We are Chengdumaochen biotechnolgy Ltd. CHINA based in Chengdu , China. We are member of Tradekey.com since June, 2009. Our business is related to Chemicals industry and we specifically deal in emodin,Rhein,Physcion,chrysophanol,vitamin,curcumin. Please find our product details below:ChrysophanolEINECS: 207-572-2Molecular formula:C15H10O4Molecular weight: 254.24Murity: >98%, monomer, high purityRheinEINECS : 207-521-4Purity: >98%, monomer, high purityMolecular formula: C15H8O6Molecular weight: 284.21 content:>98%emodinEINECS: 208-258-8Molecular formula:C15H10O5Molecular weight: 270.24 Murity: >98%, monomer, high purityRheinEINECS : 207-521-4Purity: >98%, monomer, high purityMolecular formula: C15H8O6Molecular weight: 284.21 content:>98%Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.