Purine, 99%, C5H4N4, CAS Number-120-73-0, 1h-purine, 3,5,7-triazaindole, 3h-purine, 7h-imidazo 4,5-d pyrimidine, 9h-purine, 9h-purine van, beta-purine, imidazo 4,5-d pyrimidine, isopurine, purine, 1g, 98.5% min. (HPLC), 26, 354, CHEBI:17258, White to Beig