caffeic acid

Drug ingredient

CAS 501-16-6

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

US productionNot reported

Top sourceNo public record

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

2 FDA-registered drug labelers

Deseret Biologicals, Inc.

Energique, Inc.

Why It Matters

Sectors

Health

Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

•Multi-Phenolic
•Caffeic Acid

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

Vendor Pricing

$0.14/gAA BLOCKS

CountryUnited States

Pack$72.00 / 500 g

Purity98%

Vendors4 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

3 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$0.16	1 kg	98%
TargetMol Chemicals	China → United States	$290.00	100 mg	99.99%
Apexbio Technology LLC	United States	$785.00	200 mg	98.7%

Chemical Identity

CAS501-16-6

PubChem CID689043

DTXSIDDTXSID901316055

FormulaC9H8O4

Mol. Weight180.16 g/mol

SMILESC1=CC(=C(C=C1C=CC(=O)O)O)O

Data Sources

PubChem · compound 689043Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07

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Brief citations

caffeic acid (CAS 501-16-6) https://chemicalindependence.com/chemical/501-16-6/ PubChem: 689043. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/689043 FDA National Drug Code directory: CAS 501-16-6. 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/