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Nalmefene

Drug ingredient

CAS 55096-26-9

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 55096-26-9
US productionNot reported
Import value, 2024$50M
Top sourceIndia 37%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293919 · basket

These shares come from HS customs code 293919, which covers 12 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 37%IndiaIT 16%ItalyGB 15%United KingdomDE 10%GermanyDK 10%Denmark
1 FDA-registered drug labeler
SpecGx LLC

Why It Matters

Sectors
Health
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS55096-26-9
PubChem CID5284594
DTXSIDDTXSID8023347
FormulaC21H25NO3
Mol. Weight339.4 g/mol
SMILESC=C1CCC2(C3CC4=C5C2(C1OC5=C(C=C4)O)CCN3CC6CC6)O

Data Sources

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Brief citations

Nalmefene (CAS 55096-26-9) https://chemicalindependence.com/chemical/55096-26-9/ PubChem: 5284594. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5284594 FDA National Drug Code directory: CAS 55096-26-9. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293919 for CAS 55096-26-9. Reporting year: 2024. https://usatrade.census.gov/