Thiabendazole

Drug ingredient

CAS 148-79-8

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

US productionNot reported

Import value, 2024$447M

Top sourceChina 31%

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 293410 · basket

These shares come from HS customs code 293410, which covers 83 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 31%ChinaDE 25%GermanyMX 19%MexicoJP 13%JapanIN 5%India

United Kingdom
Italy
Ukraine
Spain
Netherlands
Poland
Belgium
Canada
Croatia
Bulgaria
Taiwan
Sweden
Slovakia
Slovenia

1 FDA-registered drug labeler

Cohance Lifesciences Limited

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

$0.34/gA2B Chem LLC

CountryUnited States

Pack$344.00 / 1 kg

Purity98%

Vendors21 available

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

20 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.36	1 kg	98%
AK Scientific Specialized	United States	$0.91	100 g	95%
AK Scientific, Inc.	United States	$1.25	100 g	99%
Cayman Europe	Estonia	$1.59	500 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$1.67	500 g	99%
Sigma-Aldrich	Germany	$1.67	500 g	99%
Combi-Blocks, Inc.	United States	$1.80	100 g	98%
Fulfilled by Molport	Latvia	$10.00	1 g	95%
MedChemExpress MCE	Sweden	$12.58	5 g	99.94%
Apexbio Technology LLC	United States	$14.00	5 g	99.72%
MedKoo Biosciences, Inc	United States	$27.50	20 g	98%
TargetMol Chemicals	China → United States	$29.00	1 g	99.94%
Molnova	China	$48.00	1 g	99%
Labotest KG	Germany	$217.80	5000 mg	90%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%
Asinex	Netherlands	$6461.40	100 mg	90%
ChemDiv, Inc.	United States	$11300.00	10 mg	90%
TimTec, LLC	United States	$14666.67	30 mg	90%
ChemBridge Corporation (rush stock)	United States	$18600.00	5 mg	90%

Chemical Identity

CAS148-79-8

PubChem CID5430

DTXSIDDTXSID0021337

FormulaC10H7N3S

Mol. Weight201.25 g/mol

SMILESC1=CC=C2C(=C1)NC(=N2)C3=CSC=N3

Data Sources

PubChem · compound 5430Retrieved 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

Thiabendazole (CAS 148-79-8) https://chemicalindependence.com/chemical/148-79-8/ PubChem: 5430. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5430 EPA TSCA Inventory: CAS 148-79-8. 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 293410 for CAS 148-79-8. Reporting year: 2024. https://usatrade.census.gov/