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Imazapyr

CAS 81334-34-1

Molecular structure of 81334-34-1
US productionNot reported
Import value, 2024$1.3B
Top sourceChina 32%

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 293339 · basket

These shares come from HS customs code 293339, which covers 397 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 32%ChinaIN 15%IndiaDE 10%GermanyBE 9%BelgiumCH 8%Switzerland

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS81334-34-1
PubChem CIDNot recorded
DTXSIDDTXSID8034665
FormulaC13H15N3O3
Mol. Weight261.281 g/mol
SMILESCC(C)C1(C)N=C(NC1=O)C1=NC=CC=C1C(O)=O

Data Sources

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Brief citations

Imazapyr (CAS 81334-34-1) https://chemicalindependence.com/chemical/81334-34-1/ EPA CompTox (DSSTox): 81334-34-1. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8034665 US Census international trade: HS 293339 for CAS 81334-34-1. Reporting year: 2024. https://usatrade.census.gov/