Description_x000D_ Application_x000D_ Tubocurarine hydrochloride pentahydrate has been used as a acetylcholinesterase inhibitor (Ach) inhibitor in myotubes, muscle and as neuromuscular junction blocker in zebra fish embryos._x000D_ Biochem/physiol Actions_x000D_ Tubocurarine is a muscle relaxant and a nicotinic acetylcholine receptor antagonist. It can induce neuromuscular blocking._x000D_ Features and Benefits_x000D_ This compound is featured on the Potassium Channels page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here._x000D_ Preparation Note_x000D_ Tubocurarine hydrochloride pentahydrate is soluble in water at 50 mg/ml (with heat as required) and yields a clear to slightly hazy, colorless to yellow solution. It is also soluble in methanol and ethanol.