Methylnaltrexone (Bromide)

Modify Date: 2026-08-14 11:11:10

Methylnaltrexone (Bromide) Structure
Methylnaltrexone (Bromide) structure
Common Name Methylnaltrexone (Bromide)
CAS Number 73232-52-7 Molecular Weight 436.33900
Density N/A Boiling Point N/A
Molecular Formula C21H26BrNO4 Melting Point 237-239ºC
MSDS Chinese USA Flash Point N/A
Symbol GHS06 GHS09
GHS06, GHS09
Signal Word Danger

 Names

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]isoquinoline-3-ium-7-one,bromide
Synonym More Synonyms

 Chemical & Physical Properties

Melting Point 237-239ºC
Molecular Formula C21H26BrNO4
Molecular Weight 436.33900
Exact Mass 435.10500
PSA 69.59000
LogP 3.02510
InChIKey IFGIYSGOEZJNBE-UHFFFAOYSA-N
SMILES C[N+]1(CC2CC2)CCC23c4c5ccc(O)c4OC2C(=O)CCC3(O)C1C5.[Br-]

 Safety Information

Symbol GHS06 GHS09
GHS06, GHS09
Signal Word Danger
Hazard Statements H301-H400
Precautionary Statements P273-P301 + P310
RIDADR UN 2811 6.1 / PGIII
RTECS QD0188550

 Synthetic Route

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Methylnaltrexone (Bromide) Structure

Methylnaltrexon...

CAS#:73232-52-7

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Literature: EP2147920 A2, ; Page/Page column 25 ;

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Methylnaltrexone (Bromide) Structure

Methylnaltrexon...

CAS#:73232-52-7

Learn More
Literature: US2008/214817 A1, ; Page/Page column 2; 6-7 ;

~%

Methylnaltrexone (Bromide) Structure

Methylnaltrexon...

CAS#:73232-52-7

Learn More
Literature: US2010/168427 A1, ; Page/Page column 4 ;

 Articles37

More Articles
Efficacy of pharmacological therapies for the treatment of opioid-induced constipation: systematic review and meta-analysis.

Am. J. Gastroenterol. 108(10) , 1566-74; quiz 1575, (2013)

There has been no definitive synthesis of the evidence for any benefit of available pharmacological therapies in opioid-induced constipation (OIC). We conducted a systematic review and meta-analysis t...

[Opiate induced constipation--mechanisms, relevance and treatment].

Dtsch. Med. Wochenschr. 138(43) , 2207-11, (2013)

Effects of remifentanil on the esophagogastric junction and swallowing.

Acta Anaesthesiol. Scand. 57(8) , 1002-9, (2013)

A recent study demonstrated that reflux is associated with impaired pressure augmentation in the esophagogastric junction (EGJ), caused by diaphragmal contractions during inspiration. It is unknown wh...

 Methylnaltrexone (Bromide)Bioassay

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Name: Half life in human liver microsomes at 3 uM
Source: ChEMBL
Target: N/A
External Id: CHEMBL4411125
Name: Liver toxicity in human assessed as induction of drug-induced liver injury by measuri...
Source: ChEMBL
Target: Homo sapiens
External Id: CHEMBL4029349
Name: Permeability coefficient, Kp in human Caco2 cells
Source: ChEMBL
Target: N/A
External Id: CHEMBL4411126
Name: Liver toxicity in human assessed as induction of drug-induced liver injury by measuri...
Source: ChEMBL
Target: Homo sapiens
External Id: CHEMBL4029350
Name: Displacement of [3H]-DADLE from recombinant human delta-opioid receptor expressed in ...
Source: ChEMBL
Target: Delta-type opioid receptor
External Id: CHEMBL4310615
Name: Displacement of [3H]-DAMGO from recombinant human mu-opioid receptor expressed in CHO...
Source: ChEMBL
Target: Mu-type opioid receptor
External Id: CHEMBL4310614
Name: Oral bioavailability in human
Source: ChEMBL
Target: N/A
External Id: CHEMBL4411162
Name: AUC(0 to t) in Sprague-Dawley rat at 100 mg/kg, po administered via gavage
Source: ChEMBL
Target: N/A
External Id: CHEMBL4411131
Name: Antagonist activity at delta-opioid receptor (unknown origin) by [35S]-GTPgammaS bind...
Source: ChEMBL
Target: Delta-type opioid receptor
External Id: CHEMBL4310626
Name: Antagonist activity at mu-opioid receptor (unknown origin) by [35S]-GTPgammaS binding...
Source: ChEMBL
Target: Mu-type opioid receptor
External Id: CHEMBL4310625
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 Synonyms

[14C]-N-Methylnaltrexone bromide
MNTX bromide
Naltrexone methobromide
(-)-naltrexone methyl bromide
Relistor
Methylnaltrexone (Bromide)
MRZ-2663BR
MOA-728
Relistor (TN)
MNTX
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