Safety Reference
Danger
H224Extremely flammable liquid and vapour
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
CAS 78-79-5
Methacrolein
Chemical intermediate for resin production
2-Methyl-1,3-butadiene, commonly known as isoprene, is an industrial chemical used primarily as a monomer in the production of synthetic rubbers. International health authorities have classified it as a potential human carcinogen.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for 2-Methyl-1,3-butadiene (CAS 78-79-5) is 2901.24.
2901.24
2901 24 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
2-methylbuta-1,3-diene
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