Registration Dossier
Registration Dossier
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EC number: 202-571-3 | CAS number: 97-30-3
Endpoint summary
Administrative data
Description of key information
Biodegradation in water: screening tests:
- study conducted according to OECD guideline 301F, GLP, RL1, readily biodegradable
Hydrolysis:
- not necessary because the substance is readily biodegradable
Adsorption/desorption:
- no test necessary: the substance exhibits a low logKow (-2.5) and therefore adsorption is not expected.
Additional information
For the assessment of biodegradability of alpha methyl glucoside a GLP and OECD compliant study is available.
The biodegradation of the test item after 28 days of incubation in the static test was found to be 86 % (SD = 3.5 %) and 83 % (SD = 2.4 %) in the assays with 100 mg/L and 48 mg/L, respectively. The biodegradation within the 10-day-window was 72 % and 81 % in the assays with 100 mg/L and 48 mg/L, respectively. The 10-day-window started at day 2, independent from test item concentration.
The biodegradation of the item mixture in the toxicity control was found to be 71 % after 14 days of incubation. Thus, the demanded threshold value of 25 % is exceeded and the test item can be identified as non-toxic in a ready biodegradability test. The reference item sodium benzoate was degraded to 85 % within the first 14 days.
Therefore the substance was determined to be readily biodegradable in aerobic aqueous conditions.
Based on the results of the biodegradability test, a test for hydrolysis is scientifically not justified.
Due to the low partition coefficient of -2.5 adsorption is not expected, thus, a test for adsorption is scientifically not justified.
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