2H-Pyran-2-one , ≥97.0%(GC) , 504-31-4

Synonym(s):
α-Pyrone

CAS NO.：504-31-4

Empirical Formula: C5H4O2

Molecular Weight: 96.08

MDL number: MFCD00006639

EINECS: 207-990-5

PRODUCT Properties

• Melting point: 8-9 °C
• Boiling point: 102-103 °C20 mm Hg(lit.)
• Density: 1.197 g/mL at 25 °C(lit.)
• refractive index: n20/D 1.53(lit.)
• Flash point: 94 °C
• storage temp.: 2-8°C
• form: Liquid
• color: Clear yellow to brown
• Odor: Pleasant hay-like, herbaceous-warm odor
• BRN: 1511
• InChI: InChI=1S/C5H4O2/c6-5-3-1-2-4-7-5/h1-4H
• InChIKey: ZPSJGADGUYYRKE-UHFFFAOYSA-N
• SMILES: C1(=O)OC=CC=C1
• LogP: -0.645 (est)

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302-H315-H319-H335
• Precautionary statements: P261-P301+P312-P302+P352-P304+P340-P305+P351+P338
• Safety Statements: 23-24/25
• WGK Germany: 3
• F: 8-9-23
• HS Code: 29322090