Pemetrexed EP Impurity B

Pemetrexed EP Impurity B product with CAS: 1802552-04-0 is also known as Pemetrexed (5R)-Dimer. This product can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require. It is used in Pemetrexed impurity profiling as per limits and threshold values specified by respective drug legislation, FDA, and pharmacopoeial guidelines. Moreover, Pemetrexed (5R)-Dimer is also used in the process of Abbreviated New Drug Application (ANDA) filing to FDA and toxicity study of respective drug formulation.