Overview
Clethodim (CAS 99129-21-2 ), sold under trade names including Select, Volunteer, and Ogive, is a post-emergent herbicide active ingredient used to control grass weeds in broadleaf crops.
It targets annual and perennial grasses without affecting the broadleaf crop, making it a standard choice for selective weed management programs in various agricultural settings.
This chemical is applied in soybean, cotton, sunflower, and canola production to eliminate volunteer cereals and invasive grass species after crop emergence has occurred.
In specialty crop programs, it controls difficult perennial grasses such as quackgrass and johnsongrass where residual soil herbicides are not viable for the grower.
Formulators use this substance as the active ingredient in emulsifiable concentrate and suspension concentrate herbicide products registered for commercial agricultural use worldwide.
Contract manufacturers and generic agrochemical producers source technical-grade material for reformulation into branded or private-label crop protection products for the market.
The product is available as a technical-grade active ingredient, typically as a liquid, for use in downstream formulation and large-scale industrial chemical processing.
Standard commercial concentrations in finished herbicide products are commonly 120 g/L and 240 g/L EC formulations, available in bulk and drum quantities for distributors.
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Physical Properties
| Melting Point | <25 °C |
| Boiling Point | 472.6±55.0 °C(Predicted) |
| Density | 1.18±0.1 g/cm3(Predicted) |
| Color | Light Yellow to Dark Yellow |
| Form | neat |
Safety & Handling
Warning GHS07 Hazard Statements H302 H302 H317 H317 H412 H412 Precautionary Statements P261 P261 P264 P264 P270 P270 P272 P272 P273 P273 P280 P280 P321 P321 P330 P330 P501 P501 P301+P317 P301+P317 P302+P352 P302+P352 P333+P317 P333+P317 P362+P364 P362+P364
Trade & Regulatory
| HS Code | 29309090 |
| UN Number | 3082 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 3 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 99129-21-2
- EC Number
- 276-668-4
- Mol. Weight
- 359.9
- HS Code
- 29309090
- Category
- Agrochemicals