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            2. Shanghai Fine Chemicals

              API • Vitamins • Food ingredients
              Veterinary Injection & Premix

              Doxycycline Hyclate

              TESTING ITEMS  
              CHARACETRS: YELLOW CRYSTALLINE POWDER
              IDENTIFICATION: HPLC
              SULPHURIC ACID REACTION A YELLOW COLOUR DEVELOPS
              IT GIVES REACTION OF CHLORIDES
              PH 2.0~3.0
              SPECIFIC ABSORBANCE AT 349nm E(1%) 300~355
              SPECIFIC OPTICAL ROTATION -105 ~ -120°
              HE**Y METALS: ≤50PPM
              LIGHT-ABSORBING IMPURITIES AT 490nm ≤0.07
              RELATED SUBSTANCES       6-EPIDOXYCYCLINE ≤2.0% METACYCLINE≤2.0% 4-EPIDOXYCYCLINE≤0.5% (EP5) 4-EPI-6-EPIDOXYCYCLINE≤0.5% (EP5) OXYTETRACYCLINE≤0.5% (EP5) ANY OTHER IMPURITY≤0.5% NOT IDENTIFIED IMPURITIES≤0.1% (EP5)
              ETHANOL 4.3~6.0% (m/m)
              SULPHATED ASH ≤0.4%
              WATER 1.4~2.8%
              ASSAY 95.0~102.0%( C22H25ClN2O8) BASED ON ANHYDROUS,ETHANOL-FREE SUBSTANCE
              最合适网上赚钱的项目 677| 374| 686| 500| 281| 812| 377| 935| 770| 191| 677| 953| 644| 230| 296| 362| 671| 527| 764| 548| 227| 320| 584| 152| 311| 254| 920| 758| 110| 290| 779| 782| 989| 953| 917| 599|