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Metamizole Impurity B
![Metamizole Impurity B Pharmaceutical Secondary Standard; Certified Reference Material, certified reference material, pharmaceutical secondary standard, pkg of 100 mg](/deepweb/assets/sigmaaldrich/product/structures/273/224/c6417865-1d15-4eb1-9947-08880226ab84/640/c6417865-1d15-4eb1-9947-08880226ab84.png)
Synonym(s):
4-Aminoantipyrine, 4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one, Ampyrone
Empirical Formula (Hill Notation):
C11H13N3O
CAS Number:
Molecular Weight:
203.24
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