C12H15NO3
221.25 g/mol
APIWarning
Skelaxin
CAS1665-48-1EC216-777-6
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Metaxalone, marketed under the brand name Skelaxin, is a muscle relaxant medication active pharmaceutical ingredient used to relax muscles and relieve pain from musculoskeletal conditions. Its exact mechanism of action is not fully understood, but it is thought to involve general central nervous system depression.
active pharmaceutical ingredient for muscle relaxant formulationsraw material for manufacturing oral muscle relaxant products
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Referencesame scaffold
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Safety Reference
Warning
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for Skelaxin (CAS 1665-48-1) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
5-[(3,5-dimethylphenoxy)methyl]-1,3-oxazolidin-2-one
InChIKey
IMWZZHHPURKASS-UHFFFAOYSA-N
SMILES
CC1=CC(=CC(=C1)OCC2CNC(=O)O2)C
Synonyms (37)
- Metaxalona [INN-Spanish]
- Metaxalone (USP/INN)
- Metaxalone, United States Pharmacopeia (USP)
- Metaxalonum [INN-Latin]
- .meta.Xalone
- CL 39,148
- Flexura
- METAXALONE [MART.]
- Metassalone
- Metaxal
- Metaxalon
- Metaxalona
- Metaxalona [Spanish]
- Metaxalone (Standard)
- Metaxalone, >=98% (HPLC)
- Metaxalonum
- Metaxalonum [Latin]
- Metaxolone
- Metazalone
- Metazolone
- Methaxalonum
- Methoxolone
- Skelaxin
- Skelaxin (TN)
- Zorane
- metaxalone tablet
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