Amitrole

Drug ingredient

CAS 61-82-5

This drug ingredient has classified U.S. production volumes. EPA withholds the number as confidential business information.

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

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

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.

Emd Holding

1 FDA-registered drug labeler

Professional Complementary Health Formulas

Why It Matters

Sectors

HealthCore Chemicals

Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

•Nitrogen Combination 9310

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

•Corrosion inhibitor in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS61-82-5

PubChem CID1639

DTXSIDDTXSID0020076

FormulaC2H4N4

Mol. Weight84.08 g/mol

SMILESC1=NNC(=N1)N

Data Sources

PubChem · compound 1639Retrieved 2026-04-07
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Amitrole (CAS 61-82-5) https://chemicalindependence.com/chemical/61-82-5/ PubChem: 1639. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/1639 EPA Chemical Data Reporting: 61-82-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293399 for CAS 61-82-5. Reporting year: 2024. https://usatrade.census.gov/