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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

1,2-Dihydro-2,2,4-trimethylquinoline, oligomers as a mixture of oligomer derivatives TMQ is insoluble in water (<1 mg/L). Therefore a study on hydrolysis is considered unnecessary in accordance with column 2 of REACH Annex VIII and scientifically unjustified according to Section 1 of REACH Annex XI. Results from controls of photolysis study (dark control), a half-life of ca. 16 hours of 1,2-Dihydro-2,2,4-trimethylquinoline, oligomers was reported. However, as only a small portion of the substance is water soluble, this result is not used for further evaluation.

Key value for chemical safety assessment

Additional information