4-Methyl-2-pyridinecarbothioamide (CAS 16225-37-9) has a molecular formula of C?H?N?S and a molecular weight of 152.22 g/mol, with a methyl group at C4 and a thiocarboxamide moiety (-CSNH?) at C2 of the pyridine ring. As a pyridine-derived thioamide, it is a key intermediate in synthesizing pharmaceuticals, agrochemicals, and heterocyclic compounds (via cyclization reactions). It requires sealed, dry storage to avoid moisture-induced decomposition of the thiocarboxamide group, ensuring reactivity and stability for synthetic applications.