CAS 7353-89-1 appears in our catalog under these names: Methyl 4,5-bis(chloromethyl)thiophene-2-carboxylate, 97%, Methyl 4,5-bis(chloromethyl)thiophene-2-carboxylate, 95%. Offered by: Combi-blocks, AmBeed, Chemat, Fluorochem. Available pack sizes: 250mg, 5g, 1g, 100mg.