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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 252-036-3 | CAS number: 34451-19-9
Endpoint summary
Administrative data
Description of key information
The (Q)SAR model BIOWIN v4.10 predicts butyl-(S)-lactate to be readily biodegradable.
Additional information
As supporting information, a study report (Hanstveit, 1993) and a publication (Bowmer et al., 1998) are presented. Both sources suggest biodegradability of butyl-(S)-lactate.
Hanstveit (1993): The BOD5 of butyl S(-)lactate was 0.76 mg O2/L and the BOD20 was 1.24 mg O2/mg; the COD was 1.974 mg O2/L. These figures indicate a degradation of 39 and 63 % after 5 and 20 days, respectively.
Bowmer et al. (1998): The biodegradability of n-butyl lactate was tested using EU method C.5 and C.6. n-Butyl lactate was degraded by 57 to 69 % after 28 days and 63 % after 20 days, and by 22 to 39 % after 5 days.
However, these test guidelines are not suitable for definitively assessing ready biodegradability. Therefore, the QSAR prediction is used as the key value for chemical safety assessment.
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.
