Methylbenactyzine Bromide (CAS No 3166-62-9) is a synthetic anticholinergic agent primarily used in neuromuscular research Originating from studies on muscarinic receptor antagonists this compound targets muscarinic acetylcholine receptors inhibiting neurotransmission in cholinergic pathways Its efficacy is noted within the nanomolar to low micromolar range in in vitro assays making it a valuable tool in pharmacological studies focused on modulating neuronal activity The compound is commonly applied in cell models to explore neurophysiological processes and in animal studies to assess its impact on muscle relaxation and potential therapeutic effects for conditions like muscle spasms Additionally it serves as a reference compound in drug screening programs aimed at identifying new anticholinergic agents Experimental concentrations typically depend on the specific research design allowing for tailored applications across varied experimental settings