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Imazapyr (CAS 81334-34-1) is a systemic imidazolinone herbicide for controlling a wide range of weeds in forestry, industrial, and non-crop areas. Long residual effect, low use rate, and stable quality from trusted supplier.
CAS Number:
Ingredient Content:Imazapyr 30% WG,250 g/L SL,100 g/L AS
Product Appearance:White to light yellow crystalline powder
Visit Volume:59
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Imazapyr is a high-efficiency, broad-spectrum, systemic herbicide belonging to the imidazolinone chemical family.It inhibits the activity of acetohydroxyacid synthase (AHAS or ALS) in plants, blocking the synthesis of branched-chain amino acids, thereby suppressing weed growth and eventually causing plant death.The product features fast action, long residual effect, low application rate, and excellent environmental stability, making it widely used for weed control in non-crop areas, forestry, industrial zones, roadsides, irrigation channels, and pastures.
| Item | Information |
|---|---|
| Name | Imazapyr |
| CAS Number | 81334-34-1 |
| Molecular Formula | C₁₃H₁₅N₃O₃ |
| Molecular Weight | 261.28 g/mol |
| Chemical Family | Imidazolinone herbicide |
| Appearance | White to light yellow crystalline powder |
| Purity (TC) | ≥95%–98% |
| Melting Point | 170–175°C |
| Solubility | Soluble in water, methanol, ethanol, and acetone |
| Storage Conditions | Keep tightly sealed, dry, and away from light. Store at 2–8°C or room temperature. |
Imazapyr effectively controls a wide range of annual and perennial broadleaf weeds, grasses, and woody plants, and is suitable for multiple application scenarios:
Non-crop weed control: Railways, highways, airports, industrial sites, and oil depots
Forestry management: Used for forest regeneration and brush control
Agricultural fields: Weed control in sugarcane, eucalyptus, and pasture lands
Water areas and ditches: Control of aquatic weeds using water-soluble formulations
Mode of action:
Imazapyr is absorbed through plant roots and foliage, then translocated throughout the plant, where it inhibits protein synthesis and stops growth until plant death occurs.
In scientific research, Imazapyr is used as an enzyme inhibition tool compound for studying amino acid metabolism and herbicide resistance in plants.
In environmental toxicology studies, it serves as a model compound for persistent herbicides in soil degradation and migration experiments.
Acute toxicity: Low toxicity to humans and animals (Oral LD₅₀ > 5000 mg/kg)
Environmental impact: Low toxicity to fish and aquatic organisms, but may affect aquatic plants
Degradation: Highly stable in soil, primarily degraded by microbial activity
Protection measures: Wear gloves, goggles, and masks when handling. Avoid inhalation or skin contact.
| Type | Content | Features |
|---|---|---|
| Imazapyr 98% TC | Technical grade | Used as raw material for formulation manufacturing |
| Imazapyr 250 g/L SL | Soluble liquid | Ideal for non-crop weed control |
| Imazapyr 100 g/L AS | Aqueous solution | Easy to use, fast absorption |
| Imazapyr 30% WG | Water-dispersible granule | Long-lasting effect, excellent solubility |
