5,6-Dihydro-2<i>H</i>-pyran-2-one , >95.0%(GC) , 3393-45-1

CAS NO.：3393-45-1

Empirical Formula: C5H6O2

Molecular Weight: 98.1

MDL number: MFCD00010439

EINECS: 628-075-0

PRODUCT Properties

• Boiling point: 103 °C/10 mmHg (lit.)
• Density: 1.139 g/mL at 25 °C (lit.)
• refractive index: n20/D 1.483(lit.)
• Flash point: 115 °F
• storage temp.: 2-8°C
• form: clear liquid
• color: Colorless to Light orange to Yellow
• Sensitive: Moisture Sensitive
• BRN: 1610
• InChI: InChI=1S/C5H6O2/c6-5-3-1-2-4-7-5/h1,3H,2,4H2
• InChIKey: QBDAFARLDLCWAT-UHFFFAOYSA-N
• SMILES: C1(=O)OCCC=C1
• CAS DataBase Reference: 3393-45-1

Description and Uses

5,6-Dihydro-2H-pyran-2-one has been used in the preparation of:

• (1aR,5aR,5bS,6S,7S)-6,7-di-tert-butoxy-5-oxo-pyrrolidino[1,2-b]isoxazolidino[4,5-c]tetrahydropyran
• 4-(phenyl)tetrahydro-2H-pyran-2-one

Safety

• Symbol(GHS): GHS02
• Signal word: Warning
• Hazard statements: H226
• Precautionary statements: P241-P280a-P501a-P210-P233-P240-P241+P242+P243-P280-P303+P361+P353-P403+P235-P501
• Risk Statements: 10
• Safety Statements: 23-24/25
• RIDADR: UN 1224 3/PG 3
• WGK Germany: 3
• F: 10-21
• HazardClass: 3
• PackingGroup: III
• HS Code: 2932209090