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463159

2H-Pyran-2-one

Name: 2<I>H</I>-Pyran-2-one
Brand: ALDRICH

90%

Synonym(s):

α-Pyrone

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About This Item

Empirical Formula (Hill Notation):

C₅H₄O₂

CAS Number:

504-31-4

Molecular Weight:

96.08

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

24869900

EC Number:

207-990-5

Beilstein/REAXYS Number:

1511

MDL number:

MFCD00006639

Assay:

90%

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Properties

Quality Segment

200

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

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

201.2 °F - closed cup

flash_point_c

94 °C - closed cup

ppe

Eyeshields, Gloves

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