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Herbicides

Clethodim

Also known as Volunteer, Select, Ogive

CAS 99129-21-2Formula C17H26ClNO3SMolar mass 359.92 g/molEC 619-396-7
GHS signal word: Warning. Pictograms: Harmful or irritant 148 suppliers listed
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Clethodim chemical structure, C17H26ClNO3S, CAS 99129-21-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Clear amber liquid
Boiling point
Decomposes below boiling point
Flash point
72 °C
Solubility
Soluble in most organic solvents
HS code
293090
Category
Herbicides
Illustrative photo, clear liquid in a volumetric flask on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Clethodim?

Plain description, key identifiers and synonyms

Clethodim is a chemical substance with the molecular formula C17H26ClNO3S and a molar mass of 359.92 g/mol. Its CAS registry number is 99129-21-2. The IUPAC name is 2-[N-[(E)-3-chloroprop-2-enoxy]-C-ethylcarbonimidoyl]-5-(2-ethylsulfanylpropyl)-3-hydroxycyclohex-2-en-1-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[N-[(E)-3-chloroprop-2-enoxy]-C-ethylcarbonimidoyl]-5-(2-ethylsulfanylpropyl)-3-hydroxycyclohex-2-en-1-one
CAS number
99129-21-2 CAS number cross-checked
EC number
619-396-7
Molecular formula
C17H26ClNO3S
InChIKey
SILSDTWXNBZOGF-JWGBMQLESA-N
InChI
InChI=1S/C17H26ClNO3S/c1-4-14(19-22-8-6-7-18)17-15(20)10-13(11-16(17)21)9-12(3)23-5-2/h6-7,12-13,20H,4-5,8-11H2,1-3H3/b7-6+,19-14?
Canonical SMILES
CCSC(C)CC1CC(=O)C(C(CC)=NOCC=CCl)=C(O)C1
Isomeric SMILES
CCC(=NOC/C=C/Cl)C1=C(CC(CC1=O)CC(C)SCC)O

Synonyms

  • Volunteer
  • Select
  • Ogive
  • Prism
  • Trigger
  • 2-((1E)-N-(((2E)-3-chloro-2-propen-1-yl)oxy)propanimidoyl)-5-(2-(ethylsulfanyl)propyl)-3-hydroxy-2-cyclohexen-1-one
  • 2-(N-(((2E)-3-chloroprop-2-en-1-yl)oxy)propanimidoyl)-5-(2-(ethylsulfanyl)propyl)-3-hydroxycyclohex-2-en-1-one
  • 2-(N-{[(2E)-3-chloroprop-2-en-1-yl]oxy}propanimidoyl)-5-[2-(ethylsulfanyl)propyl]-3-hydroxycyclohex-2-en-1-one
  • 2-Cyclohexen-1-one, 2-(1-(((3-chloro-2-propenyl)oxy)imino)propyl)-5-(2-(ethylthio)propyl)-3-hydroxy-
  • Centurion
  • 2-[N-[(E)-3-chloroprop-2-enoxy]-C-ethylcarbonimidoyl]-5-(2-ethylsulfanylpropyl)-3-hydroxycyclohex-2-en-1-one
  • Centurion, Centurion 240, 2-(1-((((E)-3-chloroallyl)oxy)imino)propyl)-5-(2-(ethylthio)propyl)-3-hydroxycyclohex-2-en-1-one

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
Clear amber liquidexp.
Boiling point
Decomposes below boiling pointexp.
Flash point
72 °Cexp.
Solubility
Soluble in most organic solventsexp.

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
359.92 g/molcalc.
Exact mass
359.1322 Dacalc.
LogP (octanol/water)
4.84calc.
Topological polar surface area
58.89 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
9calc.
Heavy atoms
23calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.65calc.
Formal charge
0calc.
Stereocentres
2calc.
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=C1C=CCCC1

O=C1C=CCCC1

1 ring, 7 atoms, the 2-Cyclohexen-1-one ring system.

1,362 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (13)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

Clethodim suppliers

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

All 148 suppliers
30 of 30 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

148 suppliers in 11 countries

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Clethodim 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.

Pharmacological actions

  • Herbicides

Roles

  • enzyme inhibitor
  • herbicide
  • pesticide

Functional uses

  • Biocide

How it is made

Clethodim is produced by reaction of ethyl mercaptan with crotonal, followed, successively, by treatment with acetone, dimethyl malonate, hydrolysis reagents, propionic acid chloride, and a-chlorohydroxyallylamine.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 606-150-00-9

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Clethodim is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Clethodim?

Clethodim is a chemical substance with the molecular formula C17H26ClNO3S and a molar mass of 359.92 g/mol. Its CAS registry number is 99129-21-2. The IUPAC name is 2-[N-[(E)-3-chloroprop-2-enoxy]-C-ethylcarbonimidoyl]-5-(2-ethylsulfanylpropyl)-3-hydroxycyclohex-2-en-1-one.

What is the CAS number of Clethodim?

The CAS registry number of Clethodim is 99129-21-2.

What is the molecular formula and weight of Clethodim?

The molecular formula of Clethodim is C17H26ClNO3S and its molar mass is 359.92 g/mol.

What is Clethodim used for?

Herbicide.

Is Clethodim hazardous?

Clethodim carries the GHS signal word "Warning". Main hazards: harmful if swallowed, may cause an allergic skin reaction, harmful 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 Clethodim?

Clethodim is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Clethodim?

CompoundList lists 148 suppliers of Clethodim in Brazil, China, United States, India and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Clethodim in India?

6 suppliers in India list Clethodim on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Clethodim?

Suppliers quote Clethodim 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 Clethodim

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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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