Freely soluble in water, very soluble in methylene chloride,freely soluble in anhydrous ethanol.

IR

Solution S is clear and not more intensely coloured than reference solution BY5.

+28.5° to +32.0° (anhydrous substance).

8.9~9.5

Impurity A, B, C≤0.2%; 

Impurity F,G,H≤0.15%; 

Unspecified impurities≤0.1%; 

Total impurities≤1.0% ; 

Chlorides≤0.1%; 

2-Propanol≤1.0%; 

Sulfated ash≤0.1%

99.0% ~101.0%

It is a muscle relaxant. It is mainly used in general anesthesia, muscle relaxation and endotracheal intubation.

In an airtight container, protected from light, at a temperature below -15℃.