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CAS 9006-04-6

CAS 9006-04-6 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 9006-04-6
CAS 9006-04-6PubChem CID 6557

Isoprene

Isoprene is a hemiterpene with the formula CH2=C(CH3)CH=CH2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurring compounds. It has a role as a plant metabolite. It is a volatile organic compound, an alkadiene and a hemiterpene. — ChEBI

IUPAC name
2-methylbuta-1,3-diene
Molecular formula
C5H8
Molecular weight
68.12 g/mol
Exact mass
68.062600255 Da
XLogP3
2.5
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

78-79-52-Methyl-1,3-butadieneIsopentadiene2-Methylbutadiene2-Methyldivinyl1,3-Butadiene, 2-methyl-beta-Methylbivinyl3-Methyl-1,3-butadiene
16 more reported names
0A62964IBUNSC-9237CHEBI:35194NSC9237Methyl bivinylRefChem:5919201-143-3NATURAL RUBBERisoprenoisoterpeneIsoprenRubber, natural.beta.-MethylbivinylCH2=C(CH3)CH=CH2NSC 9237Isoprene (Stabilized with TBC)
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 9006-04-6

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No records found for this CAS number.

How CAS 9006-04-6 is used on this site

CAS 9006-04-6 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 9006-04-6 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.