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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Administrative data

Key value for chemical safety assessment

Genetic toxicity in vitro

Description of key information

In vitro Bacterial reverse mutation assay (Ames test): the substance, 1,1,3,3-tetramethyl-2-[3-(trimethoxysilyl)propyl]guanidine, was negative with and without metabolic activation in S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102 (Eurofins, 2016). The study was conducted according to an appropriate OECD test guideline, and in compliance with GLP.

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

Additional information

Additional information from genetic toxicity in vitro:

1,1,3,3 -Tetramethyl-2-[3-(trimethoxysilyl)propyl]guanidine has been tested in a valid bacterial mutation assay, conducted according to OECD TG 471, and in compliance with GLP, using S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102. No increase in the number of revertants was observed in any of the five test strains, with and without metabolic activation, when tested up to cytotoxic concentration. Appropriate solvent, negative and positive controls were included and gave the expected results. It is concluded that the test substance is negative for mutagenicity to bacteria under the conditions of the test.

1,1,3,3-Tetramethyl-2-[3-(trimethoxysilyl)propyl]guanidine contains no structural elements which may be of concern for potential mutagenic activity. In vitro tests bacterial mutagenicity study result is negative.


Justification for classification or non-classification

Based on the available data for 1,1,3,3-tetramethyl-2-[3-(trimethoxysilyl)propyl]guanidine, no classification is required for genetic toxicity according to Regulation (EC) No. 1272/2008.