Benzoe tonkinensis

Benzoe tonkinensis Siam-benzoin, gum benjamin Styrax tonkinensis (PIERRE) CRAIB t x HARTWICH Styracaceae Ph. Eur. Ill, OAB 90. Helv VII, USP XXtl, MD 25% free or combined adds, determined as benzoic acid (Ph. Eur. 111). Coniferyi benzoate (60%-80°/li), coumaryl benzoate (10-15%), benzoic acid (10%-20%), vanillin (about 0.3%), a-siaresinolk acid ( = 19-hydroxyoleanolic acid)... 

Benzoe Siam resinoid is obtained by solvent extraction of the resin from Styrax tonkinensis (Pierre) Craib ex Hartwich trees (Styracaceae). The wild growing Styrax tree is widespread in Thailand, Laos, Cambodia, and Vietnam. 

G. Benzoe Resinoid E benjoin resinoide Two types of b. are commercially available, b. Siam and b. Sumatra. The Siam type is produced by hydrocarbon solvent extraction of the tree resin of Styrax tonkinensis, Styraceae, which grows wild in Thailand, Laos, Cambodia and Vietnam. A related tree, Styrax benzoin, gives the starting material for b. Sumatra. The resins are collected by making incisions in the tree bark and later collecting the accumulated sun-dried material. This raw... 

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See also in sourсe #XX -- [ ]

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