Naloxegol, also known as and NKTR-118 and AZ-13337019, is a peripherally-selective opioid antagonist for the treatment of opioid-induced constipation. It was approved in 2014 in adult patients with chronic, non-cancer pain. Chemically, naloxegol is a pegylated (polyethylene glycol-modified) derivative of α-naloxol. Specifically, the 5-α-hydroxyl group of α-naloxol is connected via an ether linkage to the free hydroxyl group of a monomethoxy-terminated n=7 oligomer of PEG.
CAS Number: 854601-70-0
Molecular Weight: 651.78
trade names Movantik and Moventig
Chemical Name: (1S, 5R, 13R, 14S, 17S)-14-(2, 5, 8, 11, 14, 17, 20-heptaoxadocosan-22-yloxy)-4-(prop-2-en-1-yl)-12-oxa-4-azapentacyclo[126.96.36.199, .0, .0, ]octadeca-7, 9, 11(18)-triene-10, 17-diol
Appearance: Solid Power.
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: Soluble in DMSO, not in water.
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
- Chey WD, Webster L, Sostek M, Lappalainen J, Barker PN, Tack J. Naloxegol for opioid-induced constipation in patients with noncancer pain. N Engl J Med. 2014 Jun 19;370(25):2387-96.
- Daniali M, Nikfar S, Abdollahi M. Evaluating naloxegol for the treatment of opioid-induced constipation. Expert Opin Pharmacother. 2020 Jun;21(8):883-891.
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