Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 62-51-1, Whether you call it Methacholine Chloride, (2-Acetoxypropyl)trimethylammonium Chloride , Acetyl-Beta-methylcholine Chloride or 2-(Acetyloxy)-N -N -N-trimethyl-1-propanaminium Chloride you can be assured the Methacholine Chloride products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.