CAS 100637-60-3 appears in our catalog under these names: 4-(Carboxymethyl)-2h-1,4-benzothiazin-3(4h)-one, 96%, (2,3-Dihydro-3-oxo-4H-1,4-benzothiazin-4-yl)acetic acid, 2-(3-Oxo-2,3-dihydro-4H-benzo[b][1,4]thiazin-4-yl)acetic acid, ≥96%. Offered by: Combi-blocks, Biosynth, Chemat. Available pack sizes: 1g, 5g, 2,5g, 50mg, 250mg.