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          Betamethasone

          CAS number: 378-44-9

          Molecular formula: C22H29FO5

          molecular weight: 392.46100

          Chemical structure:

          Details

          Product Name BETAMETHASONE BASE
          Shelf life 3 years
          ITEM SPECIFICATION RESULT
          CHARACTER  WHITE OR ALMOST WHITE CRYSTALLINE POWDER  ALMOST WHITE CRYSTALLINE POWDER
          SPECIFIC ROTATION +118° TO +126°  +123.6°
          IDENTIFICATION (1)COMPLIES BY IR CONFORMS
          (2)COMPLIES BY TLC CONFORMS
          CHROMATOGRAPHIC PURITY PRINCIPAL IMPURITY NOT MORE THAN 1.0% 0.34%
          TOTAL IMPURITIES NOT MORE THAN 2.0% 0.43%
          LOSS ON DRYING  NOT MORE THAN 0.5% 0.09%
          RESIDUE ON IGNITION NOT MORE THAN 0.2% 0.07%
          PARTICLE SIZE (VOLUME METHOD) IT SHOULD BE 90% BELOW 20μm 7.19μm
          ASSAY CONTAINS 97.0% TO 103.0% OF C22H29FO3 CALCULATED ON DRIED BASIS 99.2%
          CONCLUSION THE PRODUCT CONFORMS TO EP8.0