Irisolone
Title: Irisolone
CAS Registry Number: 3301-68-6
CAS Name: 7-(4-Hydroxyphenyl)-9-methoxy-8H-1,3-dioxolo[4,5-g][1]benzopyran-8-one
Additional Names: "Sosan"; 4¢-hydroxy-5-methoxy-6,7-methylenedioxyisoflavone
Molecular Formula: C17H12O6
Molecular Weight: 312.27
Percent Composition: C 65.39%, H 3.87%, O 30.74%
Literature References: From rhizomes of Iris nepalensis D. Don, Iridaceae. Isoln and structure: Gopinath et al., Tetrahedron 16, 201 (1961). Synthesis: Fukui, Matsumato, Bull. Chem. Soc. Jpn. 38, 887 (1965).
Properties: Pale yellow crystals from ethyl acetate, mp 269-270°. uv max: 270 nm (log e 4.62), inflection 330 nm (log e 3.97).
Melting point: mp 269-270°
Absorption maximum: uv max: 270 nm (log e 4.62), inflection 330 nm (log e 3.97)
 
Derivative Type: Methyl ether
Molecular Formula: C18H14O6
Molecular Weight: 326.30
Percent Composition: C 66.26%, H 4.32%, O 29.42%
Properties: Plates, mp 184-185°.
Melting point: mp 184-185°
 
 
Status: This monograph has been retired and is no longer subject to revision or update.

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