Registration Dossier
Registration Dossier
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EC number: 271-178-7 | CAS number: 68516-75-6
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP and OECD testing guideline compliant study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- Deviations:
- no
- GLP compliance:
- yes
- Test type:
- acute toxic class method
- Limit test:
- yes
Test material
- Reference substance name:
- N,N'-(2,5-dichloro-1,4-phenylene)bis[4-[[2-chloro-5-(trifluoromethyl)phenyl]azo]-3-hydroxynaphthalene-2-carboxamide]
- EC Number:
- 257-776-0
- EC Name:
- N,N'-(2,5-dichloro-1,4-phenylene)bis[4-[[2-chloro-5-(trifluoromethyl)phenyl]azo]-3-hydroxynaphthalene-2-carboxamide]
- Cas Number:
- 52238-92-3
- Molecular formula:
- C42H22Cl4F6N6O4
- IUPAC Name:
- N,N'-(2,5-dichloro-1,4-phenylene)bis(4-{[2-chloro-5-(trifluoromethyl)phenyl]diazenyl}-3-hydroxy-2-naphthamide)
- Test material form:
- solid: nanoform, no surface treatment
- Details on test material:
- Description: solid red
Stability of test article: stab1e; expirtion date: September 25, 1992
Stability of test article dilution: stab1e for 48 hours
Constituent 1
Test animals
- Species:
- rat
- Strain:
- other: HanIbm: WIST
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: BRL, Biological Research Laboratories Ltd., CH-4414 Füllinsdorf
- Age at study initiation: 8 weeks (males) and 10 weeks (females)
- Weight at study initiation: males: 193 - 210 g, females: 167 - 184 g
- Fasting period before study: overnight
- Housing: Groups of five
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: one week
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22
- Humidity (%): 40-70
- Air changes (per hr): 10-15
- Photoperiod (hrs dark / hrs light): 12/12
IN-LIFE DATES: October 30 to November 13, 1991
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- polyethylene glycol
- Details on oral exposure:
- VEHICLE
- Amount of vehicle (if gavage): 10 ml
MAXIMUM DOSE VOLUME APPLIED: 10 ml - Doses:
- 2000 mg/kg bw
- No. of animals per sex per dose:
- 5
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Body weight on test days 1 (pre-administration), 8 and 15. Clinical signs: Each animal was examined for changes in appearance and behaviour four times during day 1, and daily during days 2-15.
- Necropsy of survivors performed: yes
:
Results and discussion
Effect levels
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Based on:
- test mat.
- Remarks on result:
- other: no mortality occurred.
- Mortality:
- None
- Clinical signs:
- other: None
- Gross pathology:
- No findings
Applicant's summary and conclusion
- Interpretation of results:
- practically nontoxic
- Remarks:
- Migrated information
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