Let me introduce ourselves-Xian Guanyu Bio-tech. Co. Ltd. as a manufacturer and exporter of herbs extracts in china. we can supply many kinds of herb extracts with high quality, and manufacture the products demanded by customers.
following are the main products we are regularly manufacturing:
Camptothecin,10-hydroxycamptothecin,7-Ethyl-10-hydroxycamptothecin,Topotecan,Irinotecan, Lutein,Trans-Resveratrol, Polydatin, Evodiamine, Artemisinin, Synephrine hydrochloride,Curcumin, Ferulic acid,Ursolic acid,Chlorogenec acid,Docetaxel,Paclitaxel, 10-DAB,  Emodin, Diacerein,Podophyllotoxin, Etoposide,Doxorubicin, Epirubicin,Cytarabine,Octacosanol, 5-HTP, Sinomenine HCL, Genistein,Total Tubeimosides, Puerarin, TanshinonIIA, Rubescensine A, Sclareolide,Lycopene,Luteolin,Capsaicin, Piperine,Chondroitin Sulfate

If any of the item be of interest to you. Please donot hesitate to...