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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 478-900-1 | CAS number: 6156-18-9
Endpoint summary
Administrative data
Description of key information
Additional information
The aerobic biodegradation of 2,2 -bis(methylthio)propane has been examined through 3 studies, performed according to the OECD guidelines 301F, 301D and 302C. Under test conditions, the substance was considered as not readily biodegradable.
In addition, the hydrolysis of BMTP was evaluated according to an OECD 111 test. The test substance was considered to be stable at pH 7 and pH 9. But at pH4 and 1.2, it was found to be hydrolytically unstable. The half-lives at pH4 were respectively 133, 701, 1868 (estimation) and 5373 hours for the temperatures 50, 37, 25 and 15°C. At pH 1.2 and 37°C a half-life of 1.21h was found.
The adsorption behaviour of BMTP on soils was evaluated in a study performed in accordance with OECD testing guideline 106.
At the test conditions the adsorption coefficient Koc was found to be in the range of 538-1298 in the different soils with the direct method. Consequently the substance is considered to have a low mobility in soil.
Finally, the bioconcentration factor for BMTP was calculated to be 29 at a concentration of 0.20 mg/L (and 0 at 0.02 mg/L). The uptake and depuration rate constants, k1 and k2, were determined to be 37 and 1 for the 0.20 mg/L test concentration. Thus BMTP would not be classified as bioaccumulative according to the PBT assessment criteria.
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.
