analytical standard
Empirical Formula: C4H4O
Formula Weight: 68.07
Linear Formula: C4H4O
MDL Number: MFCD00003222
Purity: ≥98.0% (GC)
Boiling Point: 32 °C/758 mmHg(lit.)
Density: 0.936 g/mL at 25 °C(lit.)
Refractive Index: n20/D 1.421(lit.); n20/D 1.421
Storage: 2-8°C
Beilstein Registry Number: 103221
RIDADR: UN 2389 3 / PGI
Signal Word: Danger
Hazard statements: H224-H302 + H332-H315-H341-H350-H373-H412
Precautionary statements: P201-P210-P273-P281-P308 + P313
Supplemental Hazard Statements: May form explosive peroxides.
Hazard Codes (Europe) : F+,T
Risk Statements (Europe): 45-12-19-20/22-38-48/22-52/53-68
Safety Statements (Europe): 53-45-61
WGK Germany: 3