Norethindrone
Drug ingredientCAS 68-22-4
This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.
Why supply is unknownProduction 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 293723 · basket
These shares come from HS customs code 293723, which covers 29 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Canada
- United Kingdom
- Taiwan
21 FDA-registered drug labelers
Why It Matters
Appears in 13 drug and cosmetic product listings (FDA).
- •Norethindrone
- •Jencycla
- •Nora BE
- •Heather
- •Errin
- •Camila
- •Incassia
- •Nortrel 21 Day
Show all 13
- •Affodel
- •Orquidea
- •Meleya
- •Lyleq
- •Emzahh
Chemical Identity
Data Sources
- PubChem · compound 6230Retrieved 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
Brief citations
Norethindrone (CAS 68-22-4) https://chemicalindependence.com/chemical/68-22-4/ PubChem: 6230. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/6230 FDA National Drug Code directory: CAS 68-22-4. 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 293723 for CAS 68-22-4. Reporting year: 2024. https://usatrade.census.gov/