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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

Genetic toxicity in vitro

Description of key information

In vitro gene mutation, OECD 476, negative

in vitro bacteria test, OECD 471: predicted positive

in vitro MNT, OECD 487: negative

Genetic toxicity in vivo

Description of key information

in vivo UDS, OECD 486: negative

in vivo Comet Assay, OECD 489: TPE

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (negative)

Additional information

Justification for classification or non-classification

Classification for mutagenicity under Regulation 1272/2008 is warranted for substances which cause concern for humans owing to the possibility that they may induce heritable mutations in the germ cells of humans. The classification in Category 2 is based on:

— positive evidence obtained from experiments in mammals and/or in some cases from in vitro experiments, obtained from:

— somatic cell mutagenicity tests in vivo, in mammals; or

— other in vivo somatic cell genotoxicity tests which are supported by positive results from in vitro mutagenicity assays.

The test item is predicted positive to the traditional in vitro gene mutation study in bacteria which triggers first some potential elucidation of bacteria specific mechanisms. OECD 471 with nitro-reducatse deficient strains was performed with ifferent simialr substances containing nitro-geoups which showed a marked reduction of the mutagenic potential. However the trigger for some tests at Annex IX level is still valid. A reliable and adequate in vitro gene mutation OECD 476 and in vivo genetic toxicity test, OECD 486 UDS Assay, are available on analogue substances showing negative results. A read across from a further in vivo Comet Assay OECD 489 is proposed to completely assess and confirm the gene mutation toxicity behaviour of the substance.

Also an in vitro MNT OECD 487 is available showing negative results.

Based on the current available information, the substance is not considered mutagenic and a review of the classification will be performed once the OECD 489 results are available.