74705-43-4Relevant articles and documents
The Flavonoids of Combretum quadrangulare: Crystal Structures of the Polymorphic Forms of 5-Hydroxy-2-(4'-hydroxy-3',5'-dimethoxyphenyl)-3,7-dimethoxy-4H-1-benzopyran-4-one.
Castleden, Ian R.,Hall, Sydney R.,Nimgirawath, Surachai,Thadaniti, Somkiat,White, Allan H.
, p. 1177 - 1185 (2007/10/02)
The following substituted 2-phenyl-4H-1-benzopyran-4-ones have been isolated from the dried flowers of Combretum quadrangulare Kurz (Combretaceae): 5-hydroxy-3,3',4',5',7-pentamethoxy (combretol) (1), 3',5-dihydroxy-3,4',7-trimethoxy (ayanin) (2) and 4',5