European Pharmacopoeia (EP) Reference Standard Synonym(s): 7-Hydroxy-5-methyl[1,2,4]triazolo[1,5- a ]pyrimidine; 5-Methyl[1,2,4]triazolo[1,5- a ]pyrimidin-7-ol; 6-Methyl-4-hydroxy-1,3,3 a ,7-tetraazaindene; 7-Hydroxy-5-methyl-1,3,4-triazaindolizine; NSC 32071; NSC 511493 Amino Acid Sequence:...