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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 208-156-3 | CAS number: 513-35-9
Endpoint summary
Administrative data
Description of key information
Additional information
2-methylbut-2-ene is expected to have a low potential for adsorption based on a log Kow of 2.67. The calculated Koc is 183 based on the Sabljic et al. (1995) method as set out in the Technical Guidance Document (ECB 2003).
2-methylbut-2-ene has a Henry's Law Constant of 11145 Pa.m3/mol (OECD 2004). The result is supported by results calculated from the physico-chemical properties and data from the QSAR estimation (US EPA 2009). 2-methylbut-2-ene is expected to volatilise rapidly from water to air, with a half-life in rivers of 51 minutes and in lakes of 3.3 days (EPIWIN, US EPA 2008).
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.
