CAS 2487-40-3 appears in our catalog under these names: 2-Mercapto-1,9-dihydro-6h-purin-6-one, 95%, 2-Thioxanthine, 95%, 2–Thioxanthine, 2-Thioxanthine, 98+% , 2-Thioxanthine, >80.0%(HPLC). Offered by: Combi-blocks, GLPBio, Thermo Scientific (Alfa Aesar), TCI, Biosynth. Available pack sizes: 1g, 250mg, 5g, 200mg, 0,5g, 10g, 100mg, 500mg.