CAS 1028-33-7 appears in our catalog under these names: Pentifylline, 1-n-Hexyltheobromine, 98+% , Pentifylline 98%, 1-Hexyl-3,7-dimethyl-1H-purine-2,6(3H,7H)-dione, 98%, 98%, Pentifylline, 99.23%. Offered by: Mikromol, LoGiCal, Dr. Ehrenstorfer, Thermo Scientific (Alfa Aesar), Ambeed. Available pack sizes: 100mg, 10mg, 50mg, 250mg, 1g, 100 mg, 10mM/1mL, 250 mg.