Macitentan

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5-(4-Bromophenyl)-4,6-dichloropyrimidine(Impurity-V)

  • CAT NUMBER DCTI-C-2069
  • CAS NUMBER 146533-41-7
  • MOLECULAR FORMULA C10H5BrCl2N2
  • MOLECULAR WEIGHT 303.96

HN-MCTRCO1

  • CAT NUMBER DCTI-C-2171
  • CAS NUMBER 32779-36-5
  • MOLECULAR FORMULA C4H2BrClN2
  • MOLECULAR WEIGHT 193.43

HN-MCTRCO2

  • CAT Number DCTI-C-1903
  • CAS Number 1393813-43-8
  • Molecular Formula C15H19BrN4O4S
  • Molecular Weight 431.31

HN-MCTRCO3

  • CAT Number DCTI-C-1904
  • CAS Number 1393813-42-7
  • Molecular Formula C13H14BrClN4O2S
  • Molecular Weight 405.7

HN-MCTRCO4

  • CAT NUMBER DCTI-C-2212
  • CAS NUMBER 441798-36-3
  • MOLECULAR FORMULA C19H20BrClN6O4S
  • MOLECULAR WEIGHT 543.82

HN-MCTRCO6

  • CAT NUMBER DCTI-C-2213
  • CAS NUMBER 441796-13-0
  • MOLECULAR FORMULA C18H18Br2N6O4S
  • MOLECULAR WEIGHT 574.25

HN-MCTRCO7

  • CAT NUMBER DCTI-C-2214
  • CAS NUMBER NA
  • MOLECULAR FORMULA C19H20Cl2N6O4S
  • MOLECULAR WEIGHT 499.37

Macitentan Amine

  • CAT NUMBER DCTI-C-3227
  • CAS NUMBER 1433875-21-8
  • MOLECULAR FORMULA C16H13Br2N5O2
  • MOLECULAR WEIGHT 467.12

Macitentan-D4

  • CAT Number DCTI-A-039
  • CAS Number 1258428-05-5
  • Molecular Formula C19H16D4Br2N6O4S
  • Molecular Weight 592.3
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General Information

Macitentan Impurities and Macitentan 

For evaluating the purity and safety of Macitentan, an essential active pharmaceutical ingredient, Daicel Pharma offers a customized synthesis of Macitentan impurity standards. These impurity standards include crucial compounds such as HN-MCTRCO1, HN-MCTRCO2, N-Despropyl Macitentan, HN-MCTRCO3, and more. Additionally, Daicel Pharma provides worldwide delivery options for Macitentan impurity standards.

Macitentan [CAS: 441798-33-0] has antihypertensive and antineoplastic properties and is a dual endothelin receptor (ETR) antagonist. It treats pulmonary arterial hypertension (PAH). Acting as an endothelin receptor antagonist, Macitentan functions as an antihypertensive agent by blocking the effects of endothelin, a hormone involved in blood vessel constriction.

Macitentan: Use and Commercial Availability 

Opsumit, which contains the active ingredient Macitentan, is a medication for the long-term treatment of patients with pulmonary arterial hypertension (PAH) classified as World Health Organization (WHO) Functional Class II or III. It reduces morbidity in PAH cases associated with idiopathic or heritable factors and those linked to connective tissue disease or congenital heart disease. Opsumit can be used alone or in combination with phosphodiesterase-5 (PDE-5) inhibitors as a part of the treatment regimen.

Macitentan Structure and Mechanism of ActionMacitentan Structure and Mechanism of Action

The chemical name of Macitentan is N-[5-(4-Bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl]-N′-propylsulfamide. Its chemical formula is C19H20Br2N6O4S, and its molecular weight is approximately 588.3 g/mol.

Macitentan prevents the binding of Endothelin (ET)-1 to ETA and ETB receptors in smooth muscle cells.

Macitentan Impurities and Synthesis

The analysis and control of impurities in Macitentan1, an endothelin receptor antagonist used for pulmonary arterial hypertension, are critical for ensuring its safety and efficacy. Impurities in Macitentan may include related compounds and degradation products. Analytical techniques such as high-performance liquid chromatography (HPLC) and mass spectrometry (MS) help identify and quantify these impurities. Stringent control measures and specifications limit the presence of impurities in Macitentan, following regulatory guidelines.

Daicel Pharma strictly adheres to cGMP standards and operates an analytical facility for preparing Macitentan impurity standards, which include HN-MCTRCO1, HN-MCTRCO2, N-Despropyl Macitentan, HN-MCTRCO3, and more. In addition, we offer deuterium-labeled Macitentan standard, Macitentan-D4, which is essential for conducting bioanalytical research and BA/BE studies. Our Macitentan impurity standards have a detailed Certificate of Analysis (CoA) that provides a comprehensive characterization report. This report includes data obtained through techniques, 1H NMR, 13C NMR, IR, MASS, and HPLC purity analysis2. Upon request, we give additional data like 13C-DEPT. Moreover, we can synthesize unknown Macitentan impurity standards, degradation products, and labeled compounds to evaluate the effectiveness of generic Macitentan. Each delivery has a comprehensive characterization report.

References
FAQ's

Frequently Asked Questions

Regulatory authorities require manufacturers to report and document the presence of impurities in Macitentan formulations, including their identification, quantification, and compliance with specified limits.

Some impurities in Macitentan can contribute to changes in color, odor, or taste. Strict control measures are in place to ensure the product's organoleptic properties remain within acceptable limits.

Acetonitrile is the solvent used when analyzing many impurities in Macitentan.

Macitentan impurities should be stored, at a controlled room temperature, usually between 2-8 °C.

Note: Products protected by valid patents by a manufacturer are not offered for sale in countries having patent protection. The sale of such products constitutes a patent infringement, and its liability is at the buyer's risk.

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