1H-2-Benzopyran-1-one

1H-2-Benzopyran-1-one Structure
CAS No.
491-31-6
Chemical Name:
1H-2-Benzopyran-1-one
Synonyms
Isocoumarin;ISOCUMARINE;2,1-benzopyrone;isochromen-1-one;1H-isochromen-1-one;3,4-Dehydro-1-isochromanone
CBNumber:
CB7875335
Molecular Formula:
C9H6O2
Molecular Weight:
146.14
MOL File:
491-31-6.mol
MSDS File:
SDS
Modify Date:
2023/5/25 18:01:18

1H-2-Benzopyran-1-one Properties

Melting point 47°C
Boiling point 286°C (estimate)
Density 1.1674 (rough estimate)
refractive index 1.5100 (estimate)
LogP 1.994 (est)
EPA Substance Registry System 1H-2-Benzopyran-1-one (491-31-6)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H319-H315-H302-H335
Precautionary statements  P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501

1H-2-Benzopyran-1-one Chemical Properties,Uses,Production

Definition

ChEBI: The simplest member of the class of isocoumarins that is 1H-isochromene which is substituted by an oxo group at position 1.

Synthesis Reference(s)

Journal of the American Chemical Society, 106, p. 5274, 1984 DOI: 10.1021/ja00330a041
Journal of Heterocyclic Chemistry, 27, p. 1419, 1990 DOI: 10.1002/jhet.5570270544
Tetrahedron Letters, 25, p. 4459, 1984 DOI: 10.1016/S0040-4039(01)81466-0

1H-2-Benzopyran-1-one Preparation Products And Raw materials

ISOCUMARINE 3,4-Dehydro-1-isochromanone isochromen-1-one 1H-isochromen-1-one Isocoumarin 2,1-benzopyrone 491-31-6 C6H4CHCHCOO