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Herbicides

Flazasulfuron

Also known as Shibagen, 1-(4,6-Dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl)urea, N-(((4,6-Dimethoxy-2-pyrimidinyl)amino)carbonyl)-3-(trifluoromethyl)-2-pyridinesulfonamide

CAS 104040-78-0Formula C13H12F3N5O5SMolar mass 407.33 g/molEC 600-514-0
GHS signal word: Warning. Pictograms: Hazardous to the environment 16 suppliers listed
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Flazasulfuron chemical structure, C13H12F3N5O5S, CAS 104040-78-0
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White, crystalline solid
Melting point
164 to 166
Density
1.606 at 20 °C
Solubility
In water, 4.1 ppm (pH 1)
HS code
293590
Category
Herbicides
Illustrative photo, colourless crystals in an open fibre drum in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Flazasulfuron?

Plain description, key identifiers and synonyms

Flazasulfuron is a member of pyridines and a sulfonamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-(4,6-dimethoxypyrimidin-2-yl)-3-[[3-(trifluoromethyl)-2-pyridinyl]sulfonyl]urea
CAS number
104040-78-0 CAS number cross-checked
EC number
600-514-0
Molecular formula
C13H12F3N5O5S
UNII
3SB13WWV30
MDL number
MFCD00274594
InChIKey
HWATZEJQIXKWQS-UHFFFAOYSA-N
InChI
InChI=1S/C13H12F3N5O5S/c1-25-8-6-9(26-2)19-11(18-8)20-12(22)21-27(23,24)10-7(13(14,15)16)4-3-5-17-10/h3-6H,1-2H3,(H2,18,19,20,21,22)
SMILES (canonical and isomeric)
COC1=CC(=NC(=N1)NC(=O)NS(=O)(=O)C2=C(C=CC=N2)C(F)(F)F)OC

Synonyms

  • Shibagen
  • 1-(4,6-Dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl)urea
  • N-(((4,6-Dimethoxy-2-pyrimidinyl)amino)carbonyl)-3-(trifluoromethyl)-2-pyridinesulfonamide
  • 2-Pyridinesulfonamide, N-(((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)-3-(trifluoromethyl)-
  • n-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-3-(trifluoromethyl)-2-pyridinesulfonamide
  • 1-(4,6-dimethoxypyrimidin-2-yl)-3-[3-(trifluoromethyl)pyridin-2-yl]sulfonylurea
  • N-((4,6-dimethoxypyrimidin-2-yl)carbamoyl)-3-(trifluoromethyl)pyridine-2-sulfonamide
  • 1-(4,6-dimethoxy-2-pyrimidinyl)-3-[[3-(trifluoromethyl)-2-pyridinyl]sulfonyl]urea
  • N-[(4,6-Dimethoxypyrimidin-2-yl)carbamoyl]-3-(trifluoromethyl)pyridine-2-sulfonamide
  • Katana
  • 1-(4,6-dimethoxypyrimidin-2-yl)-3-[[3-(trifluoromethyl)-2-pyridyl]sulfonyl]urea
  • Flazasulfuron 100 microg/mL in Acetonitrile
  • Flazasulfuron, PESTANAL(R), analytical standard
  • Flazasulfuron, 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-trifluoromethyl-2-pyridylsulfonyl)urea

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 solidexp.
Odour
Odorlessexp.
Melting point
164 to 166exp.
Density
1.606 at 20 °Cexp.
Solubility
In water, 4.1 ppm (pH 1)exp.
Vapour pressure
VP: 3.1 × 10⁻⁸ mm Hgexp.

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
407.33 g/molcalc.
Exact mass
407.0511 Dacalc.
LogP (octanol/water)
1.42calc.
Topological polar surface area
132.4 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
5calc.
Heavy atoms
27calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.23calc.
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)c1ccccn1

O=C(Nc1ncccn1)NS(=O)(=O)c1ccccn1

2 rings, 19 atoms.

13 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

Flazasulfuron suppliers

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

All 16 suppliers
16 of 16 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

16 suppliers in 8 countries

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Flazasulfuron price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Herbicide.

Flazasulfuron is registered for use on non-residential areas including golf courses and non-residential turf areas such as industrial parks, tank farms, sod farms, seed farms, sports fields and commercial lawns.

Flazasulfuron is (used) for control of annual and perennial grasses, sedges, and broadleaf weeds.

Use classes: Pesticides, Herbicides.

Functional uses

  • Biocide

How it is made

Flazasulfuron is produced by reaction of 2-sulfamoylchloride-3-trifluoromethylpyridine with 2-amino-4,6-dimethoxypyrimidine.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 016-085-00-2

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Flazasulfuron 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 Flazasulfuron is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Flazasulfuron?

Flazasulfuron is a member of pyridines and a sulfonamide.

What is the CAS number of Flazasulfuron?

The CAS registry number of Flazasulfuron is 104040-78-0.

What is the molecular formula and weight of Flazasulfuron?

The molecular formula of Flazasulfuron is C13H12F3N5O5S and its molar mass is 407.33 g/mol.

What is Flazasulfuron used for?

Herbicide. Flazasulfuron is registered for use on non-residential areas including golf courses and non-residential turf areas such as industrial parks, tank farms, sod farms, seed farms, sports fields and commercial lawns. Flazasulfuron is (used) for control of annual and perennial grasses, sedges, and broadleaf weeds.

Is Flazasulfuron hazardous?

Flazasulfuron 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 Flazasulfuron?

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

Where can I buy Flazasulfuron?

CompoundList lists 16 suppliers of Flazasulfuron in China, Japan, Brazil, France and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Flazasulfuron?

Suppliers quote Flazasulfuron 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 Flazasulfuron

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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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