<prompt> All are amino steroid non depolarizing neuromuscular except -PancuroniumPipecuroniumGantacuriumVacuronium  <response>: Stucture Clinical duration Long acting 50 min Intermediate 20-50 min Sho 15-20 min Ultra-sho 10-12 min Steroidal Pancuronium Pipecuronium Vecuronium Rocuronium Benzyliso- quinolinium d-Tubocurarine Metacurine Doxacurium Atracurium Cis-atracurium Mivacurium Onium chlorofumarate Gantacurium Phenolic ether Gallamine Diallyl derivative of toxiferine Alcuronium 