Clethodim
Clethodim (CAS: 99129-21-2) is a cyclohexenone oxime herbicide with the molecular formula C17H26ClNO3S and a molecular weight of 359.91 g/mol. It is known for its effectiveness in controlling grass weeds in a variety of broadleaf crops. Clethodim acts by inhibiting acetyl-CoA carboxylase (ACCase), a key enzyme in fatty acid biosynthesis. This selective mode of action makes it a valuable tool in modern agricultural practices for post-emergence weed management.
- IUPAC
- 2-{(E)-1-[(E)-3-Chloroallyloxyimino]propyl}-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one

Selective Grass Weed Control in Broadleaf Crops
Clethodim is a post-emergence herbicide primarily used to control annual and perennial grass weeds in numerous broadleaf crops. Its selective nature ensures minimal damage to the intended crop while effectively managing weed competition.
Agricultural Herbicide
As an agricultural input, Clethodim aids in crop protection by preventing yield losses due to aggressive grass infestations. It is an important component of integrated weed management strategies in various agricultural settings.
Research and Development
Clethodim serves as a reference standard in analytical and environmental testing, as well as in research focused on herbicide efficacy, plant physiology, and resistance mechanisms.
| Molecular weight | 359.91 |
|---|---|
| Empirical formula | C17H26ClNO3S |
| Grade | analytical standard |
| Storage temperature | 2-8°C |
Hazard statements
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Packaging | ampule of 100 mg |
|---|---|
| Mfr No | Chem Service, Inc., PS-2045 |
| Gene Information | rat ... Acaca(60581) |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Clethodim used for?
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Clethodim is primarily used as a selective herbicide to control grass weeds in broadleaf crops. It functions by inhibiting ACCase, a crucial enzyme in fatty acid synthesis.
What is the CAS number and molecular formula for Clethodim?
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The CAS number for Clethodim is 99129-21-2, and its molecular formula is C17H26ClNO3S.
What grade and purity does Tech Serve Solutions supply for Clethodim?
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Tech Serve Solutions supplies Clethodim as an analytical standard. We do not represent it as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the product documentation.
How should Clethodim be handled and stored?
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Clethodim is harmful to aquatic life with long-lasting effects (H412). Handle with appropriate personal protective equipment, including eyeshields and gloves, in a well-ventilated area. Store at 2-8°C, and avoid release to the environment (P273).
How is Clethodim packaged and exported by Tech Serve Solutions?
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Clethodim is supplied in ampules of 100 mg. As a global supplier and exporter of fine chemicals, Tech Serve Solutions adheres to all necessary regulations for international shipping.
How can I request a sample or quote for Clethodim?
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To request a sample or a quote for Clethodim, please contact our sales department through the provided channels on our website, referencing product code PS-2045.
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