Registration Dossier
Registration Dossier
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EC number: 219-207-4 | CAS number: 2386-87-0
Endpoint summary
Administrative data
Description of key information
Additional information
The hydrolytic half-life of Cycloaliphatic Epoxide Resin ERL-4221 was estimated by the QSAR program to be 324 days at pH 7. This value was not used due to the inability of the QSAR program to use the correct structural fragments in its calculation. On the basis of other work performed on the test substance, it was apparent that hydrolysis proceeded at a much quicker rate. The half-life is thought to be more accurately estimated by use of information from the analytical method development and water solubility studies. The half-life of Cycloaliphatic Epoxide Resin ERL-4221 was estimated to be 21,47 and 42 hours at pHs 4,7 and 9 respectively (method development) and 33 hours at pH 7 (solubility study). Half-life at environmentally relevant conditions, therefore, is likely to be in the range of circa 1-2 days.
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