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SML2956

Sigma-Aldrich

Nalmefene Hydrochloride

≥98% (HPLC)

Synonym(s):

(5a)-17-(Cyclopropylmethyl)-4,5-epoxy-6-methylene-morphinan-3,14-diol hydrochloride, NIH 1036, Nalmefene HCl

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10 MG
CHF 90.00
50 MG
CHF 364.00

CHF 90.00

Estimated to ship on12 April 2025

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10 MG
CHF 90.00
50 MG
CHF 364.00

About This Item

Empirical Formula (Hill Notation):
C21H25NO3·HCl
CAS Number:
58895-64-0
Molecular Weight:
375.89
MDL number:
MFCD27937056
UNSPSC Code:
12352200
NACRES:
NA.77

CHF 90.00

Estimated to ship on12 April 2025

Request a Bulk Order

Quality Level

100

Assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

2-8°C

SMILES string

C=C1CC[C@@]2(O)[C@H]3CC4=C5[C@@]2(CCN3CC6CC6)[C@H]1OC5=C(C=C4)O.Cl

InChI

1S/C21H25NO3.ClH/c1-12-6-7-21(24)16-10-14-4-5-15(23)18-17(14)20(21,19(12)25-18)8-9-22(16)11-13-2-3-13;/h4-5,13,16,19,23-24H,1-3,6-11H2;1H/t16-,19+,20+,21-;/m1./s1

InChI key

GYWMRGWFQPSQLK-OPHZJPRHSA-N

Biochem/physiol Actions

Nalmefene hydrochloride, a naltrexone analogue, is an inverse agonist at the μ-opioid receptor (MOR) and as a weak partial agonist at the κ-opioid receptor. Nalmefene hydrochloride is used as treatment for addiction.
naltrexone analogue; inverse agonist at the μ-opioid receptor (MOR) and as a weak partial agonist at the κ-opioid receptor

Pictograms

Skull and crossbonesEnvironment
GHS06,GHS09

Signal Word

Danger

Hazard Statements

H301,H336,H410

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Chronic 1 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0000422160
0000422160
0000389474
0000389469
0000376502

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Karl Mann et al.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology, 26(12), 1941-1949 (2016-11-16)
Nalmefene, a mu- and delta-opioid receptor (MOR, DOR) antagonist and a partial kappa-opioid receptor (KOR) agonist, is approved in the European Union and other countries for the reduction of alcohol consumption in alcohol dependent patients with a high drinking risk
Bernadett I Gál et al.
Frontiers in pharmacology, 10, 1087-1087 (2019-10-16)
Nalmefene is approved for as-needed pharmacological treatment in alcohol use disorder (AUD) by the European Medicines Agency. While the cellular effects of nalmefene have been thoroughly investigated, data are very limited on how this agent influences neural signals associated with
Javier Calleja-Conde et al.
British journal of pharmacology, 173(16), 2490-2505 (2016-05-31)
The opioid antagonist nalmefene (selincro®) was approved for alcohol-related disorders by the European Medicines Agency in 2013. However, there have been no studies regarding the effectiveness of nalmefene when alcohol is used in combination with cocaine. Using operant alcohol self-administration

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