Chemical name: 1-[17ß-(acetyloxy)-3 a -hydroxy-2ß-(morpholin-4-yl)-5 a -androstan-16ß-yl]-1-(prop-2-enyl) pyrrolidinium bromide
Structural formula:

Molecular formula: C₃₂H₅₃BrN₂O₄
Molecular weight: 609.70
Property: whitish or yellowish powder . freely soluble in water and in anhydrious ethanol,
Specific optical rotation: +28.5 ° ~ +32.0 °
Specification: EP5.4
Appearance: whitish or yellowish crystalline powder .
pH: 8 to 9.5

Related Substances:
Impurity A: Not More Than 0.2%.
Impurity B: Not More Than 0.3%.
Impurity C: Not More Than 0.3%.
Impurity D, E, F, G, H : Not More Than 0.1%.
Any other Related compounds: Not More Than 0.1%.
Total Related Compounds: Not More Than 1.5%.
Loss on drying: Not more than 4%
Reidue on ignition: Not more than 0.1%
Assay: 99.0% to 101.0% calculated on the anhydrous basis

Use: Muscular relaxant