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18883-66-4 ,Streptozotocin ,链脲菌素, CAS: 18883-66-4 C8H15N3O7 / 265.22 MFCD00006607Streptozocin CAS No: 18883-66-4 Synonyms: 2-Deoxy-2-(3-methyl-3-nitrosoureido)-D-glucopyranose Streptozotocin MDL No: MFCD00006607 Chemical Formula: C8H15N3O7 Molecular Weight: 265.22 Product Structure COA: Product name: Streptozotocin; N-(Methylnitrosocarbamoyl)-D-glucosamine           CAS: 18883-66-4   M.F.: C8H15N3O7    M.W.: 265.22        Items Standards Results Appearance Slight yellow crystalline powder Complies Solubility Soluble in water, insoluble in ether Complies Identification UV, IR and HPLC Complies Melting point 120℃  ~  122°C 120℃ ~122 ℃ Specific rotation ( [α]20/D, c =1 inH2O) 38o  ~  40o 39.2o Any other impurity Max. 0.5% Complies Total impurity Max. 2% Complies Heavy metal Max. 20ppm Complies Residue on ignition Max. 0.1% 0.01% Loss on drying Max. 1% Max. 0.05% Assay by HPLC Min. 98% 99.5%