CAS 438532-35-5 appears in our catalog under these names: 6-tert-Butyl-2-(2,5-dioxo-2,5-dihydro-1h-pyrrol-1-yl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile, 95%, 6-(tert-Butyl)-2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile 95%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 1g, 5g, 50mg, 100mg, 250mg.