Diuron

CAS 330-54-1

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$28M

Import volumeCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceIsrael 32%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 292421 · basket

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Zero · Imports 39.9K lb

These shares come from HS customs code 292421, which covers 26 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).

IL 32%IsraelCN 19%ChinaCH 11%SwitzerlandIN 11%IndiaDE 9%Germany

South Korea
Spain
Singapore
Ukraine
Italy
Poland
Hong Kong

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Composites One

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Alzchem

The Sherwin Williams

Why It Matters

Sectors

Plastics & Rubber

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

Industrial Uses

•Catalyst in Plastics Material and Resin Manufacturing (80%)Processing as a reactant

Vendor Pricing

$0.18/gA2B Chem LLC

CountryUnited States

Pack$90.00 / 500 g

Purity98%

Vendors18 available

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

17 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.23	500 g	99%
Combi-Blocks, Inc.	United States	$0.35	1 kg	98%
ALFA AESAR	Germany	$0.84	250 g	97%
AK Scientific, Inc.	United States	$0.90	100 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$0.94	100 g	98%
Sigma-Aldrich	Germany	$0.94	100 g	98%
MedChemExpress MCE	Sweden	$15.61	10 g	99.08%
MedKoo Biosciences, Inc	United States	$18.00	25 g	98%
TargetMol Chemicals	China → United States	$31.00	1 g	99.68%
Apexbio Technology LLC	United States	$77.00	1 g	99.82%
AK Scientific Specialized	United States	$180.00	500 mg	99%
Labotest KG	Germany	$453.00	1000 mg	90%
Cayman Europe	Estonia	$1582.70	100 mg	98%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%
ChemBridge Corporation	Kazakhstan	$9000.00	25 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS330-54-1

PubChem CID3120

DTXSIDDTXSID0020446

FormulaC9H10Cl2N2O

Mol. Weight233.09 g/mol

SMILESCN(C)C(=O)NC1=CC(=C(C=C1)Cl)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID0020446Retrieved 2026-04-06
PubChem · compound 3120Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Diuron (CAS 330-54-1) https://chemicalindependence.com/chemical/330-54-1/ EPA CompTox (DSSTox): DTXSID0020446. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0020446 PubChem: 3120. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/3120 EPA Chemical Data Reporting: 330-54-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 330-54-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292421 for CAS 330-54-1. Reporting year: 2024. https://usatrade.census.gov/