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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
repeated dose toxicity: other route
Remarks:
other: no data
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Documentation insufficient for assessment.

Data source

Reference
Reference Type:
publication
Title:
Toxicological Evaluation of some Food Colours, Enzymes, Flavour Enhancers, Thickening Agents and Certain Food Additives
Author:
WHO
Year:
1974
Bibliographic source:
WHO Food Additives Series, 1974, No.6.

Materials and methods

Principles of method if other than guideline:
Twelve rats received subcutaneous injections of 2 ml of a 2.5 % aqueous suspension of the test substance.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
6,15-dihydroanthrazine-5,9,14,18-tetrone
EC Number:
201-375-5
EC Name:
6,15-dihydroanthrazine-5,9,14,18-tetrone
Cas Number:
81-77-6
Molecular formula:
C28H14N2O4
IUPAC Name:
6,15-dihydroanthrazine-5,9,14,18-tetrone
Details on test material:
- Name of test material (as cited in study report): Indanthrene Blue RS
No further data.
Specific details on test material used for the study:
- Name of test material (as cited in study report): Indanthrenene blue RS
No further data.

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified

Administration / exposure

Route of administration:
subcutaneous
Vehicle:
not specified
Remarks:
2.5 % in an aqueous solution
Analytical verification of doses or concentrations:
not specified
Duration of treatment / exposure:
no data
Frequency of treatment:
monthly
Doses / concentrations
Remarks:
Doses / Concentrations:
2.5%
No. of animals per sex per dose:
12
Control animals:
not specified

Results and discussion

Target system / organ toxicity

Critical effects observed:
not specified

Any other information on results incl. tables

Six rats survived for 417 - 570 days. No tumours were seen at the site of injection.

Applicant's summary and conclusion