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1-Testosterone

Drug ingredient

CAS 65-06-5

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

Molecular structure of 65-06-5
US productionNot reported
Import value, 2024$154M
Top sourceItaly 60%

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 293729 · basket

These shares come from HS customs code 293729, which covers 57 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IT 60%ItalyES 14%SpainCN 11%ChinaDE 6%GermanyAT 2%Austria
1 FDA-registered drug labeler
ASG Biochem Private Limited

Why It Matters

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

Chemical Identity

CAS65-06-5
PubChem CID236666
DTXSIDDTXSID80215312
FormulaC19H28O2
Mol. Weight288.4 g/mol
SMILESCC12CCC3C(C1CCC2O)CCC4C3(C=CC(=O)C4)C

Data Sources

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Brief citations

1-Testosterone (CAS 65-06-5) https://chemicalindependence.com/chemical/65-06-5/ PubChem: 236666. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/236666 FDA National Drug Code directory: CAS 65-06-5. 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 293729 for CAS 65-06-5. Reporting year: 2024. https://usatrade.census.gov/