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Herbicides

Imazosulfuron

Also known as Brazzos, Takeoff, 1-(2-Chloroimidazo(1,2-a)pyridin-3-ylsulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)urea

CAS 122548-33-8Formula C14H13ClN6O5SMolar mass 412.82 g/molEC 602-788-7
GHS signal word: Warning. Pictograms: Hazardous to the environment 1 supplier listed
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Imazosulfuron chemical structure, C14H13ClN6O5S, CAS 122548-33-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White, crystalline powder
Melting point
178.6 to 180.7
Density
1.652 at 20 °C
Solubility
In water (mg/L at 25 °C), 5 (pH 5.1), 67 (pH 6.1), 308 (pH 7)
HS code
293590
Category
Herbicides
Illustrative photo, off-white crystalline powder with an amber glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Imazosulfuron?

Plain description, key identifiers and synonyms

Imazosulfuron is an imidazopyridine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-(2-chloroimidazo[1,2-a]pyridin-3-yl)sulfonyl-3-(4,6-dimethoxypyrimidin-2-yl)urea
CAS number
122548-33-8 CAS number cross-checked
EC numbers
602-788-7, 682-794-4
Molecular formula
C14H13ClN6O5S
UNII
27LUJ2BJDG
InChIKey
NAGRVUXEKKZNHT-UHFFFAOYSA-N
InChI
InChI=1S/C14H13ClN6O5S/c1-25-9-7-10(26-2)18-13(17-9)19-14(22)20-27(23,24)12-11(15)16-8-5-3-4-6-21(8)12/h3-7H,1-2H3,(H2,17,18,19,20,22)
SMILES (canonical and isomeric)
COC1=CC(=NC(=N1)NC(=O)NS(=O)(=O)C2=C(N=C3N2C=CC=C3)Cl)OC

Synonyms

  • Brazzos
  • Takeoff
  • 1-(2-Chloroimidazo(1,2-a)pyridin-3-ylsulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)urea
  • Imidazo(1,2-a)pyridine-3-sulfonamide, 2-chloro-N-(((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)-
  • 1-(2-chloroimidazo[1,2-a]pyridin-3-yl)sulfonyl-3-(4,6-dimethoxypyrimidin-2-yl)urea
  • TH 913
  • Nagrvuxekkznht-uhfffaoysa-
  • Imidazo(1,2-a)pyridine-3-sulfonamide, 2-chloro-N-(((4,6-dimethoxy- 2-pyrimidinyl)amino)carbonyl)-
  • Imazosulfuron, PESTANAL(R), analytical standard
  • [1,2-a]pyridine-3-sulfonamide, 2-chloro-N-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-
  • 1-(2-chloroimidazo[3,2-a]pyridin-3-yl)sulfonyl-3-(4,6-dimethoxypyrimidin-2-yl)ur
  • 2-chloro-N-[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]imidazo[1,2-a]pyridine-3-sulfonamide
  • N-(2-Chloroimidazo[1,2-a]pyridine-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea
  • 2-Chloro-N-(((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)imidazo(1,2-a)pyridine-3-sulfonamide

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, crystalline powderexp.
Melting point
178.6 to 180.7exp.
Density
1.652 at 20 °Cexp.
Solubility
In water (mg/L at 25 °C), 5 (pH 5.1), 67 (pH 6.1), 308 (pH 7)exp.
Vapour pressure
< 2.63 × 10⁻⁸ mm Hg 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
412.82 g/molcalc.
Exact mass
412.0357 Dacalc.
LogP (octanol/water)
1.31calc.
Topological polar surface area
136.8 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
5calc.
Heavy atoms
27calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.14calc.
Formal charge
0calc.
Stereocentres
0calc.
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=C(Nc1ncccn1)NS(=O)(=O)c1cnc2ccccn12

O=C(Nc1ncccn1)NS(=O)(=O)c1cnc2ccccn12

3 rings, 22 atoms.

2 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (3)
  • P273Avoid release to the environment.
  • 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

Imazosulfuron suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

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  • Valent USA. LLC
    United States, San Ramon ManufacturerUnclaimed profile
    ImazosulfuronGrade, purity and minimum order on request
    Price on request
    View

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Where suppliers are based

1 supplier in 1 country

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Imazosulfuron 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.

Imazosulfuron is used to control most annual and perennial broad-leaved weeds and sedges in paddy rice and turf.

Functional uses

  • Biocide

How it is made

Imazosulfuron is produced by reaction of 2-chloroimidazo[1,2-a]pyridine sulfonylisocyanate with 2-amino-4,6-dimethoxypyrimidine.

Preparation: Y. Ishida et al., European Patent Office patent 238070, eidem, United States of America patent 5017212 (1987, 1991 both to Takeda)

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 Imazosulfuron is traded under.

HS 2935.90Indicative HS code

Sulphonamides, other

World exports in 2024
$5.64B
−11.0% vs 2023, imports $8.56B
2019 to 2024
Top exporters
  1. Ireland43.1%
  2. China12.0%
  3. India * partner reported9.5%
Top importers
  1. United States23.6%
  2. Slovenia19.1%
  3. Spain11.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Imazosulfuron?

Imazosulfuron is an imidazopyridine.

What is the CAS number of Imazosulfuron?

The CAS registry number of Imazosulfuron is 122548-33-8.

What is the molecular formula and weight of Imazosulfuron?

The molecular formula of Imazosulfuron is C14H13ClN6O5S and its molar mass is 412.82 g/mol.

What is Imazosulfuron used for?

Herbicide. Imazosulfuron is used to control most annual and perennial broad-leaved weeds and sedges in paddy rice and turf.

Is Imazosulfuron hazardous?

Imazosulfuron carries the GHS signal word "Warning". Main hazards: 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 Imazosulfuron?

Imazosulfuron is usually classified under HS code 293590 (Sulphonamides, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Imazosulfuron?

CompoundList lists 1 supplier of Imazosulfuron in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Imazosulfuron?

Suppliers quote Imazosulfuron 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 Imazosulfuron

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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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