3-(4H-1,2,4-トリアゾール-4-イル)-1H-ピラゾール-4-カルボキサミドアロプリノール類縁化合物Csynthesis-005Allopurinol-001ALLOPURINOL RC CAllopurinol EP Imp CAllopurinol impurity CAllopurinol Impurity1579Allopurinol Related CoMpound CAllopurinol impurity C (A0350030)Allopurinol USP Related Compound C1346604-13-4