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Herbicides

Fluthiacet

Also known as (2-Chloro-4-fluoro-5-((ez)-5,6,7,8-tetrahydro-3-oxo-1H,3H-(1,3,4)thiadiazolo(3,4-a)pyridazin-1-ylideneamino)phenylthio)acetic acid, [(2-chloro-4-fluoro-5-{[(1Xi)-3-oxo-5,6,7,8-tetrahydro-1H,3H-[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene]amino}phenyl)sulfanyl]acetic acid, [(2-chloro-4-fluoro-5-{[(1Xi)-3-oxotetrahydro[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene]amino}phenyl)thio]acetic acid

CAS 149253-65-6Formula C14H13ClFN3O3S2Molar mass 389.86 g/mol
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Fluthiacet chemical structure, C14H13ClFN3O3S2, CAS 149253-65-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
149253-65-6
Formula
C14H13ClFN3O3S2
Molar mass
389.86 g/mol
HS code
293499
Category
Herbicides

What is Fluthiacet?

Plain description, key identifiers and synonyms

Fluthiacet is a thiadiazolopyridazine that is 3-iminotetrahydro[1,3,4]thiadiazolo[3,4-a]pyridazin-1-one in which the exocyclic nitrogen has been substituted by a 5-[(carboxymethyl)thio]-4-chloro-2-fluorophenyl group. A protoporphyrinogen oxidase inhibitor, it is used (usually as the corresponding methyl ester proherbicide, fluthiacet-methyl) for the control of broad-leaved weeds in crops such as maize and soya. It has a role as a herbicide, an agrochemical and an EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor. It is an organic sulfide, a monocarboxylic acid, a thiadiazolopyridazine, a member of monochlorobenzenes and a member of monofluorobenzenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[2-chloro-4-fluoro-5-[(3-oxo-5,6,7,8-tetrahydro-[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene)amino]phenyl]sulfanylacetic acid
CAS number
149253-65-6 CAS number cross-checked
Molecular formula
C14H13ClFN3O3S2
UNII
80A642YMCQ
InChIKey
XWROTTLWMHCFEC-UHFFFAOYSA-N
InChI
InChI=1S/C14H13ClFN3O3S2/c15-8-5-9(16)10(6-11(8)23-7-12(20)21)17-13-18-3-1-2-4-19(18)14(22)24-13/h5-6H,1-4,7H2,(H,20,21)
SMILES (canonical and isomeric)
C1CCN2C(=O)SC(=NC3=CC(=C(C=C3F)Cl)SCC(=O)O)N2C1

Synonyms

  • (2-Chloro-4-fluoro-5-((ez)-5,6,7,8-tetrahydro-3-oxo-1H,3H-(1,3,4)thiadiazolo(3,4-a)pyridazin-1-ylideneamino)phenylthio)acetic acid
  • [(2-chloro-4-fluoro-5-{[(1Xi)-3-oxo-5,6,7,8-tetrahydro-1H,3H-[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene]amino}phenyl)sulfanyl]acetic acid
  • [(2-chloro-4-fluoro-5-{[(1Xi)-3-oxotetrahydro[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene]amino}phenyl)thio]acetic acid
  • {2-chloro-4-fluoro-5-[(EZ)-5,6,7,8-tetrahydro-3-oxo-1H,3H-[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylideneamino]phenylthio}acetic acid
  • 2-((2-Chloro-4-fluoro-5-((tetrahydro-3-oxo-1H,3H-(1,3,4)thiadiazolo(3,4-a)pyridazin-1-ylidene)amino)phenyl)thio)acetic acid
  • 2-[[2-chloro-4-fluoro-5-[(tetrahydro-3-oxo-1H,3H-[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene)amino]phenyl]thio]acetic acid
  • ((2-chloro-4-fluoro-5-(((1Xi)-3-oxo-5,6,7,8-tetrahydro-1H,3H-(1,3,4)thiadiazolo(3,4-a)pyridazin-1-ylidene)amino)phenyl)sulfanyl)acetic acid
  • ((2-chloro-4-fluoro-5-(((1Xi)-3-oxotetrahydro(1,3,4)thiadiazolo(3,4-a)pyridazin-1-ylidene)amino)phenyl)thio)acetic acid
  • 2-[2-chloro-4-fluoro-5-[(3-oxo-5,6,7,8-tetrahydro-[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene)amino]phenyl]sulfanylacetic acid
  • ({2-Chloro-4-fluoro-5-[(3-oxotetrahydro-1H,3H-[1,3,4]thiadiazolo[3,4-a]pyridazin-1-ylidene)amino]phenyl}sulfanyl)acetic 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

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
389.86 g/molcalc.
Exact mass
389.0071 Dacalc.
LogP (octanol/water)
2.71calc.
Topological polar surface area
76.59 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
24calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.36calc.
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=c1sc(=Nc2ccccc2)n2n1CCCC2

O=c1sc(=Nc2ccccc2)n2n1CCCC2

3 rings, 17 atoms.

1 other chemical share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Fluthiacet suppliers

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Fluthiacet 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

Roles

  • agrochemical
  • enzyme inhibitor
  • herbicide
  • 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 Fluthiacet is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Fluthiacet?

Fluthiacet is a thiadiazolopyridazine that is 3-iminotetrahydro[1,3,4]thiadiazolo[3,4-a]pyridazin-1-one in which the exocyclic nitrogen has been substituted by a 5-[(carboxymethyl)thio]-4-chloro-2-fluorophenyl group.

What is the CAS number of Fluthiacet?

The CAS registry number of Fluthiacet is 149253-65-6.

What is the molecular formula and weight of Fluthiacet?

The molecular formula of Fluthiacet is C14H13ClFN3O3S2 and its molar mass is 389.86 g/mol.

What is Fluthiacet used for?

Known uses and roles of Fluthiacet include herbicides in agriculture and crop protection, agrochemical, enzyme inhibitor, herbicide and pesticide.

Is Fluthiacet hazardous?

No GHS hazard classification for Fluthiacet is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Fluthiacet?

Fluthiacet is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fluthiacet?

Post a free request on CompoundList and suppliers of Fluthiacet will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Fluthiacet?

Suppliers quote Fluthiacet 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 Fluthiacet

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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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