CAS RN: 108-31-6

EINECS: 203-571-6

Molecular formula: C₄H₂O₃

Molecular weight: 98.05808

Appearance: Orthorhombic colorless needle-like or flaky crystals

Use: Used as raw materials for the production of 1,4-butanediol, γ-butyrolactone, tetrahydrofuran, succinic acid, unsaturated polyester resins, alkyd resins, etc., also used in medicine and pesticides

Structural formula: