methylnaltrexone bromide
Drug ingredientCAS 73232-52-7
This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
US productionNot reported
Top sourceNo public record
This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.
Why supply is unknownWhere It Comes From
EPA and Census publish no US supply data for this chemical.
7 FDA-registered drug labelers
Noramco, LLC
NURAY CHEMICALS PRIVATE LIMITED
Patheon Inc.
PCAS
Salix Pharmaceuticals, Inc.
SpecGx LLC
STHREE CHEMICALS PRIVATE LIMITED
Why It Matters
Sectors
Health
Downstream Uses
Appears in 1 drug and cosmetic product listings (FDA).
- •Relistor
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Chemical Identity
CAS73232-52-7
PubChem CID5361917
DTXSIDDTXSID30868236
FormulaC21H26BrNO4
Mol. Weight436.3 g/mol
SMILESC[N+]1(CCC23C4C(=O)CCC2(C1CC5=C3C(=C(C=C5)O)O4)O)CC6CC6.[Br-]
Data Sources
- PubChem · compound 5361917Retrieved 2026-04-07
- FDA National Drug Code directoryRetrieved 2026-04-25
- FDA National Drug Code directoryRetrieved 2026-04-07
Brief citations
methylnaltrexone bromide (CAS 73232-52-7) https://chemicalindependence.com/chemical/73232-52-7/ PubChem: 5361917. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5361917 FDA National Drug Code directory: CAS 73232-52-7. 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/