Nomenclature
CAS number: 53762-90-6
C
42H
68O
14; mol wt 796.98.
C 63.30%, H 8.60%, O 28.11%.
Description and references
Triterpene glycoside monohydrate from tubers
of Gratiola officinalis L., Scrophulariaceae: Retzlaff, Arch. Pharm. 240, 561 (1902); Tschesche et al., Ann. 674, 196 (1964). Dec on
hydrolysis into 1 mol gratiogenin and 2 mol glucose: Tschesche, Heesch, Ber. 85, 1067 (1952).
Derivative
Monohydrate.
Properties
Clusters of crystals from ethanol, mp 268-274°; [α]D20 +75° (c = 0.825
in alc). Also reported mp 286-289°; [α]D21 +81° (c = 0.83 in ethanol), (Tschesche,
1964). uv max (methanol): 295 nm (log ε 1.84). Slightly sol
in water, freely in alcohol. Practically insol in ether.Status
This monograph has been retired and is no longer subject
to revision or update.