Synonyms: (2-Hydroxypropyl)trimethylammoniumchloride acetate (6CI); 1-Propanaminium, 2-(acetyloxy)-N,N,N-trimethyl-,chloride (9CI); Ammonium, (2-hydroxypropyl)trimethyl-, chloride, acetate (8CI);(2-Acetoxypropyl)trimethylammonium chloride; (?à)-Acetyl-b-methylcholine chloride; Acetyl-b-methylcholine chloride; Amechol; DL-Acetyl-b-methylcholine chloride; Mecholinechloride; Mecholyl; Methacholine chloride; Methacholinium chloride; O-Acetyl-b-methylcholine chloride;Provocholine; Trimethyl-b-acetoxypropylammonium chloride; b-Methylacetylcholine chloride