Bronopol

CAS 52-51-7

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

US productionZero

Import value, 2024$26M

Import volumeCBI

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

Top sourceChina 27%

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 290559 · basket

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 290559, which covers 71 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 27%ChinaJP 25%JapanIL 20%IsraelKR 15%South KoreaIN 4%India

Norway
Ukraine
Austria
Slovakia
Liechtenstein
Sweden
Belgium
Mexico
Russia
Italy
Netherlands

Domestic parents -- activity not disclosed (2)

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

Icl Specialty Products North America

Polyventive

EPA-registered importers (3)

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

Azelis Sa · LU Luxembourg

Azelis Us Holding

Lanxess

Why It Matters

Sectors

Plastics & RubberConsumer ProductsPaints & Coatings

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

Used in 3 sectors as 3 functional roles.

•Anti-adhesive/cohesive in Rubber Product Manufacturing (40%)Processing—incorporation into formulation, mixture, or reaction product
•Pigment in Paint and Coating Manufacturing (60%)Processing—incorporation into formulation, mixture, or reaction product
•Preservative in Wholesale and Retail Trade (0%)Not Known or Reasonably Ascertainable

Vendor Pricing

$0.32/gMedChemExpress MCE

CountrySweden

Pack$159.72 / 500 g

Purity98%

Vendors12 available

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

11 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$0.36	500 g	98%
AK Scientific Specialized	United States	$0.48	250 g	95%
Fluorochem UK	United Kingdom	$0.72	500 g	98%
AK Scientific, Inc.	United States	$0.75	250 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$1.19	100 g	98%
Sigma-Aldrich	Germany	$1.19	100 g	98%
Molnova	China	$285.00	200 mg	99%
Labotest KG	Germany	$453.00	1000 mg	90%
Otava, Ltd.	Ukraine	$460.00	250 mg	95%
Key Organics Ltd.	United Kingdom	$6900.00	10 mg	98%
TimTec, LLC	United States	$9333.33	30 mg	90%

Chemical Identity

CAS52-51-7

PubChem CID2450

DTXSIDDTXSID8024652

FormulaC3H6BrNO4

Mol. Weight199.99 g/mol

SMILESC(C(CO)([N+](=O)[O-])Br)O

Data Sources

EPA CompTox (DSSTox) · DTXSID8024652Retrieved 2026-04-06
PubChem · compound 2450Retrieved 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

Bronopol (CAS 52-51-7) https://chemicalindependence.com/chemical/52-51-7/ EPA CompTox (DSSTox): DTXSID8024652. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8024652 PubChem: 2450. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/2450 EPA Chemical Data Reporting: 52-51-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 52-51-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290559 for CAS 52-51-7. Reporting year: 2024. https://usatrade.census.gov/