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Fosnetupitant

Drug ingredient

CAS 1703748-89-3

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

Molecular structure of 1703748-89-3
US productionNot reported
Import value, 2024$7.6B
Top sourceIreland 61%

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 293359 · basket

These shares come from HS customs code 293359, which covers 295 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 61%IrelandCH 30%SwitzerlandGB 2%United KingdomCN 2%ChinaIN 1%India
1 FDA-registered drug labeler
Helsinn Therapeutics (U.S.), Inc.

Why It Matters

Sectors
Health
Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

  • •Akynzeo
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS1703748-89-3
PubChem CID71544786
DTXSIDDTXSID601027641
FormulaC31H35F6N4O5P
Mol. Weight688.6 g/mol
SMILESCC1=CC=CC=C1C2=CC(=NC=C2N(C)C(=O)C(C)(C)C3=CC(=CC(=C3)C(F)(F)F)C(F)(F)F)N4CC[N+](CC4)(C)COP(=O)(O)[O-]

Data Sources

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Brief citations

Fosnetupitant (CAS 1703748-89-3) https://chemicalindependence.com/chemical/1703748-89-3/ PubChem: 71544786. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/71544786 FDA National Drug Code directory: CAS 1703748-89-3. 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 293359 for CAS 1703748-89-3. Reporting year: 2024. https://usatrade.census.gov/