Appearance: brown powder extracted source: for car plant car or criminal record before the dry seeds mature keqiao.there detection methods: thin layer chromatography (TLC) packing: aluminum foil bag or cardboard barrels shelf life: *4 months quality standard: ratio of *0:1 plants use part: the seed color: the orange-brown staining: powder mesh: **0 mesh bouquet: special odor dry weightlessness: 5% or ash: < 5% heavy metal: < *0 PPM pesticide residue: < 2 PPM microbial standards of total bacteria: < gasoloid density was exceed ***0 CFU/gm e. coli, salmonella was not detected, was not detected mould and yeast < gasoloid density was exceed **0 CFU/gm major functions: clear away heat diuresis, ooze wet the drench, bright eye, eliminate sputum. Used for water swelling full, hot shower astringent pain, discharge the wet diarrhea, red eyes swelling and pain, sputum hot cough. To all sorts of bacillus and staphylococcus has inhibitory effect. CheQianZi extract have prevent kidney strong form role.