Methylnaltrexone Bromide

Name: Methylnaltrexone Bromide
Brand: Zemixal
SKU: ZX-033894

Reference StandardAvailable on request

Methylnaltrexone Bromide (CAS 73232-52-7) supplier Zemixal: C21H26BrNO4, COA and SDS with every lot, worldwide shipping.

Pack sizes

Methylnaltrexone Bromide chemical structure

CAS number73232-52-7

FormulaC₂₁H₂₆BrNO₄

Molar mass436.3 g/mol

Physical formSolid

HS code38229090

InChIKeyIFGIYSGOEZJNBE-KNLJMPJLSA-N

IUPAC name(4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-3-methyl-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium-7-one bromide

About Methylnaltrexone Bromide

Methylnaltrexone Bromide is supplied by Zemixal as a characterised reference material for Naltrexone analysis. For your records (Reference Standard), the material is defined by CAS 73232-52-7, formula C21H26BrNO4 and molar mass 436.3 g/mol. It is handled as a solid.

Use cases we see most often

Identification & assay
Method development & validation
QC reference material
Fine chemical synthesis

Storage and safety notes

Classified under GHS with signal word Danger and hazard statements H301, H302, H312 and H317. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

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Typical uses

Identification & assay
Method development & validation
QC reference material
Fine chemical synthesis

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Methylnaltrexone Bromide
Product name	Methylnaltrexone Bromide
Catalogue number	ZX-033894
CAS number	73232-52-7
IUPAC name	(4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-3-methyl-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium-7-one bromide
Molecular formula	C₂₁H₂₆BrNO₄
Molar mass	436.3 g/mol
Exact mass	435.1045
Grade	Reference Standard
Physical form	Solid
H-bond donors / acceptors	2 / 5
Topological polar surface area	66.8 Å²
HS code	38229090
InChIKey	IFGIYSGOEZJNBE-KNLJMPJLSA-N
SMILES	C[N+]1(CC[C@]23[C@@H]4C(=O)CC[C@]2([C@H]1CC5=C3C(=C(C=C5)O)O4)O)CC6CC6.[Br-]
PubChem CID	5361917
Synonyms	N-Methylnaltrexone Bromide, Naltrexone methobromide, MRZ-2663BR, MOA-728, bromuro de metilnaltrexona, bromure de methylnaltrexone, methylnaltrexoni bromidum, N-Methyl Naltrexone Bromide, MRZ 2663BR, Naltrexone Methyl Bromide

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Acute toxicity

Irritant or harmful

Health hazard

Hazardous to the environment

Signal word Danger

H301Toxic if swallowed
H302Harmful if swallowed
H312Harmful in contact with skin
H317May cause an allergic skin reaction
H332Harmful if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H400Very toxic to aquatic life

Precautionary statements P233, P260, P261, P264, P270, P271, P272, P273, P280, P284, P301 + P316, P301 + P317, P302 + P352, P304 + P340, P317, P321, P330, P333 + P317, P342 + P316, P362 + P364, P391, P403, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Methylnaltrexone Bromide
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Methylnaltrexone Bromide

Which CAS number identifies Methylnaltrexone Bromide?

Methylnaltrexone Bromide is registered under CAS 73232-52-7. You may also see it listed as N-Methylnaltrexone Bromide, Naltrexone methobromide, MRZ-2663BR. Our catalogue number for this item is ZX-033894.

What are the formula and molar mass of Methylnaltrexone Bromide?

For Methylnaltrexone Bromide, its formula is C21H26BrNO4 and its molar mass is 436.3 g/mol. The systematic (IUPAC) name is (4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-3-methyl-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-3-ium-7-one bromide. InChIKey IFGIYSGOEZJNBE-KNLJMPJLSA-N lets you match it in any structure database.

How is Methylnaltrexone Bromide used in pharmaceutical QC?

Methylnaltrexone Bromide is a characterised reference material linked to Naltrexone. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Methylnaltrexone Bromide?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Methylnaltrexone Bromide?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Methylnaltrexone Bromide to my country?

Yes. Because Methylnaltrexone Bromide is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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