Registration Dossier
Registration Dossier
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EC number: 807-159-2 | CAS number: 69701-99-1
Endpoint summary
Administrative data
Description of key information
The mean percentage biodegradation of MEDOL-10 calculated by biological oxygen demand (BOD) dissolved organic carbon concentration (DOC) and gas chromatography (GC) was 29.7, 33.1 and 100 % respectively. The percentage biodegradation by BOD and DOC were similar, while that obtained by GC resulted in a comparatively high value. The percentages of the metabolites remaining were estimated.
The remaining metabolite was identified as MEDOL-COOH (4-carboxyl-2-ethyl-2-methyl-1,3-dioxolane). This metabolite was oxidised from MEDOL_OH (4-hydroxymethyl-2-ethyl-2-methyl-1,3-dioxolane), one of the two hydrates of test item, the other being acrylic acid. Acrylic acid is readily biodegradable substance and disappear from the test solution, while MEDOL-OH and MEDOL-COOH remained.
Whilst some degradation was observed we cannot classify it as inherent therefore based on these results Medol 10 is concluded as not bidegradable.
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