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Allopurinol Impurity E
CAS No. : 31055-19-3 ;Mol. Wt. : 183.16 ;Other Technical Details :
Allopurinol EP Impurity E ;
Allopurinol USP Related Compound E ;
Ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate ;
Molecular Formula :C7H9N3O3 ;