Properties: Prisms from ethyl acetate, mp 227-230°; or mixture of prisms and needles from methanol + water, mp 224-226°. [a]25589 -38.5°; [a]25436 -87.4° (c = 0.926 in chloroform). uv max (ethanol): 222, 247, 314, 325 nm (log e 4.31, 4.60, 4.02, 4.01). Practically insol in water. Freely sol in alcohol, benzene, chloroform, slightly in ether, ethyl acetate.
Melting point: mp 227-230°; mp 224-226°
Optical Rotation: [a]25589 -38.5°; [a]25436 -87.4° (c = 0.926 in chloroform)
Absorption maximum: uv max (ethanol): 222, 247, 314, 325 nm (log e 4.31, 4.60, 4.02, 4.01)
Status: This monograph has been retired and is no longer subject to revision or update.
产品链接: 518-60-5››