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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Link to relevant study record(s)

Description of key information

Waiver: hydrolysis testing is not required since 3-methylpyridine has been shown to be readily biodegradable.

Key value for chemical safety assessment

Additional information

According to Regulation (EC) No.1907/2006, Annex VIII, Section, Column 2, hydrolysis testing as a function of pH does not need to be conducted if the substance is readily biodegradable. The substance has been shown to be readily biodegradable, based on read-across from 3-Methylpyridine (another substance in the chemical category), which was found to be readily biodegradable in the environment, as 70% DOC removal after 8 days was reported in the OECD Guideline 301B test conducted by Weytjens and Wils (1991). In addition, supporting studies on the substance include the results of the non-guideline study by Pandey and Sandhya (1997), which showed 96% TOC removal in 48 hours at a test substance concentration of 12.5 mg 2-methylpyridine/L; and the results of the non-guideline assay by Japan MITI (1992), which demonstrated ready biodegradability of the substance (58% biodegradation by BOD in 3 weeks and on upward trend) at a test substance concentration of 100 mg 2-methylpyridine/L.