METHYLNALTREXONE
UNII 0RK7M7IABE

Substance Identification & Data

This profile provides standardized clinical and technical data for Methylnaltrexone, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 0RK7M7IABE.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 916055-93-1 and the RxNorm Concept ID (RxCUI) 29899. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
0RK7M7IABE
CAS Registry Number
916055-93-1
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
METHYLNALTREXONE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
0RK7M7IABE
The specific atomic composition represented as a molecular structure string.
InChIKey
C21H26NO4
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
JVLBPIPGETUEET-WIXLDOGYSA-O
Line notation for describing the chemical structure and connectivity of atoms.
NCI Thesaurus
National Cancer Institute reference terminology for clinical and research data.
PubChem CID
Unique identification number in the NCBI database of chemical substances.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
[C@]123[C@@]4([C@]([H])([N@+](CC1)(CC5CC5)C)Cc6c2c(c(O)cc6)O[C@]3(C(CC4)=O)[H])O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Methylnaltrexone. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.

Common Names & Synonyms

METHYLNALTREXONE
METHYLNALTREXONE [MI]
METHYLNALTREXONE [VANDF]
METHYLNALTREXONE [WHO-DD]
METHYLNALTREXONE CATION
METHYLNALTREXONE ION
MNTX

Systematic Nomenclature

(5.ALPHA.)-17-(CYCLOPROPYLMETHYL)-3,14-DIHYDROXY-17-METHYL-4,5-EPOXYMORPHINAN-17-IUM-6-ONE
MORPHINAN-17-IUM-6-ONE, 17-(CYCLOPROPYLMETHYL)-4,5-EPOXY-3,14-DIHYDROXY-17-METHYL-, (5.ALPHA.)-
MORPHINAN-17-IUM-6-ONE, 17-(CYCLOPROPYLMETHYL)-4,5-EPOXY-3,14-DIHYDROXY-17-METHYL-, (5.ALPHA.,17R)-
MORPHINANIUM, 17-(CYCLOPROPYLMETHYL)-4,5-EPOXY-3,14-DIHYDROXY-17-METHYL-6-OXO-, (5.ALPHA.)-

Technical Codes

MRZ-2663

NDC Products Containing METHYLNALTREXONE

This unique ingredient identifier is listed as an ingredient or substance in the following products in the NDC directory: