Oxicodegol HCl

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MedKoo CAT#: 414431

CAS#: 1211231-53-6 (HCl)

Description: Oxicodegol HCl is a mu​-opioid agonist used in the treatment of Moderate to Severe Chronic Low Back Pain

Chemical Structure

Oxicodegol HCl
CAS# 1211231-53-6 (HCl)

Theoretical Analysis

MedKoo Cat#: 414431
Name: Oxicodegol HCl
CAS#: 1211231-53-6 (HCl)
Chemical Formula: C31H50ClNO10
Exact Mass: 631.31
Molecular Weight: 632.190
Elemental Analysis: C, 58.90; H, 7.97; Cl, 5.61; N, 2.22; O, 25.31

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
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Related CAS #: 1415126-69-0 (phosphate); 1211231-85-4 (trifluoroacetate); 1211231-53-6 (HCl); 1211231-76-3 (free base)  

Synonym: Oxicodegol hydrochloride; Oxicodegol HCl; NKTR181 hydrochloride; NKTR 181 hydrochloride; NKTR-181 hydrochloride

IUPAC/Chemical Name: (4R,4aS,7S,7aR,12bS)-7-((2,5,8,11,14,17-hexaoxanonadecan-19-yl)oxy)-9-methoxy-3-methyl-1,2,3,4,5,6,7,7a-octahydro-4aH-4,12-methanobenzofuro[3,2-e]isoquinolin-4a-ol hydrochloride


InChi Code: InChI=1S/C31H49NO10.ClH/c1-32-9-8-30-27-23-4-5-24(35-3)28(27)42-29(30)25(6-7-31(30,33)26(32)22-23)41-21-20-40-19-18-39-17-16-38-15-14-37-13-12-36-11-10-34-2;/h4-5,25-26,29,33H,6-22H2,1-3H3;1H/t25-,26+,29-,30-,31+;/m0./s1

SMILES Code: COCCOCCOCCOCCOCCOCCO[C@H]1CC[C@]2([C@H]3Cc4c5c(O[C@@H]1[C@@]25CCN3C)c(OC)cc4)O.Cl

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: To be determined

Shelf Life: >2 years if stored properly

Drug Formulation: To be determined

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

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 632.19 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

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1: Henningfield JE, Gudin J, Rauck R, Gimbel J, Tagliaferri M, Doberstein SK, Di Fonzo C, Lu L, Katz N, Siddhanti S, Schnoll S. Measuring Opioid Withdrawal in a Phase 3 Study of a New Analgesic, NKTR-181 (Oxycodegol), in Patients with Moderate to Severe Chronic Low Back Pain. Pain Med. 2020 Aug 1;21(8):1553-1561. doi: 10.1093/pm/pnz326. PMID: 32150255; PMCID: PMC7530570.

2: Ge X, Henningfield JE, Siddhanti S, Jobes J, Lu L, Xie S, Ziola M, Kelsh D, Vince B, Di Fonzo CJ, Tagliaferri M, Zalevsky J, Doberstein SK, Hoch U, Eldon MA. Human Abuse Potential of Oral NKTR-181 in Recreational Opioid Users: A Randomized, Double-Blind, Crossover Study. Pain Med. 2020 Feb 1;21(2):e114-e126. doi: 10.1093/pm/pnz232. PMID: 31553457.

3: Gudin J, Rauck R, Argoff C, Agaiby E, Gimbel J, Katz N, Doberstein SK, Tagliaferri M, Tagliaferri M, Potts J, Wild J, Lu L, Siddhanti S, Hale M, Markman J. Long-term Safety and Tolerability of NKTR-181 in Patients with Moderate to Severe Chronic Low Back Pain or Chronic Noncancer Pain: A Phase 3 Multicenter, Open-Label, 52-Week Study (SUMMIT-08 LTS). Pain Med. 2020 Nov 7;21(7):1347-1356. doi: 10.1093/pm/pnz169. PMID: 31361019; PMCID: PMC7372935.