Clopyralid CAS(1702-17-6) C₆H₃Cl₂NO₂

Product Description

Red Sun Clopyralid (CAS 1702-17-6, C₆H₃Cl₂NO₂) functions as a highly effective, contact-based, and non-selective herbicide, while also offering notable desiccant properties. Formulated as a white to pale yellow crystalline powder, it presents a faint, characteristic chemical odor indicative of its synthetic auxin profile. This technical-grade compound is engineered for extensive agricultural applications and non-crop land management, providing consistent batch stability supported by stringent quality control and validated analytical methods. Upon application, the active ingredient is rapidly absorbed through both foliar surfaces and root systems, exhibiting profound systemic translocation throughout the plant's vascular network. It delivers exceptional eradication capabilities against stubborn perennial broadleaf weeds, particularly those within the Asteraceae, Fabaceae, Solanaceae, and Apiaceae families, including notoriously difficult species such as Lactuca, Cirsium, and Sonchus. By supplying high-purity active ingredients that meet strict industry specifications, this product ensures reliable performance for large-scale agricultural procurement and formulation.

Technical Specifications

Clopyralid Mode of Action & Performance Data

This section details the physiological mechanisms of Clopyralid, its targeted efficacy on specific plant species, and its environmental footprint within agricultural soils. Understanding these metrics assists agronomists and procurement managers in optimizing field application strategies.

Mode of Action

Clopyralid penetrates the plant cuticle and is translocated rapidly via the phloem and xylem, exhibiting profound systemic activity. The compound acts as a synthetic mimic of natural plant growth hormones (auxins). Because it resists normal plant metabolic degradation, it accumulates in meristematic tissues. At lower concentrations, it hyper-stimulates DNA, RNA, and protein synthesis, resulting in abnormal, uncontrolled cell division and epinasty (severe twisting of stems and leaves). At elevated concentrations, it completely disrupts cellular growth, induces vascular tissue collapse, and ultimately leads to complete plant necrosis, ensuring the roots are entirely eradicated to prevent regrowth.

Crop and Weed Performance

This formulation is specifically engineered for selective application in barley, wheat, corn, and cabbage-type rapeseed fields (note: it is strictly not recommended for mustard-type rapeseed). It delivers uncompromising control over deep-rooted broadleaf weeds such as thistle, sowthistle, lettuce, smartweed, and beggarticks. By targeting these persistent species—particularly legumes and weeds in the aster family—it significantly lowers replanting and field management costs for large-scale agricultural operations.

Soil Behavior

Clopyralid demonstrates a low adsorption coefficient in soil profiles, ensuring that the active ingredient remains bioavailable for root uptake by target weeds. It undergoes gradual microbial degradation, particularly under conditions of low oxygen and limited microbial activity. The compound possesses a clear, predictable half-life degradation curve ranging from 4 to 287 days, depending heavily on soil type, regional climate, and microbial health. This predictable metabolism aligns with sustainable agricultural practices and aids in precise crop rotation planning.

Clopyralid Product Features

The following attributes outline the primary operational and commercial advantages of sourcing Clopyralid from Red Sun. Each feature is designed to address specific challenges in modern agronomy and supply chain management.

High Weed Control Efficiency

Our Clopyralid formulation provides extended, long-lasting weed suppression. By effectively neutralizing a broad spectrum of persistent perennial broadleaf species at the root level, its potent systemic action drastically reduces the necessity for repeated seasonal applications. This efficiency translates directly into reduced labor, lower fuel consumption for spraying equipment, and streamlined overall field management efforts.

Environmental Safety

Prioritizing ecological balance, this compound exhibits remarkably low acute toxicity, boasting LD50 values exceeding 4300-5000 mg/kg for both humans and animals. While it is highly safe for immediate handling, controlled application and monitoring are advised, as prolonged exposure may influence animal reproduction. Its profile strictly adheres to modern sustainable agriculture standards.

Cost Advantage

Developed through Red Sun's proprietary in-house research and full-chain manufacturing capabilities, this product offers exceptional economic value. By minimizing raw material waste and optimizing production cycles, we maintain highly competitive pricing. This integrated approach ensures that bulk purchasers receive a reliable, long-term cost advantage without compromising on active ingredient purity.

