WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 318302

CAS#: 16590-41-3 (free)

Description: Naltrexone is a drug that reverses the effects of opioids and is used primarily in the management of alcohol dependence and opioid dependence. It should not be confused with naloxone or nalorphine, which are used in emergency cases of opioid overdose.

Price and Availability


USD 550

USD 950

Naltrexone, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 318302
Name: Naltrexone
CAS#: 16590-41-3 (free)
Chemical Formula: C20H23NO4
Exact Mass: 341.1627
Molecular Weight: 341.4009
Elemental Analysis: C, 70.36; H, 6.79; N, 4.10; O, 18.75

Related CAS #: 16590-41-3 (free)   16676-29-2 (HCl)  

Synonym: Naltrexone, Revia, Depade, Vivitrol, Celupan, EN-1639A, EN 1639A, EN1639A

IUPAC/Chemical Name: (4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one


InChi Code: InChI=1S/C20H23NO4/c22-13-4-3-12-9-15-20(24)6-5-14(23)18-19(20,16(12)17(13)25-18)7-8-21(15)10-11-1-2-11/h3-4,11,15,18,22,24H,1-2,5-10H2/t15-,18+,19+,20-/m1/s1

SMILES Code: C1CC1CN2CC[C@]34[C@@H]5C(=O)CC[C@]3([C@H]2CC6=C4C(=C(C=C6)O)O5)O

Technical Data

Off-white to yellow solid powder.

>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).

Soluble in DMSO, not in water

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).

Harmonized System Code:


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