Thymol iodide

Drug ingredient

CAS 552-22-7

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

US productionNot reported

Import value, 2024$89M

Top sourceIndia 48%

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 294200 · basket

These shares come from HS customs code 294200, which covers 18 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).

IN 48%IndiaIT 14%ItalyCN 9%ChinaCA 5%CanadaDE 4%Germany

Turkey
Australia
Ireland
Czech Republic
Ukraine
Brazil
Portugal
Hungary
Israel
Russia
Hong Kong
Mexico
South Africa
Bulgaria
Singapore
Poland
Malaysia
Armenia

1 FDA-registered drug labeler

Eskay Speciality Chemicals

Why It Matters

Sectors

Health

Downstream UsesNot recorded

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

$3.80/gA2B Chem LLC

CountryUnited States

Pack$95.00 / 25 g

Purity95%

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$3.80	25 g	95%
AA BLOCKS	United States	$4.52	25 g	95%
Sigma-Aldrich (Rush Stock)	Germany	$11.05	25 g	—
Sigma-Aldrich	Germany	$11.05	25 g	—
MedChemExpress MCE	Sweden	$55.66	1 g	—
Aaron Chemicals LLC	Hong Kong	$124.00	1 g	—
Angene International Limited	United States	$208.00	1 g	98%

Chemical Identity

CAS552-22-7

PubChem CID11088

DTXSIDDTXSID3046081

FormulaC20H24I2O2

Mol. Weight550.2 g/mol

SMILESCC1=CC(=C(C=C1C2=CC(=C(C=C2C)OI)C(C)C)C(C)C)OI

Data Sources

PubChem · compound 11088Retrieved 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

Thymol iodide (CAS 552-22-7) https://chemicalindependence.com/chemical/552-22-7/ PubChem: 11088. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/11088 EPA TSCA Inventory: CAS 552-22-7. 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 294200 for CAS 552-22-7. Reporting year: 2024. https://usatrade.census.gov/