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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Basic toxicokinetics

Currently viewing:

Administrative data

Endpoint:
basic toxicokinetics in vivo
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable publication which meets basic scientific principles

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
4-Aminoazobenzene. BUA-Stoffbericht 217
Author:
Beratergremium für Altstoffe (BUA)
Year:
1998
Bibliographic source:
BUA der Gesellschaft dt. Chemiker, S. Hirzel Wissenschaftliche Verlagsgesellschaft, Stuttgart
Reference Type:
publication
Title:
Metabolism of some dimethylaminoazobenzene derivatives
Author:
Robinson PJ, Ryan AJ, Wright SE
Year:
1964
Bibliographic source:
J Pharm Pharmacol 16: 80-2T

Materials and methods

Objective of study:
metabolism
Principles of method if other than guideline:
no data
GLP compliance:
not specified

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:
no data
Radiolabelling:
yes
Remarks:
C14-labeled 4-Aminoazobenzene

Test animals

Species:
rat
Strain:
not specified
Sex:
male/female
Details on test animals or test system and environmental conditions:
no data

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
arachis oil
Details on exposure:
no data
Duration and frequency of treatment / exposure:
no data
Doses / concentrations
Remarks:
Doses / Concentrations:
Males: 10 mg/rat Females: 10 mg/rat
No. of animals per sex per dose / concentration:
3
Control animals:
not specified
Positive control reference chemical:
no data
Details on study design:
no data
Details on dosing and sampling:
METABOLITE CHARACTERISATION STUDIES
- Tissues and body fluids sampled: urine
- Time and frequency of sampling: for 3 days
- From how many animals: (samples pooled or not): no data
- Method type(s) for identification:quantified after acid hydrolysis
Statistics:
no data

Results and discussion

Preliminary studies:
no data

Toxicokinetic / pharmacokinetic studies

Details on absorption:
no data
Details on distribution in tissues:
no data
Details on excretion:
urine

Metabolite characterisation studies

Metabolites identified:
yes
Details on metabolites:
p-phenylenediamine (CAS #: 106-50-3)
p-aminophenol (CAS #: 123-30-8)

Any other information on results incl. tables

The excretion of p-aminophenol and p-phenylenediamine was almost completed already after 24 hours. Almost 100 % of the theoretical amount of p-aminophenol were recovered, while only a total of 20- 30% of the p-phenylenediamine was recovered.

Applicant's summary and conclusion