CAS 144291-93-0 appears in our catalog under these names: 7,7-Dimethyl-2-thioxo-1,5,7,8-tetrahydro-2h-pyrano[4,3-b]pyridine-3-carbonitrile, 95%, 7,7-Dimethyl-2-thioxo-2,5,7,8-tetrahydro-1H-pyrano(4,3-b)pyridine-3-carbonitrile, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 1g, 5g.