DEFINITION

Atracurium Besylate Injection is a sterile solution containing NLT 90.0% and NMT 115.0% of the labeled amount of atracurium besylate (C₆₅H₈₂N₂O₁₈S₂). It contains an amount of the trans-trans isomer equivalent to NLT 5.0% and NMT 6.5% of the labeled amount of atracurium besylate, an amount of the cis-trans isomer equivalent to NLT 34.5% and NMT 38.5% of the labeled amount of atracurium besylate, and an amount of the cis-cis isomer equivalent to NLT 55.0% and NMT 60.0% of the labeled amount of atracurium besylate.