Derivative Type: Monohydrate
Properties: Clusters of needles from water, mp 235-238°. One gram dissolves in about 10 ml boiling water. At room temp the soly in water is <1%. Also sol in dil alcohol. Practically insol in abs alcohol, ether, and chloroform. Becomes anhydr at 100° in vacuo over P2O5. The anhydr compd is hygroscopic, mp 255-256°. [a]D17 +11.3° (c = 1.27).
Melting point: mp 235-238°; mp 255-256°
Optical Rotation: [a]D17 +11.3° (c = 1.27)
Derivative Type: Tetraacetylouabagenin trihydrate
Percent Composition: C 56.35%, H 7.32%, O 36.32%
Properties: Needles from 10% alcohol, mp 282-285°.
Melting point: mp 282-285°
Derivative Type: Dihydroouabagenin
Percent Composition: C 61.00%, H 8.53%, O 30.47%
Properties: Solvated crystals from methanol + ether contg 1 mol methanol, mp 261°.
Melting point: mp 261°
产品链接: 508-52-1››