Registration Dossier
Registration Dossier
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EC number: 247-975-0 | CAS number: 26760-64-5
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
The melting point of 2-methylbut-2-ene is -133.72°C. This value can be used as read-across for isoamylene (2-methylbutene, CAS 26760-64-5).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 139.43 K
Additional information
No information on the primary source of this data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook, Lide (2008) and so can be considered reliable and suitable for use as the key study for this endpoint. Most up to date source at the time. Earlier version of the source used by OECD SIDS (2005) for this endpoint. The melting point of 2-methylbut-2-ene is -133.72°C. Since isoamylene (2-methylbutene, CAS 26760-64-5) is a mixture of the two isomers, 2-methylbut-2-ene (CAS 513-35-9) and 2-methylbut-1-ene (CAS 563-46-2) and in the absence of any reliable data for isoamylene then 2-methylbut-2-ene is considered a suitable substance for read-across
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.
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