CAS Registry Number

CAS 7403-46-5 — 2-Chloro-1-Methylpyridinium p-toluenesulfonate

2-Chloro-1-methylpyridinium p-toluenesulfonate is a quaternary ammonium salt widely used as a key reagent in organic synthesis, particularly for the chloromethylation of nucleophiles and in the preparation of pyridine derivatives. It is also employed in pharmaceutical and agrochemical intermediate production due to its reactivity and selectivity. This chemical has a CAS number of 7403-46-5, with the molecular formula C13H14ClNO3S and a molecular weight of 299.77. It must be stored between 2 to 8°C, and it carries a **Warning** signal word for safety. Molekula supplies 2-Chloro-1-Methylpyridinium p-toluenesulfonate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.