Registration Dossier
Registration Dossier
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EC number: 293-766-2 | CAS number: 91082-52-9
Endpoint summary
Administrative data
Description of key information
The two main constituents of the UVCB substance, 2,4- and 2,5-dimethylpyridine, were found to be not hydrolysable in valid and reliable studies according to OECD TG 111. Further main constituents of the UVCB substance, 4-methylpyridine and 3-methylpyridine, lack functional groups that hydrolyse under environmental conditions. Hydrolysis is not anticipated to be a relevant pathway of environmental degradation of the UVCB substance. The predicted atmospheric half-lives of the main pyridine bases contained in the substance, based on the reaction with OH radicals, are in the range from 46 to 116.5 hours, demonstrating the relative stability of these compounds in the atmosphere. Information on the photodegradation of pyridine bases in water and soil is lacking.
Additional information
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