Letermovir is an antiviral medication specifically used for the prevention of cytomegalovirus (CMV) infection in CMV-seropositive hematopoietic stem cell transplant recipients. It inhibits the CMV DNA terminase complex, blocking viral replication. Letermovir is usually well tolerated and has a lower toxicity profile compared to older antivirals like ganciclovir. It can be administered orally or intravenously.
Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Letrozole and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Letrozole impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Letrozole-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.
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