Properties: Yellow plates or needles from dil alc, mp 185°. uv max (abs ethanol): 267 nm. Sol in warm alcohol, benzene, chloroform; practically insol in water, ether, petr ether.
Melting point: mp 185°
Absorption maximum: uv max (abs ethanol): 267 nm
Derivative Type: Triacetate
Percent Composition: C 59.26%, H 4.56%, O 36.18%
Properties: Prisms from dil acetic acid, mp 127-128°.
Melting point: mp 127-128°
Derivative Type: 7-Glucoside
Additional Names: Iridin; 7-(glucosyloxy)-3¢,5-dihydroxy-4¢,5¢,6-trimethoxyisoflavone
Percent Composition: C 55.17%, H 5.02%, O 39.81%
Properties: Monohydrate, needles from dil alc, mp 208°. When anhydrous, mp 217°. One gram of anhydrous iridin dissolves in 500 ml water, 43 ml acetone. Sol in hot alcohol; practically insol in ether, ethyl acetate, benzene, chloroform.
Melting point: mp 208°; mp 217°
NOTE: There also is an oleoresin called iridin (Extractum Iridis) from Iris versicolor (blue flag) by extraction with 60% alc. Another substance named
iridine is a protamine from the sperm of rainbow trout: Felix, Mager, Z. Physiol. Chem.
249, 124 (1937).
产品链接: 548-76-5››