Nalmefene

CAS 55096-26-9C21H25NO3Biochemicals & Reagents

Nalmefene (CAS: 55096-26-9), with the molecular formula C21H25NO3 and a molecular weight of 339.43 g/mol, is a potent opioid antagonist. It functions by blocking the effects of opioids at the receptor level. This compound is primarily recognised for its therapeutic applications in managing opioid overdose and in the treatment of alcohol dependence, acting as a critical tool in addiction medicine and emergency response.

IUPAC: (5α)-17-(Cyclopropylmethyl)-4,5-epoxy-6-methylenemorphinan-3,14-diol

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Nalmefene (C21H25NO3) — chemical structure, CAS 55096-26-9; Life Science, fine chemical supplied by Tech Serve Solutions

BaxterBioactive Small MoleculesBiochemicals and ReagentsCell BiologyGPCR ModulatorsGPCR ProteinsModulators and AntibodiesNeurobiologyNeuroscienceOpioid Antagonists

01 /Applications

Opioid Antagonist Therapy

Nalmefene is clinically used to reverse the effects of opioid overdose, restoring normal respiration. It is also employed in the management of alcohol dependence by reducing cravings and relapse rates.

Research and Development

As a selective opioid receptor antagonist, Nalmefene serves as a valuable research tool in neurobiology and pharmacology to study opioid receptor function and related signaling pathways.

Biochemical Studies

This compound is utilized in biochemical assays and studies involving GPCR modulators, particularly those targeting opioid receptors within cell signaling pathways.

02 /Properties

Molecular weight	339.43
Empirical formula	C21H25NO3
Storage temperature	2-8°C

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	36/37/38
Safety statements (S)	26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

55096-26-9

MDL number

MFCD00133650

05 /Additional specifications

Gene Information	rat ... Oprd1(24613), Oprm1(25601)

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Nalmefene used for?

Nalmefene is used for the treatment of alcohol dependence and opioid overdose.

What is the CAS number and formula for Nalmefene?

The CAS number for Nalmefene is 55096-26-9, and its molecular formula is C21H25NO3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Nalmefene with a molecular weight of 339.43 g/mol. We do not specify USP, BP, or EP grades unless explicitly stated in the product data. For detailed purity information, please refer to the product specifications.

How should Nalmefene be handled safely?

Nalmefene is classified with GHS07 and a 'Warning' signal word, with hazard statements H315, H319, and H335. It requires personal protective equipment including a dust mask (N95), eyeshields, and gloves. Handle in a well-ventilated area and avoid dust formation.

How is Nalmefene packed and shipped?

Nalmefene is typically stored at 2-8°C. Tech Serve Solutions exports fine chemicals globally, adhering to all necessary shipping regulations for laboratory reagents and pharmaceutical intermediates.