Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-534-7 | CAS number: 122-32-7
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 76.5% in 28 days (OECD 301B, Modified Sturm Test)
Key value for chemical safety assessment
Additional information
Data evaluating the biodegradation potential of 1,2,3-propanetriyl trioleate (CAS No. 122-32-7) are available. A ready biodegradability test was conducted according to OECD Guideline 301B, under GLP conditions (Coenen, 1991). Activated sludge was exposed for 28 days to the test substance (at 10 and 20 mg/L) and biodegradation was followed by measuring CO2 production in the test vessels. After 28 days, the reference substance (sodium acetate) did not fulfill the validity criterion for this test (60% biodegradation was attained only after 20 days, instead of 14 days). However, considering the extensive observed biodegradation of the test substance in both 10 and 20 mg/L replicates (76.5% in 28 days) and that 60% was biodegraded within the 10-day window, the results from this test are considered to be valid for further assessment.
Additional biodegradation data for this substance could be found in two publications. Even though details on the methodology used in these studies is not fully available and therefore, the documentation is not considered sufficient to draw conclusions, they reported biodegradation values of > 70% (Battersby et al., 1992) and 77.2% (Campo et al., 2007) for 1,2,3-propanetriyl trioleate. One more ready biodegradability study report (Bogers and Coenen, 1988) is available but relevant deficiencies in the methodology of this test lead to rate it as non-reliable (no charcoal control added in the experimental set-up, replicate values varied more than 20%, incidental temperature extremes observed). Biodegradation reached 12.8-27.7% after 28 days in this study.
Based on the available results, there is enough evidence to consider 1,2,3-propanetriyl trioleate as readily biodegradable.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
