Enfuvirtide

Drug ingredient

CAS 159519-65-0

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

US productionNot reported

Import value, 2024$114M

Top sourceChina 26%

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 293329 · basket

These shares come from HS customs code 293329, which covers 173 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CN 26%ChinaIN 17%IndiaKR 16%South KoreaDE 9%GermanyIT 9%Italy

Australia
Brazil
Czech Republic
Ireland
Sweden
Ukraine
Poland
United Arab Emirates
Hungary
Israel
Netherlands
Canada
Saudi Arabia
Greece
Belgium
Austria
Latvia
Singapore
Denmark

1 FDA-registered drug labeler

Corden Pharma Colorado, Inc.

Why It Matters

Sectors

Health

Downstream UsesNot recorded

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

CAS159519-65-0

PubChem CID16130199

DTXSIDDTXSID20166672

FormulaC204H301N51O64

Mol. Weight4492 g/mol

SMILESCCC(C)C(C(=O)NC(CCC(=O)O)C(=O)NC(CCC(=O)O)C(=O)NC(CO)C(=O)NC(CCC(=O)N)C(=O)NC(CC(=O)N)C(=O)NC(CCC(=O)N)C(=O)NC(CCC(=O)N)C(=O)NC(CCC(=O)O)C(=O)NC(CCCCN)C(=O)NC(CC(=O)N)C(=O)NC(CCC(=O)O)C(=O)NC(CCC(=O)N)C(=O)NC(CCC(=O)O)C(=O)NC(CC(C)C)C(=O)NC(CC(C)C)C(=O)NC(CCC(=O)O)C(=O)NC(CC(C)C)C(=O)NC(CC(=O)O)C(=O)NC(CCCCN)C(=O)NC(CC1=CNC2=CC=CC=C21)C(=O)NC(C)C(=O)NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC3=CNC4=CC=CC=C43)C(=O)NC(CC(=O)N)C(=O)NC(CC5=CNC6=CC=CC=C65)C(=O)NC(CC7=CC=CC=C7)C(=O)N)NC(=O)C(CC(C)C)NC(=O)C(CO)NC(=O)C(CC8=CN=CN8)NC(=O)C(C(C)CC)NC(=O)C(CC(C)C)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C(CC9=CC=C(C=C9)O)NC(=O)C

Data Sources

PubChem · compound 16130199Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Enfuvirtide (CAS 159519-65-0) https://chemicalindependence.com/chemical/159519-65-0/ PubChem: 16130199. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/16130199 FDA National Drug Code directory: CAS 159519-65-0. 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 293329 for CAS 159519-65-0. Reporting year: 2024. https://usatrade.census.gov/