MilliporeSigma
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463159

Sigma-Aldrich

2H-Pyran-2-one

90%

Synonym(s):
α-Pyrone
Empirical Formula (Hill Notation):
C5H4O2
CAS Number:
Molecular Weight:
96.08
Beilstein:
1511
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

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.)

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

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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.[1]

Packaging

1 g in glass bottle
Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Store at 2-8°C

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

Certificate of Analysis

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Certificate of Origin

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