Ergocalciferol

Drug ingredient

CAS 50-14-6

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

US productionNot reported

Import value, 2024$295M

Top sourceChina 56%

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 293629 · basket

These shares come from HS customs code 293629, which covers 17 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 56%ChinaCH 12%SwitzerlandIN 12%IndiaIT 11%ItalyJP 2%Japan

Spain
Netherlands
Czech Republic
Israel
Guyana
Norway
Australia
Taiwan
Ivory Coast
Honduras
South Korea
Austria
Colombia
Brazil
Mexico
Belgium
South Africa
Turkey
Hong Kong
Chile
Slovenia
Ecuador
Sweden
Vietnam

27 FDA-registered drug labelers

A-S Medication Solutions

Advanced Rx Pharmacy of Tennessee, LLC

Aphena Pharma Solutions - Tennessee, LLC

AvKARE

AvPAK

Banner Pharmacaps Inc.

Bionpharma Inc.

Bryant Ranch Prepack

Catalent Pharma Solutions, LLC

Chartwell RX, LLC

DirectRX

Epic Pharma LLC

Formosa Laboratories, Inc.

Fresenius Kabi USA, LLC

Golden State Medical Supply, Inc.

Northwind Health Company, LLC

NuCare Pharmaceuticals, Inc.

Patheon Softgels Inc.

PD-Rx Pharmaceuticals, Inc.

Preferred Pharmaceuticals Inc.

Professional Complementary Health Formulas

Proficient Rx LP

REMEDYREPACK INC.

St. Mary's Medical Park Pharmacy

Strides Pharma Science Limited

Synthesia, a.s.

Torrent Pharmaceuticals Limited

Why It Matters

Sectors

Health

Downstream Uses

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

•Ergocalciferol
•Vitamin D
•Vitalipid N
•Ergocalciferol Capsules,
•Bone Stim Liquescence 3005
•Ergocalciferol (Vitamin D2)

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

CAS50-14-6

PubChem CID5280793

DTXSIDDTXSID5020233

FormulaC28H44O

Mol. Weight396.6 g/mol

SMILESCC(C)C(C)C=CC(C)C1CCC2C1(CCCC2=CC=C3CC(CCC3=C)O)C

Data Sources

PubChem · compound 5280793Retrieved 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

Ergocalciferol (CAS 50-14-6) https://chemicalindependence.com/chemical/50-14-6/ PubChem: 5280793. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5280793 EPA TSCA Inventory: CAS 50-14-6. 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 293629 for CAS 50-14-6. Reporting year: 2024. https://usatrade.census.gov/