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EC number: 220-040-4
CAS number: 2612-57-9
The biodegradation of 2,4-dichloro aniline, being the hydrolysis product of 2,4-dichlorophenyl isocyanate, is 0 % after 28 days. The substance has to be considered as "Not readily biodegradable" (MITI-online, 1990).
Isocyanates are known to rapidly hydrolyse under the formation of the
corresponding amine. Thus, it is not possible to obtain a stable
concentration of 2,4-dichlorophenyl isocyanate over the whole test
duration due to its rapid hydrolysis and observed effects would be
rather caused by the transformation product (2,4-dichloro aniline) than
by the original substance itself. Concluding, results obtained through
the testing of 2,4-dichloro aniline can be used to assess the risk of
2,4-dichlorophenyl isocyanate towards aquatic organisms as well.
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