Methoprene

Drug ingredient

CAS 40596-69-8

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

US productionNot reported

Import value, 2024$370M

Top sourceIndia 45%

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 291899 · basket

These shares come from HS customs code 291899, which covers 139 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).

IN 45%IndiaCN 35%ChinaGB 7%United KingdomCO 3%ColombiaCH 3%Switzerland

Austria
Hungary
South Korea
Taiwan
Czech Republic
Mexico
Spain
Ukraine
Estonia
Australia
Israel
Singapore
Slovakia
Russia

1 FDA-registered drug labeler

Welmark International

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

CAS40596-69-8

PubChem CID5366546

DTXSIDDTXSID8032627

FormulaC19H34O3

Mol. Weight310.5 g/mol

SMILESCC(C)OC(=O)C=C(C)C=CCC(C)CCCC(C)(C)OC

Data Sources

PubChem · compound 5366546Retrieved 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

Methoprene (CAS 40596-69-8) https://chemicalindependence.com/chemical/40596-69-8/ PubChem: 5366546. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5366546 FDA National Drug Code directory: CAS 40596-69-8. 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 291899 for CAS 40596-69-8. Reporting year: 2024. https://usatrade.census.gov/