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Key Documents

Safety Information

83193

Sigma-Aldrich

2H-Pyran-2-one

technical, ≥90% (GC)

Synonym(s):

α-Pyrone

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About This Item

Empirical Formula (Hill Notation):
C5H4O2
CAS Number:
Molecular Weight:
96.08
Beilstein:
1511
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:

grade

technical

Assay

≥90% (GC)

refractive index

n20/D 1.53 (lit.)
n20/D 1.530

bp

102-103 °C/20 mmHg (lit.)

density

1.197 g/mL at 25 °C (lit.)

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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Other Notes

Diene, M. Nakagawa, M. Tonozuka, M. Obi, M. Kiuchi, T. Hino

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

83193-BULK:
83193-1ML:
83193-5ML:


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Synthesis, 510-510 (1974)

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