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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Pyrimethamine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Pyrimethamine impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Pyrimethamine-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Pyrimethamine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Pyrimethamine-d3 Stable Isotopes CS-O-10164 1189936-99-9 In Stock
Pyrimethamine-D5 Stable Isotopes CS-O-54343 58-14-0 (Unlabelled) Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2-Chlorophenyl)Acetonitrile Impurities CS-M-47429 2856-63-5 In Stock
Pyrimethamine EP Impurity B Impurities CS-EN-00033 3275-44-3 In Stock


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Chloro benzaldehyde Intermediates CS-O-31569 104-88-1 In Stock
Pyrimethamine Biotin Intermediates CS-O-13016 1219358-20-9 Enquire
Pyrimethamine Impurity A Intermediates CS-T-50966 55474-40-3 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Pyrimethamine Fine Chemicals CS-O-11727 58-14-0 In Stock