[plant origin] Liao branch plant palm leaf Chinese rhubarb Rheum the palmatum rhizome, myrtaceae eucalyptus robusta Eucalyptus robusta) does the leaf, common guayava Psidium guajowa and Syzygium cordatum, dogwood branch dogwood Cornus the officinalis fruit, lythraceae loosestrife Lythrum the salicaria flower and so on.

[alias] 3,4,5- gallic acids (3,4,5-Trihy-droxybenzoic acid)  [structural formula]  [molecular formula and molecular weight] C7H605,170.13   [physical property]  [pharmacological action] 1. antibacterial, anti-virus, anti-fungus: In vitro to the golden yellow staphylococcus, the sarcina, Alpha - the chain coccus, nai the Chinese zither coccus, the pseudomonas aeruginosa, the shigella, typhoid bacillus Hd, bacillus paratyphosus Adeng has the inhibitory action, its bacteriostasis density is 5mg/ml. In vitro, has the bacteriostasis function under 3% densities to 17 kind of fungi, also has certain inhibitory action to the influenza virus.