CAS 1015787-98-0: Gefapixant

  • CAS 1015787-98-0: Gefapixant

CAS 1015787-98-0: Gefapixant
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  • CAS Number: 1015787-98-0
  • Stock: 247g
  • Assay: 98.80%

Gefapixant, CAS 1015787-98-0

Gefapixant, CAS 1015787-98-0, Stock 274g, Assay 98.8%, White powder, Water 0.19%, Single Impurity 1.2%.


Gefapixant, also known as AF-219 or MK-7264, is a P2X3 receptor antagonist. Gefapixant is currently under clinical trials for chronic cough. It is believed that excessive activation of P2X3 receptors is associated with hyper-sensitization of sensory neurons. Neuronal hyper-sensitization in the airways and lungs, triggered by injury or infection, can cause an exaggerated, persistent and frequent urge to cough, so called chronic cough. P2X3 receptors seem to have a key role in mediation of cough neuronal hypersensitivity. Antagonists of P2X3 receptors such as AF-219 are a promising new group of antitussives.

Product Details:

Name: Gefapixant

CAS#: 1015787-98-0 (free base)

Chemical Formula: C14H19N5O4S

Exact Mass: 353.1158

Molecular Weight: 353.397

Elemental Analysis: C, 47.58; H, 5.42; N, 19.82; O, 18.11; S, 9.07


Synonym: Gefapixant; MK-7264; MK 7264; MK7264; AF-219; AF219; AF 219; RO4926219; RO-4926219; RO 4926219;

IUPAC/Chemical Name: 5-[(2,4-diaminopyrimidin-5-yl)oxy]-2-methoxy-4-(propan-2-yl)benzene-1-sulfonamide


InChi Code: InChI=1S/C14H19N5O4S/c1-7(2)8-4-10(22-3)12(24(17,20)21)5-9(8)23-11-6-18-14(16)19-13(11)15/h4-7H,1-3H3,(H2,17,20,21)(H4,15,16,18,19)


Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001