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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Propylthiouracil and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Propylthiouracil 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 Propylthiouracil-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.

Propylthiouracil
CAT No: CL-PRPL-01 CAS No: 51-52-5 Mol Wt: 170.2 Mol F: C7H10N2OS Inv Status: Custom Synthesis
Chemical Name: 6-Propyl-2-sulfanylidene-2,3-dihydropyrimidin-4(1H)-one (as per EP) ; 4(1H)-Pyrimidinone, 2,3-dihydro-6-propyl-2-thioxo
Propylthiouracil EP Impurity A
CAT No: CL-PRPL-02 CAS No: 62-56-6 Mol Wt: 76.1 Mol F: CH4N2S Inv Status: Custom Synthesis
Chemical Name: Thiourea
Propylthiouracil EP Impurity B
CAT No: CL-PRPL-03 CAS No: 56-04-2 Mol Wt: 142.2 Mol F: C5H6N2OS Inv Status: Custom Synthesis
Chemical Name: 6-Methyl-2-sulfanylidene-2,3-dihydropyrimidin-4(1H)-one
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