491-31-6

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491-31-6 Structure

Identification	Back Directory
[Name] 1H-2-Benzopyran-1-one
[CAS] 491-31-6
[Synonyms] ISOCUMARINE Isocoumarin 2,1-benzopyrone isochromen-1-one 1H-isochromen-1-one 3,4-Dehydro-1-isochromanone
[Molecular Formula] C9H6O2
[MDL Number] MFCD08061387
[MOL File] 491-31-6.mol
[Molecular Weight] 146.14

Chemical Properties	Back Directory
[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 Data	Back Directory
[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

Hazard Information	Back Directory
[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

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