisidine
- EC Number:
- 202-588-6
- EC Name:
- 4-nitro-o-anisidine
- Cas Number:
- 97-52-9
- Molecular formula:
- C7H8N2O3
- IUPAC Name:
- 2-methoxy-4-nitroaniline
- Reference substance name:
- PNOA
- IUPAC Name:
- PNOA
Constituent 1
Constituent 2
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River UK
- Age at study initiation: 7-10 weeks
- Weight at study initiation: 200 - 222 g
- Fasting period before study:
- Housing: single
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21 +/-1
- Humidity (%): 46
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/12
Administration / exposure
- Type of coverage:
- occlusive
- Vehicle:
- water
- Details on dermal exposure:
- Concentration: 88,9 % in water (suspension)
- Duration of exposure:
- 24 h
- Doses:
- 2000 mg/kg bw
- No. of animals per sex per dose:
- 5
- Control animals:
- not required
- Details on study design:
- Observation peroid: 14 days
Results and discussion
Effect levels
- Sex:
- male/female
- Dose descriptor:
- LD0
- Effect level:
- > 2 000 mg/kg bw
- Mortality:
- none
- Clinical signs:
- other: none
- Gross pathology:
- no abnormalities
Applicant's summary and conclusion
- Interpretation of results:
- practically nontoxic
- Remarks:
- Migrated information Criteria used for interpretation of results: expert judgment
- Conclusions:
- Acute dermal treatment of male and female rats with 2-mthoxy-4-nitroanilinie at a dose of 2000 mg/kg bw had no adverse effects. The LD 0 was > 2000 mg/kg bw.
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