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

N-Nitroso Macitentan
CAT No: CL-MCTN-NO-01 CAS No: NA Mol Wt: 617.3 Mol F: C19H19Br2N7O5S Inv Status: Custom Synthesis
Chemical Name: N-Nitroso 5-(4-bromophenyl)-6-[2-(5-bromopyrimidin-2-yl)oxyethoxy]-N-(propylsulfamoyl)pyrimidin-4-amine
Macitentan Nitroso Pyrimidine N-Propyl Impurity
CAT No: CL-MCTN-NO-02 CAS No: NA Mol Wt: 538.2 Mol F: C19H18Br2N6O3 Inv Status: Custom Synthesis
Chemical Name: N-(5-(4-Bromophenyl)-6-(2-((5-bromopyrimidin-2-yl)oxy)ethoxy)pyrimidin-4-yl)-N-propylnitrous amide
N-Nitroso Ethylene hydroxy Impurity
CAT No: CL-MCTN-NO-03 CAS No: NA Mol Wt: 460.3 Mol F: C15H18BrN5O5S Inv Status: Custom Synthesis
Chemical Name: N-Nitroso Ethylene hydroxy Impurity
N-Nitroso Macitentan Dimer Impurity
CAT No: CL-MCTN-NO-04 CAS No: NA Mol Wt: 858.5 Mol F: C28H30Br2N10O8S2 Inv Status: Custom Synthesis
Chemical Name: N-Nitroso Macitentan Dimer Impurity
N-Nitroso Pyrimidine Amine Impurity
CAT No: CL-MCTN-NO-05 CAS No: NA Mol Wt: 434.7 Mol F: C13H13BrClN5O3S Inv Status: Custom Synthesis
Chemical Name: N-Nitroso Pyrimidine Amine Impurity
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