CAS 2573798-36-2 appears in our catalog under these names: Methyl 7-hydroxy-5-methylthieno(3,2-b)pyridine-3-carboxylate, 98%, Methyl 7-hydroxy-5-methylthieno[3,2-b]pyridine-3-carboxylate, 98%, 98%, methyl 5-methyl-7-oxo-4H,7H-thieno[3,2-b]pyridine-3-carboxylate, 98%. Offered by: AmBeed, Chemat, Fluorochem. Available pack sizes: 10g, 100mg, 1g, 5g, 250mg.