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API Impurities

Impurities are substances inside a confined amount of Liquid, gas or solid, which differ from the Chemical Composition of the material or compound.

Impurities are either naturally occurring or added during synthesis of a chemical or commercial product. During production, impurities may be purposely, accidentally, inevitably, or incidentally added into the substance.

The level of impurities in a material is generally defined in relative terms. Standards have been established by various organizations that attempt to define the permitted levels of various impurities in a manufactured product. Strictly speaking, then, a material's level of purity can only be stated as being more or less pure than some other material.

    • Sr. No. Name of the compound Structure of the compound CAS Number
      1 Impurity A:(S)-N-(1-(isopentylamino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide 289472-80-6
      2 Impurity E: 75706-12-6
      3 Impurity L:(S)-3-phenyl-2-(pyrazine-2-carboxamido) propanoic acid 114457-94-2
      4 Impurity M:(S)-methyl 3-phenyl-2-(pyrazine-5-carboxamido)propanoate 73058-37-4
    • Sr. No. Name of the compound Structure of the compound CAS Number
      1 4-(3-(4-Cyano-3-(trifluoromethyl)phenyl)-5,5-dimethyl-2,4-dioxoimidazolidin-1-yl)-2-fluoro-N-methylbenzamide 1242137-18-3