Ascorbyl palmitate

Drug ingredient

CAS 137-66-6

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

US productionNot reported

Import value, 2024$190M

Top sourceChina 73%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

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 293627 · narrow

These shares come from HS customs code 293627, which covers 6 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 73%ChinaGB 20%United KingdomIN 2%IndiaDE 1%GermanyKR 1%South Korea

Japan
Canada
Israel
Switzerland
Taiwan
Poland
Hong Kong
Denmark
Australia
Slovakia
Ukraine
Spain
Mexico
Belgium
Latvia
Italy
Ecuador
Georgia
Malaysia

4 FDA-registered drug labelers

Abhilasha Pharma Pvt. Ltd.

ANUBIS COSMETICS SL

Deseret Biologicals, Inc.

ProBLEN

Why It Matters

Sectors

Health

Downstream Uses

Appears in 6 drug and cosmetic product listings (FDA).

•AnubisMed
•Anubis Barcelona Regul OIl
•Anubis Barcelona Protective Line
•Anubis Barcelona
•Free Radical
•Immune Support

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

CAS137-66-6

PubChem CID54680660

DTXSIDDTXSID3041611

FormulaC22H38O7

Mol. Weight414.5 g/mol

SMILESCCCCCCCCCCCCCCCC(=O)OCC(C1C(=C(C(=O)O1)O)O)O

Data Sources

PubChem · compound 54680660Retrieved 2026-04-07
EPA TSCA InventoryRetrieved 2026-04-24
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Ascorbyl palmitate (CAS 137-66-6) https://chemicalindependence.com/chemical/137-66-6/ PubChem: 54680660. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/54680660 EPA TSCA Inventory: CAS 137-66-6. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293627 for CAS 137-66-6. Reporting year: 2024. https://usatrade.census.gov/