Products list

   Pancuronium Bromide &

     Intermediates

   Vancuronium Bromide &

     Intermediates

   Voglibose & Intermediates

   Letrozole & Intermediates 

   Lomerizine Hydrochloride

   Diammonium Glycyrrhizinate

Vecuronium Bromide & Intermediates

1、 Vecuronium Bromide
         CAS：50700-72- 6

         Chemical structure：

   Formula：C₃₄H₅₇BrN₂O₄
         Molecular weight：637.74
        Specification：USP30，EP5

   Related substances：

        Impurity A <0.25%，Impurity C <0.25%, Impurity D < 0.25%,

        Impurity E <0.25% (HPLC), Impurity B <0.25%(TLC)

        Other single impurity < 0.1%, Total impurities <0.7%

   Assay >99.0%

2、 Intermediate：2a,3a,16a,17a-Diepoxy-17β -acetoxy-5 a -androstane

     CAS：50588-22-2

        Chemical structure：

  Formula：C₂₁H₃₀O₄

         Molecular weight：346.21

         Appearance：white powder

         Assay：>95%

 3、 Intermediate：(2β,3α,16β,17β)-2,3-bis-piperidino-3-hydroxy-17-acetone-5-androstane

          Chemical structure：

          Formula：C₂₉H₄₈N₂O₂

         Molecular weight：456.72

         Appearance：white powder

         Assay：>95%

 4、Intermediate：(2β,3α,16β,17β)-2,3-bis-piperidino-3,17-dihydroxy-5-androstane

         Chemical structure：

         Molecular weight：458.73

         Appearance：white powder

         Assay：>95%

 5、 Intermediate：(2β,3α,16β,17β)-2,3-bis-piperidino-3,17-diacetoxy-5-androstane

         CAS：13529-31-2

        Chemical structure：

          Formula：C₃₃H₅₄N₂O₄

          Molecular weight：462.76

          Appearance：white powder

          Assay：>95%