Registration Dossier
Registration Dossier
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EC number: 931-330-1 | CAS number: 69227-24-3
Endpoint summary
Administrative data
Description of key information
Biodegradation in water
Under the study conditions, the test substance was considered to be readily biodegradable.
Biodegradation in water and sediment
In accordance with column 2 of Annex IX of the REACH regulation, testing for this end point is scientifically not necessary and does not need to be conducted since the test chemical is readily biodegradable in water.
Biodegradation in soil
In accordance with column 2 of Annex IX of the REACH regulation, testing for this end point is scientifically not necessary and does not need to be conducted since the test chemical is readily biodegradable in water.
Additional information
Biodegradation in water
A study was conducted to determine the ready biodegradability of the test substance, C8-18 and C18-unsatd. MEA, according to OECD Guideline 301B (CO2 evolution test), in compliance with GLP. A mineral medium, corresponding to 10-20 mg total organic carbon (TOC)/L, was inoculated with activated sludge (30 mg d.s./L). The test vessels were aerated by the passage of CO2-free air and incubated under aerobic conditions for 28 d. Degradation was followed by determining the CO2 produced and absorbed to sodium hydroxide via IC-measurement on Days 3, 6, 10, 14, 21 and 28 of the study. The reference substance used was sodium benzoate at a concentration of 20 mg/L organic carbon. The reference substance reached the pass levels for ready biodegradability within 3 d. The mean degradation extent of the test substance was 88.3% within 28 d after acidification (mean value of three test vessels). Under the study conditions, the test substance was considered readily biodegradable (Kronenberger-Schäfer, 2008).
A study was conducted to determine the ready biodegradability of the test substance, C8-18 and C18-unsatd. MEA, according to OECD Guideline 301B (CO2 evolution test). The test (20 mg C/L) and reference (sodium benzoate) substances were incubated with activated sludge and observed for degradation by measurement of the theoretical amount of carbon dioxide (ThCO2) over a 28 d period. The reference substance, sodium benzoate reached 10% biodegradation after Day 2 and > 60% after Day 10. It met the validity criteria established in the guideline for a reference substance. Biodegradation of the test substance on Day 28 equalled 99%. Under the study conditions, the test substance was considered to be readily biodegradable (Mead, 1997).
Biodegradation in water and sediment
In accordance with column 2 of Annex IX of the REACH regulation, testing for this end point is scientifically not necessary and does not need to be conducted since the test chemical is readily biodegradable in water.
Biodegradation in soil
In accordance with column 2 of Annex IX of the REACH regulation, testing for this end point is scientifically not necessary and does not need to be conducted since the test chemical is readily biodegradable in water.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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