equol

Drug ingredient

CAS 531-95-3

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

US productionNot reported

Import value, 2024$3.5B

Top sourceIreland 57%

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 293299 · basket

These shares come from HS customs code 293299, which covers 229 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).

IE 57%IrelandNL 24%NetherlandsCH 8%SwitzerlandCN 5%ChinaIT 2%Italy

United Kingdom
Japan
Germany
Spain
Israel
Canada
Brazil
Vietnam
Ukraine
New Zealand
Belgium
Mexico
Singapore
Taiwan
South Korea
Sweden
South Africa
Egypt
Indonesia
Lithuania
Finland
Hungary
Czech Republic
Hong Kong
Malaysia
Slovakia
Australia
Russia
Jordan
Latvia
Argentina
Slovenia
Malta
Poland
Denmark
Austria

1 FDA-registered drug labeler

Deseret Biologicals, Inc.

Why It Matters

Sectors

Health

Downstream Uses

Appears in 3 drug and cosmetic product listings (FDA).

•Appetite Control
•Prostate
•Menopause Relief

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

$2.56/gA2B Chem LLC

CountryUnited States

Pack$64.00 / 25 g

Purity98%

Vendors28 available

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

27 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$2.76	100 g	98%
AA BLOCKS	United States	$2.84	25 g	98%
Combi-Blocks, Inc.	United States	$2.90	100 g	97%
Angene Chemical	China → Hong Kong	$2.96	100 g	98%
BLD Pharmatech Co., Limited	United States	$3.44	100 g	96%
BLD Pharmatech GmbH	Germany	$3.44	100 g	96%
Ambeed, Inc.	United States	$3.44	100 g	96%
BLD Pharmatech Ltd.	China	$3.56	25 g	96%
AstaTech (2 weeks)	United States	$10.13	100 g	95%
Apollo Scientific UK	United Kingdom	$15.60	5 g	95%
AK Scientific Specialized	United States	$21.00	5 g	95%
AK Scientific, Inc.	United States	$28.00	5 g	98%
Angene International Limited	United States	$39.40	5 g	95%
Fulfilled by Molport	Latvia	$50.00	100 mg	96%
A2B Chem LLC (2 weeks)	United States	$92.80	5 g	98%
AA BLOCKS (2 weeks)	United States	$95.60	5 g	98%
MedKoo Biosciences, Inc	United States	$135.00	10 g	98%
TargetMol Chemicals	China → United States	$980.00	100 mg	99.09%
Molnova	China	$1050.00	200 mg	99%
MedChemExpress MCE	Sweden	$1052.70	200 mg	99.79%
Angene	China → Hong Kong	$4266.67	30 mg	98%
ChemNorm	China	$5850.00	20 mg	98%
Key Organics Ltd.	United Kingdom	$6900.00	10 mg	95%
Cayman Europe	Estonia	$8020.60	50 mg	98%
ChemFaces	China	$30000.00	5 mg	98%
Sigma-Aldrich (Rush Stock)	Germany	$498258.00	5 mg	99%
Sigma-Aldrich	Germany	$498258.00	5 mg	99%

Chemical Identity

CAS531-95-3

PubChem CID91469

DTXSIDDTXSID0022309

FormulaC15H14O3

Mol. Weight242.27 g/mol

SMILESC1C(COC2=C1C=CC(=C2)O)C3=CC=C(C=C3)O

Data Sources

PubChem · compound 91469Retrieved 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

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Brief citations

equol (CAS 531-95-3) https://chemicalindependence.com/chemical/531-95-3/ PubChem: 91469. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/91469 FDA National Drug Code directory: CAS 531-95-3. 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 293299 for CAS 531-95-3. Reporting year: 2024. https://usatrade.census.gov/