Galangin
Title: Galangin
CAS Registry Number: 548-83-4
CAS Name: 3,5,7-Trihydroxy-2-phenyl-4H-1-benzopyran-4-one
Additional Names: 3,5,7-trihydroxyflavone; norizalpinin
Molecular Formula: C15H10O5
Molecular Weight: 270.24
Percent Composition: C 66.67%, H 3.73%, O 29.60%
Literature References: Isoln from galanga root, Alpininia officinarum, Hance and characterization: E. Jahns, Ber. 14, 2807 (1881). Prepn: T. Heap, R. Robinson, J. Chem. Soc. 129, 2336 (1926); J. J. Chavan, R. Robinson, ibid. 1933, 368. Mutagenicity studies: J. T. MacGregor, L. Jurd, Mutat. Res. 54, 297 (1978); J. P. Brown, P. S. Dietrich, ibid. 66, 223 (1979).
Properties: Yellowish needles from ethanol, mp 214-215°. Moderately sol in ethanol, ether; insol in water. Very sol in chloroform, benzene.
Melting point: mp 214-215°

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