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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 306-004-1 | CAS number: 95465-89-7
Endpoint summary
Administrative data
Description of key information
Members of this category are considered to be readily biodegradable on the basis of calculated data for representative substances. The category is also expected to have low potential for bioaccumulation and adsorption to soil and sediment based on their measured log Kow range of 2.31-2.4. Structural analysis of representative substance molecules indicates that they are not expected to undergo hydrolysis in the environment due to the lack of hydrolyzable functional groups. The physico-chemical properties of but-1-ene, 2-methylpropene and butane indicate that the majority of such substances will ultimately be released to the atmosphere where it is quickly photooxidised in approximately 0.5 days, 0.75 days and 6.3 days respectively.
The category members are not expected to persist in the environment because they are predicted to degrade rapidly, have a low potential for adsorption to organic matter and have a low potential for bioaccumulation.
Additional information
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.
