Cefprozil EP Impurity J

Cefprozil EP Impurity J product with CAS: NA is also known as (6R,7R)-7-[[(2R)-2-[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-8-oxo-3-[(1E)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; . This product can be used as a working standard or secondary reference standard (additional internal validation as per respective FDA regulations/guidelines may require). This compound is generally used for Quality Control (QC), Quality Assurance (QA) during commercial production of Cefprozil and its related formulations. Moreover, (6R,7R)-7-[[(2R)-2-[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-8-oxo-3-[(1E)-prop-1-enyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation. Please also find out other impurities of Cefprozil developed in our R&D.