英文名稱
3-Amino-4-carbamoylpyrazole Hemisulfate
分子式
2 C4 H6 N4 O . H2 O4 S
Smiles Code
NC(=O)c1cn[nH]c1N.NC(=O)c2cn[nH]c2N.OS(=O)(=O)O
White to Pale Brown Solid
DMSO (Slightly), Methanol (Very Slightly), Water (Slightly, Heated, Sonicated)
Building Blocks; Pharmaceutical/API Drug Impurities/Metabolites;
3-Amino-4-carbamoylpyrazole Hemisulfate (Allopurinol EP Impurity A) is an impurity of Allopurinol (A547300), a pyrazole derivative that has been shown to induce neoplasm immunogenicity.