CAS 53750-66-6 appears in our catalog under these names: 4-Chloropyridine-2-carbonyl chloride, 95%, 4-chloropyridine-2-carbonyl chloride, 4-Chloropicolinoyl chloride 98%, 4-Chloropyridine-2-carbonyl chloride, 98%. Offered by: Combi-blocks, TRC, Ambeed, Fluorochem. Available pack sizes: 1g, 10g, 5g, 100mg, 250mg.