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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Skin sensitisation

Currently viewing:

Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Data is from The International Programme on Chemical Safety (IPCS)

Data source

Reference
Reference Type:
review article or handbook
Title:
AZORUBINE
Author:
The International Programme on Chemical Safety (IPCS)
Year:
2015
Bibliographic source:
Azorubine (WHO Food Additives Series 18), 06-15-15

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
Skin sensitization potential of the substance of Azorubine (Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo]naphthalenesulphonate) in guinea pigs.
GLP compliance:
not specified
Type of study:
not specified
Justification for non-LLNA method:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo]naphthalenesulphonate
EC Number:
222-657-4
EC Name:
Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo]naphthalenesulphonate
Cas Number:
3567-69-9
Molecular formula:
C20H14N2O7S2.2Na
IUPAC Name:
disodium 4-hydroxy-3-[(E)-2-(4-sulfonatonaphthalen-1-yl)diazen-1-yl]naphthalene-1-sulfonate

In vivo test system

Test animals

Species:
guinea pig
Strain:
not specified
Sex:
not specified
Details on test animals and environmental conditions:
No data

Study design: in vivo (non-LLNA)

No. of animals per dose:
No data
Details on study design:
No data
Challenge controls:
No data
Positive control substance(s):
not specified

Results and discussion

Positive control results:
No data

In vivo (non-LLNA)

Results
Reading:
1st reading
Group:
test chemical
No. with + reactions:
0
Clinical observations:
No clinical symptoms observed
Remarks on result:
no indication of skin sensitisation

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The test substance Azorubine (Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo]naphthalenesulphonate) was determined to be non-sensitising to skin of guinea-pigs.
Executive summary:

The skin irritation effect of Azorubine (Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo]naphthalenesulphonate) was tested in guinea-pigs. Azorubine was determined to be non-sensitising to skin of guinea pigs.