but-1-ene [1] butene, mixed-1-and-2-isomers [2] 2-methylpropene [3] (Z)-but-2-ene [4] (E)-but-2-ene [5]
CAS 106-98-9 · C4H8
Hazard classDanger — Flammable, Gas under pressure
PictogramsFlammableGas under pressure
H-statements- H220 Extremely flammable gas
Common uses (US EPA CDR)IntermediateFuelMonomers
Synonyms1-BUTENE · But-1-ene · Ethylethylene · 1-Butylene · alpha-Butylene · Butene-1 · alpha-Butene · LY001N554L
Molecular weight56.11 g/mol
Data sourceHarmonised classification ECHA — EU CLP Annex VILegally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.
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