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EC number: 295-405-4
CAS number: 92045-23-3
A complex combination of hydrocarbons produced by the distillation of the products of a steam cracking process. It consists predominantly of hydrocarbons having a carbon number of C4, predominantly 1-butene and 2-butene, containing also butane and isobutene and boiling in the range of approximately minus 12°C to 5°C (10.4°F to 41°F).
According to Annex XI to REACH the testing in accordance Annex
VIII to X may be omitted based on the exposure scenario(s) developed in
the Chemical Safety Report.
The members of this category are gases at standard temperature and
pressure and will predominantly partition to the atmosphere, therefore
direct and indirect exposure of the soil compartment is unlikely.
Furthermore, the members of this category are not PBT and the outcome of
the chemical safety assessment does not indicate the need for further
testing. As such, this end-point has been waived as no further data is
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.
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