CHEBI:82021 - imazapyr

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ChEBI Name imazapyr
Definition A racemate comprising equimolar amounts of (R)- and (S)-imazapyr. An inhibitor of acetohydroxyacid synthase, it is used (generally as the isopropylamine salt, known as imazapyr-isopropylammonium) as a herbicide, particularly for the control of perennial grasses, broad-leaved weeds, woody plants, brambles, etc., on non-crop land. It is not approved for use within the European Union.
Stars This entity has been manually annotated by the ChEBI Team.
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Formula C13H15N3O3
Net Charge 0
Average Mass 261.277
Monoisotopic Mass 261.111
Roles Classification
Biological Role(s): EC (acetolactate synthase) inhibitor
An EC 2.2.1.* (transketolase/transaldolase) inhibitor that interferes with the action of acetolactate synthase (EC
Application(s): herbicide
A substance used to destroy plant pests.
EC (acetolactate synthase) inhibitor
An EC 2.2.1.* (transketolase/transaldolase) inhibitor that interferes with the action of acetolactate synthase (EC
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ChEBI Ontology
Outgoing imazapyr (CHEBI:82021) has part (R)-imazapyr (CHEBI:133188)
imazapyr (CHEBI:82021) has part (S)-imazapyr (CHEBI:133189)
imazapyr (CHEBI:82021) has role EC (acetolactate synthase) inhibitor (CHEBI:22180)
imazapyr (CHEBI:82021) has role herbicide (CHEBI:24527)
imazapyr (CHEBI:82021) is a racemate (CHEBI:60911)
rac-2-(4-isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)nicotinic acid
Synonyms Sources
(±)-2-(4-isopropyl-4-methyl-5-oxo-2-iidazolin-2-yl)nicotinic acid ChEBI
(±)-imazapyr ChemIDplus
(+-)-imazapyr ChemIDplus
2-[(RS)-4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl]nicotinic acid Alan Wood's Pesticides
2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-pyridinecarboxylic acid Alan Wood's Pesticides
rac-2-[(4R)-4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl]pyridine-3-carboxylic acid Alan Wood's Pesticides
Manual Xrefs Databases
EP0041623 Patent
imazapyr Alan Wood's Pesticides
Imazapyr Wikipedia
US4798619 Patent
View more database links
Registry Numbers Types Sources
81334-34-1 CAS Registry Number Alan Wood's Pesticides
81334-34-1 CAS Registry Number ChemIDplus
9269102 Reaxys Registry Number Reaxys
Citations Waiting for Citations Types Sources
24108543 PubMed citation Europe PMC
25035913 PubMed citation Europe PMC
25159042 PubMed citation Europe PMC
25827499 PubMed citation Europe PMC
Last Modified
08 September 2016