Registration Dossier
Registration Dossier
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EC number: 268-092-7 | CAS number: 68002-78-8 This substance is identified by SDA Substance Name: C16-C18 and C18 unsaturated trialkyl carboxylic acid trimethylolpropane triester and SDA Reporting Number: 11-015-00.
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 86.6% (ThCO2) after 28 d (OECD 301 B)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Two studies investigating the ready biodegradability of Fatty acids, C16-18 and C18-unsatd., triesters with trimethylolpropane (CAS 68002-78-8) are available. The key study was conducted according to OECD guideline 301 B (Bouillon, 2012). The substance was incubated under aerobic conditions with domestic activated sludge for 28 days. Based on the CO2 production of the inoculum a degradation rate of 86.6% was determined at test termination.
A comparable result was obtained by a supporting study performed in compliance with OECD Guideline 301 F (Füchtjohann, 2005). The study was conducted under aerobic conditions. The degradation of the substance was determined by measuring the O2 consumption of the inoculum (domestic activated sludge). After a study period of 28 days a degradation rate of 71% was determined.
Therefore the substance can be considered as readily biodegradable according to OECD criteria.
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