METAXALONE
UNII 1NMA9J598Y

Substance Identification & Data

This profile provides standardized clinical and technical data for Metaxalone, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 1NMA9J598Y.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 1665-48-1 and the RxNorm Concept ID (RxCUI) 59078. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
1NMA9J598Y
CAS Registry Number
1665-48-1
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
METAXALONE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
1NMA9J598Y
The specific atomic composition represented as a molecular structure string.
InChIKey
C12H15NO3
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
IMWZZHHPURKASS-UHFFFAOYSA-N
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.
INN ID
1027
Sequential identifier assigned via the WHO International Nonproprietary Name program.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
C1(NCC(O1)COc2cc(C)cc(c2)C)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Metaxalone. 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.

FDA Official Name

METAXALONE

Common Names & Synonyms

METAXALONE [HSDB]
METAXALONE [INN]
METAXALONE [MART.]
METAXALONE [MI]
METAXALONE [ORANGE BOOK]
METAXALONE [USAN]
METAXALONE [USP MONOGRAPH]
METAXALONE [USP-RS]
METAXALONE [VANDF]
METAXALONE [WHO-DD]

Brand / Trade Names

FLEXURA
SKELAXIN
ZORANE

Systematic Nomenclature

2-OXAZOLIDINONE, 5-((3,5-DIMETHYLPHENOXY)METHYL)-
5-((3,5-XYLYLOXY)METHYL)-2-OXAZOLIDINONE

Technical Codes

AHR-438
NSC-170959

NDC Products Containing METAXALONE

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