Dacuronium is a new steroidal drug of neuromuscular blocking properties. Dacuronium produced a competitive type of neuromuscular block with a potency of approximately one-tenth that of tubocurarine and one-fiftieth that of pancuronium.
8-Chloro-2-(2-phenylethyl)-5,6,7-trihydroxy-5,6,7,8-tetrahydrochromone, a chromone derivative, is present in the methanol extract obtained from withered wood of Aquilaria sinensis.