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Herbicides

Imazethapyr

Also known as Pursuit, Pivot, Fabian

CAS 81335-77-5Formula C15H19N3O3Molar mass 289.34 g/molEC 617-222-4
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 139 suppliers listed
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Imazethapyr chemical structure, C15H19N3O3, CAS 81335-77-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White to off-white crystalline solid
Melting point
173 °C
Boiling point
180 °C
Density
1.10 to 1.12 at 21 °C
Solubility
In water, 1415 ppm at 25 °C
HS code
293339
Category
Herbicides
Illustrative photo, colourless crystals beside a jumbo bulk bag in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Imazethapyr?

Plain description, key identifiers and synonyms

Imazethapyr is a member of pyridines and an aromatic carboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-ethyl-2-(4-methyl-5-oxo-4-propan-2-yl-1H-imidazol-2-yl)pyridine-3-carboxylic acid
CAS number
81335-77-5 CAS number cross-checked
EC number
617-222-4
Molecular formula
C15H19N3O3
UNII
72T2IN94I4
MDL number
MFCD00274561
InChIKey
XVOKUMIPKHGGTN-UHFFFAOYSA-N
InChI
InChI=1S/C15H19N3O3/c1-5-9-6-10(13(19)20)11(16-7-9)12-17-14(21)15(4,18-12)8(2)3/h6-8H,5H2,1-4H3,(H,19,20)(H,17,18,21)
SMILES (canonical and isomeric)
CCC1=CC(=C(N=C1)C2=NC(C(=O)N2)(C)C(C)C)C(=O)O

Synonyms

  • Pursuit
  • Pivot
  • Fabian
  • CL 263499
  • AC 263,499
  • 3-Pyridinecarboxylic acid, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-
  • (RS)-5-Ethyl-2(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)nicotinic acid
  • (+-)-2-(4,5-Dihydro-4-methyl-4(1-methylethyl)-5-oxo-1H-imidazol-2yl)-5-ethyl-3-pyridinecarboxylic acid
  • 2-(4,5-Dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-5-ethyl-3-pyridinecarboxylic acid
  • 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1h-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acid
  • 3-Pyridinecarboxylic acid, 2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-5-ethyl-
  • 5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)nicotinic acid
  • 5-ethyl-2-(4-methyl-5-oxo-4-propan-2-yl-1H-imidazol-2-yl)pyridine-3-carboxylic acid
  • 5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-1H-imidazol-2-yl)pyridine-3-carboxylic acid
  • 5-ethyl-2-[4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl]pyridine-3-carboxylic acid
  • Pursuit 10
  • (+/-)-Imazethapyr
  • Imazethapyr (Standard)
  • (+/-)-5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-4,5-dihydro-1h-imidazol-2-yl)nicotinic acid
  • Imazethapyr 10 |Ig/mL in Acetonitrile
  • 3-Pyridinecarboxylic acid, 2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-5-ethyl-, (+-)-
  • Imazethapyr 10 microg/mL in Acetonitrile
  • Imazethapyr, PESTANAL(R), analytical standard
  • 5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)nicotinic acid
  • 2-(5-isopropyl-5-methyl-4-oxoimidazolin-2-yl)-5-ethylpyridine-3-carboxylic acid
Show all 27 synonyms
  • 5-Ethyl-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl) nicotinic acid
  • 5-ethyl-2-[(4RS)-4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl]pyridine-3-carboxylic acid

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
White to off-white crystalline solidexp.
Melting point
173 °Cexp.
Boiling point
180 °Cexp.
Density
1.10 to 1.12 at 21 °Cexp.
Solubility
In water, 1415 ppm at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
289.34 g/molcalc.
Exact mass
289.1426 Dacalc.
LogP (octanol/water)
1.63calc.
Topological polar surface area
91.65 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
4calc.
Heavy atoms
21calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.47calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1CN=C(c2ccccn2)N1

O=C1CN=C(c2ccccn2)N1

2 rings, 12 atoms.

41 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H312Harmful in contact with skin.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (8)
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Imazethapyr suppliers

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All 139 suppliers
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Where suppliers are based

139 suppliers in 19 countries

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Imazethapyr price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Herbicide.

Control of many major annual and perennial grass and broad leaved weeds in most major crops ... Applied pre-plant incorporated, pre-emergence, or post-emergence.

Pharmacological actions

  • Herbicides

Functional uses

  • Biocide

How it is made

Imazethapyr is produced by reaction of 2,3- dicarboxymethyl-5-ethylpyridine with 2-aminoamide- 3-methylbutane in the presence of two equivalents of tert-butoxide.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Imazethapyr is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Imazethapyr is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Imazethapyr, based on the data on this page

What is Imazethapyr?

Imazethapyr is a member of pyridines and an aromatic carboxylic acid.

What is the CAS number of Imazethapyr?

The CAS registry number of Imazethapyr is 81335-77-5.

What is the molecular formula and weight of Imazethapyr?

The molecular formula of Imazethapyr is C15H19N3O3 and its molar mass is 289.34 g/mol.

What is Imazethapyr used for?

Herbicide. Control of many major annual and perennial grass and broad leaved weeds in most major crops ... Applied pre-plant incorporated, pre-emergence, or post-emergence.

Is Imazethapyr hazardous?

Imazethapyr carries the GHS signal word "Warning". Main hazards: harmful in contact with skin, very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Imazethapyr?

Imazethapyr is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Imazethapyr?

CompoundList lists 139 suppliers of Imazethapyr in China, United States, Brazil, India and 15 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Imazethapyr in India?

11 suppliers in India list Imazethapyr on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Imazethapyr?

Suppliers quote Imazethapyr on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Imazethapyr

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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