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Herbicides

Thifensulfuron methyl

Also known as Thifensulfuron-methyl, Thiameturon-methyl, Pinnacle

CAS 79277-27-3Formula C12H13N5O6S2Molar mass 387.40 g/molEC 616-673-4
GHS signal word: Warning. Pictograms: Hazardous to the environment 16 suppliers listed
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Thifensulfuron methyl chemical structure, C12H13N5O6S2, CAS 79277-27-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Off-white solid
Melting point
186 °C
Density
1.580 g/cm³
Solubility
In water, 2.24 × 10⁺³ mg/L at 25 °C
HS code
293590
Category
Herbicides
Illustrative photo, off-white powder in an open kraft paper sack in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Thifensulfuron methyl?

Plain description, key identifiers and synonyms

Thifensulfuron-methyl is a methyl ester resulting from the formal condensation of the carboxy group of thifensulfuron with methanol. It is used as a post-emergence herbicide for the control of grass and broad-leaved weeds. It has a role as a herbicide, an agrochemical, a xenobiotic and an environmental contaminant. It is a methyl ester, a member of 1,3,5-triazines, a member of thiophenes and a N-sulfonylurea. It is functionally related to a thifensulfuron.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methyl 3-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoylsulfamoyl]thiophene-2-carboxylate
CAS number
79277-27-3 CAS number cross-checked
EC number
616-673-4
Molecular formula
C12H13N5O6S2
UNII
5VFH25ES6F
MDL number
MFCD00468118
InChIKey
AHTPATJNIAFOLR-UHFFFAOYSA-N
InChI
InChI=1S/C12H13N5O6S2/c1-6-13-10(16-12(14-6)23-3)15-11(19)17-25(20,21)7-4-5-24-8(7)9(18)22-2/h4-5H,1-3H3,(H2,13,14,15,16,17,19)
SMILES (canonical and isomeric)
CC1=NC(=NC(=N1)OC)NC(=O)NS(=O)(=O)C2=C(SC=C2)C(=O)OC

Synonyms

  • Thifensulfuron-methyl
  • Thiameturon-methyl
  • Pinnacle
  • methyl 3-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoylsulfamoyl]thiophene-2-carboxylate
  • Thifensulfuron methyl ester
  • INM 6316
  • 2-Thiophenecarboxylic acid, 3-(((((4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino)carbonyl)amino)sulfonyl)-, methyl ester
  • 2-Thiophenecarboxylic acid, 3-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]-, methyl ester
  • methyl 3-((4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoylsulfamoyl)thiophene-2-carboxylate
  • Harmony
  • Refine
  • Methyl 3-(N-((4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoyl)sulfamoyl)thiophene-2-carboxylate
  • Methyl 3-(4-methoxy-6-methyl-1,3,5-triazin-2-ylcarbamoylsulfamoyl)thiophene-2-carboxylate
  • Harmony GT
  • Refine DF
  • Harmony GT-XP
  • Pinnacle 25DF
  • methyl 3-({[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoyl]amino}sulfonyl)thiophene-2-carboxylate
  • methyl 3-{[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoyl]sulfamoyl}thiophene-2-carboxylate
  • Harmony 75DF
  • DPX-M 6316
  • hifensulfuron methyl
  • Methyl 3-[N-[(4-Methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoyl]sulfamoyl]thiophene-2-carboxylate
  • Methyl 3-(4-methoxy-6-methyl-1,3,5-triazin-2-ylcarbamoylsulfamoyl)-2-thenoate
  • Thifensulfuron-methyl 100 microg/mL in Acetonitrile
Show all 26 synonyms
  • Thifensulfuron-methyl, PESTANAL(R), analytical standard

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
Off-white solidexp.
Odour
Odorlessexp.
Melting point
186 °Cexp.
Density
1.580 g/cm³exp.
Solubility
In water, 2.24 × 10⁺³ mg/L at 25 °Cexp.
Vapour pressure
1.28 × 10⁻¹⁰ 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
387.40 g/molcalc.
Exact mass
387.0307 Dacalc.
LogP (octanol/water)
0.55calc.
Topological polar surface area
149.5 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
10calc.
Rotatable bonds
5calc.
Heavy atoms
25calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.25calc.
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(Nc1ncncn1)NS(=O)(=O)c1ccsc1

O=C(Nc1ncncn1)NS(=O)(=O)c1ccsc1

2 rings, 18 atoms.

3 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

Thifensulfuron methyl suppliers

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All 16 suppliers
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Where suppliers are based

16 suppliers in 5 countries

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Thifensulfuron methyl 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

Sulfonylurea herbicide for postemergence broadleaf weed control in food crops.

Herbicide (for) postemergence weed control in soybeans.

Use classes: Pesticides, Pharmaceuticals, Herbicides.

Roles

  • agrochemical
  • environmental contaminant
  • herbicide
  • pesticide
  • xenobiotic

Functional uses

  • Biocide

How it is made

Thifensulfuron-methyl is produced by reaction of 2-(methoxycarbonyl)-3-thiophenesulfonyl isocyanate 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: 016-096-00-2

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

Frequently asked questions

Quick answers about Thifensulfuron methyl, based on the data on this page

What is Thifensulfuron methyl?

Thifensulfuron-methyl is a methyl ester resulting from the formal condensation of the carboxy group of thifensulfuron with methanol. It is used as a post-emergence herbicide for the control of grass and broad-leaved weeds. It has a role as a herbicide, an agrochemical, a xenobiotic and an environmental contaminant.

What is Thifensulfuron methyl used for?

Sulfonylurea herbicide for postemergence broadleaf weed control in food crops. Herbicide (for) postemergence weed control in soybeans. Use classes: Pesticides, Pharmaceuticals, Herbicides.

Is Thifensulfuron methyl hazardous?

Thifensulfuron methyl 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.

Guides for buyers

Practical guides that help when you source, ship or handle Thifensulfuron methyl

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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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