Registration Dossier
Registration Dossier
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EC number: 701-135-4 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Three biodegradation tests were conducted (OECD 301B, 301F and 302B). The results of the 301D test identified that Reaction mass of 1-(2,3-epoxypropoxy)-2,2-bis ((2,3-epoxypropoxy)methyl) butane and 1-(2,3-epoxypropoxy)-2-((2,3-epoxypropoxy)methyl)-2-hydroxymethyl butane was not readily biodegradable under the conditions of the modified Sturm test.
The substance attained 8% biodegradation after 28 days and therefore cannot be considered as readily biodegradable under the strict terms and conditions of OECD Guideline No. 301F. However, in an OECD Guideline No 302B test 25% biodegradation after 28 days was attained and therefore the substance is considered to be inherently, primarily biodegradable.
In a study carried out according to OECD guideline 309, Trimethylolpropane, triglycidyl ether degraded in the surface water with estimated DT50 values of 12.6 days (at 10 µg/L) and 16.2 days (at 100 µg/L). The substance degraded to up to eight major unidentified degradates (10.4–37.0% AR). In addition, eleven minor unidentified degradates were present at low levels (≤7.3% AR). Volatile radioactivity, assumed all associated with 14CO2, accounted for a maximum of 3.4% AR.
Additional information
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