Sodium tolyltriazole

CAS 64665-57-2

U.S. production volumes are classified as confidential business information.

Molecular structure of 64665-57-2 — 1 Na⁺

US productionCBI

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

Import value, 2024$1.4B

Top sourceIreland 33%

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. US production volume is confidential. 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 293399 · basket

EPA reports by year

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

These shares come from HS customs code 293399, which covers 518 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 33%IrelandCN 26%ChinaIN 11%IndiaDE 9%GermanyIT 4%Italy

Taiwan
Poland
Canada
Ivory Coast
Greece
Hungary
Indonesia
Latvia
Belgium
Slovakia
Czech Republic
Austria
Netherlands
Finland
Denmark
Croatia
Australia
South Africa
Sweden
Hong Kong
Malta
Singapore
Lithuania
Malaysia
Oman
Serbia

EPA-registered manufacturers (5)

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

Catalynt Solutions

Dober Chemical

Nalco- An Ecolab

Old World Industries

Veolia Wts Usa

Domestic parents -- activity not disclosed (3)

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

Ascent Industries

Chemtreat

Pmc Global

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.

Lanxess

Palmer Holland

Recochem

Why It Matters

Sectors

FoodEnergyWaterTransportationMetals & MiningPlastics & RubberConsumer ProductsPaper & PrintingCore Chemicals

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 13 sectors as 3 functional roles.

•Corrosion inhibitor in All Other Chemical Product and Preparation Manufacturing (100%)Processing—repackaging
•Corrosion inhibitor in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Corrosion inhibitor in Paper Manufacturing (10%)Use—non-incorporative activities
•Corrosion inhibitor in Miscellaneous Manufacturing (1%)Use—non-incorporative activities
•Corrosion inhibitor in Food, beverage, and tobacco product manufacturing (21%)Use—non-incorporative activities
•Corrosion inhibitor in Services (10%)Use—non-incorporative activities
•Corrosion inhibitor in Primary Metal Manufacturing (7%)Use—non-incorporative activities
•Corrosion inhibitor in Utilities (26%)Use—non-incorporative activities
•Corrosion inhibitor in All other Petroleum and Coal Products Manufacturing (8%)Use—non-incorporative activities
•Anti-freeze agent in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
•Corrosion inhibitor in Transportation Equipment Manufacturing (1%)Use—non-incorporative activities
•Corrosion inhibitor in Plastics Material and Resin Manufacturing (8%)Use—non-incorporative activities
•Corrosion inhibitor in Petroleum Lubricating Oil and Grease ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Anti-scaling agent in Utilities (100%)Use—non-incorporative activities

Vendor Pricing

$0.12/gAngene Chemical

CountryChina (registered: Hong Kong)

Pack$61.00 / 500 g

Purity50%

Vendors1 available

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

Chemical Identity

CAS64665-57-2

PubChem CID23687327

DTXSIDDTXSID4028125

FormulaC7H6N3Na

Mol. Weight155.13 g/mol

SMILESCC1=C2C(=CC=C1)[N-]N=N2.[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID4028125Retrieved 2026-04-06
PubChem · compound 23687327Retrieved 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

Sodium tolyltriazole (CAS 64665-57-2) https://chemicalindependence.com/chemical/64665-57-2/ EPA CompTox (DSSTox): DTXSID4028125. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4028125 PubChem: 23687327. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23687327 EPA Chemical Data Reporting: 64665-57-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 64665-57-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293399 for CAS 64665-57-2. Reporting year: 2024. https://usatrade.census.gov/