463159

2H-Pyran-2-one

90%

• Synonym(s): α-Pyrone
• Empirical Formula (Hill Notation): C₅H₄O₂
• CAS Number: 504-31-4
• Molecular Weight: 96.08
• Beilstein: 1511
• EC Number: 207-990-5
• MDL number: MFCD00006639
• UNSPSC Code: 12352100
• PubChem Substance ID: 24869900
• NACRES: NA.22

Properties

• Assay: 90%
• refractive index: n20/D 1.53 (lit.)
• bp: 102-103 °C/20 mmHg (lit.)
• density: 1.197 g/mL at 25 °C (lit.)
• functional group: ester
• storage temp.: 2-8°C
• SMILES string: O=C1OC=CC=C1
• InChI: 1S/C5H4O2/c6-5-3-1-2-4-7-5/h1-4H
• InChI key: ZPSJGADGUYYRKE-UHFFFAOYSA-N

Description

General description

2H-Pyran-2-one (a-Pyrone) is a heterocyclic building block. Photochemistry of 2H-pyran-2-one has been investigated by laser flash photolysis with infrared detection. Ketene and a bicyclic lactone were obtained as major photoproducts.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Store at 2-8°C

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): 201.2 °F - closed cup
• Flash Point(C): 94 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves