Aloe-emodin glucoside

Cassia angustifolia Vahl. Fan Xie Ye (leaflet) Sennosides, aloe-emodin, dianthrone glucoside, rhein monoglucoside, rhein, kaempferin, myricyl alcohol, anthraquinone derivative.33-510 Purgative, laxative, cathartic. 

N.A. Anthraquinone, beta-sitosterol, rhein, dianthrone glucosides, sennosides A, B, naphthalene glycosides, aloe-emodin, mucilage.99 100 510 511 Laxative, stimulant, anticancer, cathartic. 

Plants of the genus Aloe contain a reduced form of aloe-emodin as the C-glucoside of the corresponding anthrone, which is called aloin. Lemon yellow aloin is a mixture of two isomers. The major product (S)-aloin or (S)-P-D-glucopyranoside-aloe-emodin is referred to as aloin A (or barbaloin, 9-162), the (l )-isomer is aloin B (isobarbaloin). Related glycosides called aloinosides a and b contain a-L-rhamnopyranose bound by an O-glycosidic bond to the hydroxymethyl group at C-3. 

Aloe contains cathartic anthraglycosides mostly C-glucosides such as barbaloin, a glucoside of aloe-emodin. Aloes from most... 

Contains 6-10% (usually ca. 8%) anthragly-cosides as its active principles that consist primarily (60% or more) of C-glucosides (cascarosides) A, B, C, D, E, and F and barbaloin and chrysaloin), with minor concentrations of 0-glycosides (e.g., frangulin) also present. Other constituents include free anthraquinones (e.g., emodin, aloe-emodin. 

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