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Herbicides

Thiencarbazone

Also known as 4-((4,5-Dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonylsulfamoyl)-5-methylthiophene-3-carboxylic acid, BYH 18636 carboxylic acid, BYH-18636-carboxylic acid

CAS 936331-72-5Formula C11H12N4O7S2Molar mass 376.37 g/molEC 812-654-1
GHS signal word: Warning. Pictograms: Hazardous to the environment 2 suppliers listed
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Thiencarbazone chemical structure, C11H12N4O7S2, CAS 936331-72-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
936331-72-5
Formula
C11H12N4O7S2
Molar mass
376.37 g/mol
EC number
812-654-1
HS code
293590
Category
Herbicides

What is Thiencarbazone?

Plain description, key identifiers and synonyms

Thiencarbazone is an N-sulfonylurea in which the sulfur atom is attached to a 4-carboxy-2-methylthiophen-3-yl group and in which the non-sulfonated nitrogen is substituted by a 3-methoxy-4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl group. It is a metabolite of the herbicide, thiencarbazone-methyl. It has a role as an EC 2.2.1.6 (acetolactate synthase) inhibitor, a herbicide, a metabolite and an agrochemical. It is an ether, a member of triazoles, a thiophenecarboxylic acid and a N-sulfonylurea.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-[(3-methoxy-4-methyl-5-oxo-1,2,4-triazole-1-carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylic acid
CAS number
936331-72-5 CAS number cross-checked
EC number
812-654-1
Molecular formula
C11H12N4O7S2
UNII
KAW004A9ZC
InChIKey
GLDAZAQRGCSFNP-UHFFFAOYSA-N
InChI
InChI=1S/C11H12N4O7S2/c1-5-7(6(4-23-5)8(16)17)24(20,21)13-9(18)15-11(19)14(2)10(12-15)22-3/h4H,1-3H3,(H,13,18)(H,16,17)
SMILES (canonical and isomeric)
CC1=C(C(=CS1)C(=O)O)S(=O)(=O)NC(=O)N2C(=O)N(C(=N2)OC)C

Synonyms

  • 4-((4,5-Dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonylsulfamoyl)-5-methylthiophene-3-carboxylic acid
  • BYH 18636 carboxylic acid
  • BYH-18636-carboxylic acid
  • 3-Thiophenecarboxylic acid, 4-((((4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)amino)sulfonyl)-5-methyl-
  • 4-((((4,5-Dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)amino)sulfonyl)-5-methyl-3-thiophenecarboxylic acid
  • 4-[(3-methoxy-4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazole-1-carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylic acid
  • 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1h-1,2,4-triazol-1-yl)carbonylsulfamoyl]-5-methylthiophene-3-carboxylic acid
  • 4-[[[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl]amino]sulfonyl]-5-methyl-3-thiophenecarboxylic acid
  • 4-((3-methoxy-4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazole-1-carbonyl)sulfamoyl)-5-methylthiophene-3-carboxylic acid
  • 4-{[(3-methoxy-4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazole-1-carbonyl)amino]sulfonyl}-5-methylthiophene-3-carboxylic acid
  • thiencarbazone-methyl TP1
  • 4-[(3-methoxy-4-methyl-5-oxo-1,2,4-triazole-1-carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylic acid
  • BYH 18636-carboxylic acid
  • 3-thiophene carboxylic acid, 4((((4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)amino)sulfonyl)-5-methyl-
  • 4-[[[(4,5-Dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl]amino]sulfonyl]-5-methyl-3-thiophenecarboxylic acid, Thiencarbazone

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
376.37 g/molcalc.
Exact mass
376.0147 Dacalc.
LogP (octanol/water)
-0.39calc.
Topological polar surface area
149.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
4calc.
Heavy atoms
24calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.27calc.
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(NS(=O)(=O)c1ccsc1)n1nc[nH]c1=O

O=C(NS(=O)(=O)c1ccsc1)n1nc[nH]c1=O

2 rings, 17 atoms.

1 other chemical 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

Thiencarbazone suppliers

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All 2 suppliers

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Where suppliers are based

2 suppliers in 1 country

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Thiencarbazone 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

Use classes: Pesticide transformation products, Transformation products.

Roles

  • agrochemical
  • enzyme inhibitor
  • herbicide
  • metabolite
  • pesticide

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 Thiencarbazone 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 Thiencarbazone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Thiencarbazone?

Thiencarbazone is an N-sulfonylurea in which the sulfur atom is attached to a 4-carboxy-2-methylthiophen-3-yl group and in which the non-sulfonated nitrogen is substituted by a 3-methoxy-4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl group. It is a metabolite of the herbicide, thiencarbazone-methyl.

What is the CAS number of Thiencarbazone?

The CAS registry number of Thiencarbazone is 936331-72-5.

What is the molecular formula and weight of Thiencarbazone?

The molecular formula of Thiencarbazone is C11H12N4O7S2 and its molar mass is 376.37 g/mol.

What is Thiencarbazone used for?

Use classes: Pesticide transformation products, Transformation products.

Is Thiencarbazone hazardous?

Thiencarbazone 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 Thiencarbazone?

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

Where can I buy Thiencarbazone?

CompoundList lists 2 suppliers of Thiencarbazone in France. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Thiencarbazone?

Suppliers quote Thiencarbazone 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 Thiencarbazone

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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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