Registration Dossier
Registration Dossier
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EC number: 209-957-0 | CAS number: 598-94-7
Endpoint summary
Administrative data
Description of key information
Two studies were performed to determine the ready biodegradablilty of 1,1-Dimethylurea.
The first was a Manometric Respirometry Test according to OECD 301F over a period of 28 days.The percentage biodegradation of test substance in duplicates were 0.46 % and -2.11 % (mean -0.83 %) on day 14, and 25.78 % and 34.15 % (mean 29.97 %) at the end of the test (on Day 28). The percentage biodegradation of the toxicity control and the procedure control were 40.14 % and 94.61 % respectively on day 14, and 81.65 % and 96.29 % respectively on day 28. The mean percentage biodegradation of the test substance 1,1 -dimethylurea was 29.97 % on day 28 under the current test condition.
A second study was performed in compliance with the OECD Guidelines for the Testing of Chemicals No. 301B " CO2 Evolution Test "(1992).The results showed that the cumulative percentage biodegradation of 1,1-dimethylurea within 28 days was 91.64%.The cumulative percentage biodegradation of the reference item (aniline) in activated sludge after 28 days was 87.81 %.
Additional information
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