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**Systematic name:**
2-methylbuta-1,3-dien
**Molecular formula:**
C₅H₈
**Chemical formula (condensed):**
CH₂=C(CH₃)-CH=CH₂
**Molar mass:** 68,11 g/mol
**Information:** It is a colourless liquid. Theoretically derived from isoprene group of natural substances called isoprenoids.
**Use:** From the polymerization of isoprene arises a substance very similar to natural rubber.