Advanced Technology

Manufactured utilizing green synthesis processes, our facility actively reduces hazardous waste discharge and energy consumption. This environmentally conscious production methodology not only aligns with stringent global environmental regulations but also guarantees a high-purity yield that passes rigorous quality control and analytical method validations for every commercial batch.

Clopyralid Application Scenarios

Clopyralid is highly versatile, integrating seamlessly into various agricultural and industrial land management programs. The following scenarios highlight its core applications and standardized formulation benefits.

Rapeseed Fields

Specifically deployed to eradicate competing broadleaf weeds such as thistle, smartweed, and cocklebur. For optimal absorption and minimal crop stress, application is strictly recommended during the 3–5 leaf growth stage of cabbage-type rapeseed.

Wheat, Corn, and Beet Fields

Serves as a primary defense against both annual and perennial broadleaf infestations. It proves exceptionally effective in neutralizing deep-rooted problem species that aggressively compete with cash crops for soil nutrients and moisture.

Lawns and Non-Crop Areas

Widely applied by municipal and industrial groundskeepers to manage invasive weeds like purslane and amaranth. It efficiently maintains clean, weed-free open spaces, industrial sites, and recreational lawns without damaging established turf grasses.

Desiccant Use

Under specific agronomic conditions, it functions effectively as a pre-harvest desiccant. By accelerating the evaporation of soil moisture and drying out plant tissues, it alters the micro-environment to suppress weed growth and facilitate easier mechanical harvesting.

Active Ingredient and Content

Standardized to contain exactly 30% Clopyralid as the active ingredient. This precise formulation ensures consistent dilution ratios, predictable field performance, and excellent compatibility when mixed in standard agricultural spray tanks.

Usage and Dosage

For standard rapeseed field applications: accurately measure and apply 20–25 ml per mu via foliar spray. Dilute thoroughly with 15–30 kg of water to guarantee uniform droplet coverage across the foliage. To prevent chemical buildup, limit application to a single pass per growing season.

Clopyralid Safety & Handling

Strict adherence to safety and handling protocols is mandatory to protect personnel, equipment, and the environment. The following guidelines ensure full compliance with international chemical handling standards.

Application Precautions

Under no circumstances should this product be applied to mustard-type rapeseed fields. When applied to spring rapeseed, slight temporary phytotoxicity (leaf curling) may be observed; however, the crop typically recovers naturally within 10–15 days without yield loss. Avoid the use of ultra-low volume mist sprayers to prevent off-target drift.

Weed Specificity

This herbicide is entirely ineffective against grass-type weeds, chickweed, or shepherd's purse. Agronomists should conduct field scouting to ensure broadleaf species dominate before application, avoiding wasted resources on incompatible weed profiles.

Equipment Cleaning

Cross-contamination poses a severe risk to sensitive broadleaf crops. All tanks, hoses, and nozzles used for Clopyralid application must undergo a rigorous triple-rinse cleaning process using an appropriate neutralizing detergent before being repurposed for other agrochemicals.

Personal Protection

Operators must wear full personal protective equipment (PPE), including chemical-resistant coveralls, nitrile gloves, and a certified respirator mask. Pregnant and breastfeeding individuals are strictly prohibited from handling the compound. Do not eat, drink, or smoke within the application or mixing zones.

Packaging and Waste

Open all bulk packaging in well-ventilated areas, taking care to prevent aerosolized dust from contacting the eyes or skin. Empty containers must be triple-rinsed, punctured to prevent unauthorized reuse, and disposed of at certified hazardous waste facilities in accordance with local environmental laws.

First Aid

In the event of accidental eye or skin exposure, immediately flush the affected area with copious amounts of clean water for at least 15 minutes. If ingested, do not induce vomiting; secure the product label or Safety Data Sheet (SDS) and seek emergency medical attention without delay.

Storage and Transport

Store the material in its original, hermetically sealed containers within a cool, dry, and heavily ventilated warehouse. Isolate the product completely from food supplies, potable water sources, children, and open flames. The product meets UN 3077 environmental transport specifications and Class III packaging standards, ensuring secure global logistics.

Hazard Information

GHS Symbol: GHS05
Signal Word: Danger
Hazard Statement: H318
Precautionary Statement: P280-P305 + P351 + P338
European Risk Codes: R41; R51/53
European Safety Codes: S26-S30-S61-S39
Transport Code: UN 3077
RTECS No.: TJ7550700
Packing Grade: III
Hazard Class: 9
HS Code: 2933399028