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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Genetic toxicity: in vitro

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Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Study period:
2020
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2020

Materials and methods

Principles of method if other than guideline:
Expert system (knowledge-based). See further info attached and reference publication:
Gadaleta, D., Manganelli, S., Manganaro, A., Porta, N., & Benfenati, E. (2016). A knowledge-based expert rule system for predicting mutagenicity (Ames test) of aromatic amines and azo compounds. Toxicology, 370, 20-30.

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrasodium 4-amino-5-hydroxy-3,6-bis[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate
EC Number:
241-164-5
EC Name:
Tetrasodium 4-amino-5-hydroxy-3,6-bis[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate
Cas Number:
17095-24-8
Molecular formula:
C26H25N5O19S6.4Na
IUPAC Name:
tetrasodium 4-amino-5-hydroxy-3,6-bis[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)diazenyl]naphthalene-2,7-disulfonate
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
The analyzed azo dye presents one azo bonds that can have a clevage with consequent generation of amine mutagenic products (Øllgaard et al., 1998; Weber and
Adams,1995).

Results and discussion

Remarks on result:
no mutagenic potential (based on QSAR/QSPR prediction)

Any other information on results incl. tables

A compound with high degree of similarity with the target is the Navy MGI 1319, EC number 432-100- 9, that has experimental value non mutagen and is predicted by the model as non-mutagen, similarly to Reactive Black 5.

Applicant's summary and conclusion

Conclusions:
non mutagen