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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: only abstract available

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
4-Aminoazobenzene
Author:
Beratergremium für Altstoffe (BUA)
Year:
1998
Bibliographic source:
BUA-Stoffbericht 217. BUA der Gesellschaft dt. Chemiker, S. Hirzel Wissenschaftliche Verlagsgesellschaft, Stuttgart.
Reference Type:
study report
Title:
Unnamed
Year:
1992
Reference Type:
secondary source
Title:
IUCLID
Author:
ECB
Year:
2007
Bibliographic source:
ECB IUCLID Dataset
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 84/449/EEC p. 103
Deviations:
not specified
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
4-aminoazobenzene
EC Number:
200-453-6
EC Name:
4-aminoazobenzene
Cas Number:
60-09-3
Molecular formula:
C12H11N3
IUPAC Name:
4-[(E)-2-phenyldiazen-1-yl]aniline
Details on test material:
- Name of test material (as cited in study report): 4- Aminoazobenzene
- Analytical purity: 98.6%

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
no data

Administration / exposure

Type of coverage:
occlusive
Vehicle:
other: Cremophor EL
Details on dermal exposure:
no data
Duration of exposure:
24 hours
Doses:
2000 mg/kg b.w.
No. of animals per sex per dose:
5 female and 5 male
Control animals:
not specified
Details on study design:
- Duration of observation period following administration: no data
- Frequency of observations and weighing: no data
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, histopathology

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Mortality:
none
Clinical signs:
other: slight cyanosis in 1 male and 2 female rats (both day 3); ruffled fur in 1 male; yellow skin in all animals (day 5-13)
Gross pathology:
no pathological alterations

Applicant's summary and conclusion