Sulfadimethoxine

Drug ingredient

CAS 122-11-2

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

US productionNot reported

Import value, 2024$2.0B

Top sourceIreland 63%

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 293590 · basket

These shares come from HS customs code 293590, which covers 182 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 63%IrelandSG 14%SingaporeIN 7%IndiaCN 7%ChinaCH 2%Switzerland

Portugal
Spain
Italy
Austria
Israel
Hungary
Canada
South Korea
Netherlands
Finland
Poland
Indonesia
Ukraine
Mexico
South Africa
Croatia
Greece
Taiwan
Hong Kong

4 FDA-registered drug labelers

Hunan Wugan Pharmaceutical Co., Ltd.

JIANGSU TIANHE PHARMACEUTICAL CO., LTD.

Valens Molecules Private Limited

zhejiang jiuzhou pharmaceutical Co., Ltd.

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

$0.72/gCombi-Blocks, Inc.

CountryUnited States

Pack$360.00 / 500 g

Purity98%

Vendors29 available

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

28 more vendors

Vendor	Country	$/g	Pack	Purity
BLD Pharmatech Co., Limited	United States	$0.84	500 g	98%
BLD Pharmatech GmbH	Germany	$0.84	500 g	98%
BLD Pharmatech Ltd.	China	$0.84	500 g	98%
Ambeed, Inc.	United States	$0.84	500 g	98%
A2B Chem LLC	United States	$0.86	100 g	98%
Aaron Chemicals LLC	Hong Kong	$0.87	500 g	98%
Angene Chemical	China → Hong Kong	$0.93	500 g	98%
AA BLOCKS	United States	$0.95	500 g	98%
AK Scientific Specialized	United States	$1.24	100 g	95%
AstaTech (2 weeks)	United States	$1.59	500 g	98%
AK Scientific, Inc.	United States	$1.66	100 g	98%
Cayman Europe	Estonia	$3.45	50 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$3.88	100 g	98%
Sigma-Aldrich	Germany	$3.88	100 g	98%
MedChemExpress MCE	Sweden	$17.42	5 g	99.1%
MedKoo Biosciences, Inc	United States	$45.00	10 g	98%
Molnova	China	$130.00	500 mg	99%
TargetMol Chemicals	China → United States	$145.00	200 mg	99.84%
Angene International Limited	United States	$188.00	1 g	99%
Labotest KG	Germany	$217.80	5000 mg	90%
Vitas M Chemical Limited	Hong Kong	$238.00	1 g	90%
Apexbio Technology LLC	United States	$1000.00	50 mg	99.89%
ChemBridge Corporation	Kazakhstan	$1860.00	100 mg	90%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
ChemDiv, Inc.	United States	$4070.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	98%
Asinex	Netherlands	$6461.40	100 mg	90%
TimTec, LLC	United States	$14666.67	30 mg	90%

Chemical Identity

CAS122-11-2

PubChem CID5323

DTXSIDDTXSID1023607

FormulaC12H14N4O4S

Mol. Weight310.33 g/mol

SMILESCOC1=NC(=NC(=C1)NS(=O)(=O)C2=CC=C(C=C2)N)OC

Data Sources

PubChem · compound 5323Retrieved 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

Sulfadimethoxine (CAS 122-11-2) https://chemicalindependence.com/chemical/122-11-2/ PubChem: 5323. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5323 FDA National Drug Code directory: CAS 122-11-2. 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 293590 for CAS 122-11-2. Reporting year: 2024. https://usatrade.census.gov/