Isocoumarin

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Isocoumarin

IUPAC name 1H-Isochromen-1-one
Other names Iso-coumarin; 1H-2-Benzopyran-1-one; 3,4-Benzo-2-pyrone
Identifiers
CAS number	491-31-6^N
PubChem	68108
ChemSpider	61416^Y
ChEBI	CHEBI:38759^N
ChEMBL	CHEMBL457811^Y
Jmol-3D images	Image 1
SMILES O=C2O\C=C/c1c2cccc1
InChI InChI=1S/C9H6O2/c10-9-8-4-2-1-3-7(8)5-6-11-9/h1-6H^Y Key: IQZZFVDIZRWADY-UHFFFAOYSA-N^Y
Properties
Molecular formula	C₉H₆O₂
Molar mass	146.14 g mol⁻¹
N (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Isocoumarin (1H-2-benzopyran-1-one; 3,4-benzo-2-pyrone) is a lactone, a type of natural organic compound.

Known natural compounds

Hydrangenol
Phyllodulcin
Thunberginol C, D, E and G
The derivative 3-acetyl-3,4-dihydro-5,6-dimethoxy-1H-2-benzopyran-1-one can be found in Huáng bǎi (Phellodendron chinense), one of the fifty fundamental herbs of traditional Chinese medicine.^[1]

↑ Cui, WS; Tian, J; Ma, ZJ; Guo, YQ; Wang, JH; Li, X (2003). "A new isocoumarin from bark of Pellodendron chinense". Natural product research 17 (6): 427–9. doi:10.1080/14786410310001617695. PMID 14577693.

v t e Types of natural phenols

Classes	Flavonoids (C6-C3-C6) and isoflavonoids Lignans ((C6-C3)₂) Flavonolignans Stilbenoids (C6-C2-C6) Diarylheptanoids (C6-C7-C6) Anthraquinones Chalconoids (C6-C3-C6) Kavalactones Naphthoquinones (C6-C4) Phenylpropanoids (C6-C3) Xanthonoids (C6-C1-C6) Coumarins and isocoumarins

See also:	Polyphenols : tannins (Hydrolyzable tannins, condensed tannins, phlorotannins)

v t e Types of isocoumarins

Aglycones	Bergenon Thunberginol A and B

Dihydroisocoumarins	Hydrangenol Mellein 6-Hydroxymellein 6-Methoxymellein Monocerin Phyllodulcin Thunberginol C, D, E and G

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