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Red Sun 3,6-Dichloropicolinic acid (CAS 1702-17-6, C₆H₃Cl₂NO₂) is a highly effective, contact-based, non-selective herbicide with additional desiccant properties, ideal for use across diverse crop fields and non-crop areas. It is rapidly absorbed through both roots and foliage, featuring strong systemic activity, and delivers outstanding control against perennial broadleaf weeds such as those in the Asteraceae, Fabaceae, Solanaceae, and Apiaceae families, including species like Lactuca, Cirsium, and Sonchus.
Parameter | Details |
Product Name | 3,6-Dichloropicolinic acid |
CAS Number | 1702-17-6 |
Molecular Formula | C₆H₃Cl₂NO₂ |
Molecular Weight | 191.999 |
Exact Mass | 190.954086 |
Density | 1.6 ± 0.1 g/cm³ |
Boiling Point | 323.7 ± 37.0 ℃ at 760 mmHg |
Melting Point | 151–152 ℃ |
Flash Point | 149.6 ± 26.5 ℃ |
LogP | 1.30 |
PSA | 50.19000 |
Appearance | White or pale yellow powder/crystals |
Vapor Pressure | 0.0 ± 0.7 mmHg at 25 ℃ |
Refractive Index | 1.606 |
Water Solubility | 1.0 g/L |
Storage Conditions | Keep container sealed. Store in a cool, dry place. |
Stability | Stable under normal temperature and pressure. Avoid oxidizers. |
Molar Refractivity | 41.06 |
Molar Volume | 119.0 m³/mol |
Isotonic Specific Volume | 335.2 |
Surface Tension | 62.8 dyne/cm |
Dielectric Constant | Not available |
Polarizability | 16.27 × 10⁻²⁴ cm³ |
This section summarizes how 3,6-Dichloropicolinic acid works, its performance on crops and weeds, and its behavior in soil. Each part is concise for easy understanding.
3,6-Dichloropicolinic acid enters plants through leaves or roots. It moves quickly inside the plant system. The compound mimics natural growth hormones but remains longer in tissues. At low doses, it triggers DNA, RNA, and protein synthesis, leading to uncontrolled cell division. At high doses, it stops cell growth, damages vascular tissues, and causes plant death.
This product is used in barley, wheat, corn, and cabbage-type rapeseed fields. It is not recommended for mustard-type rapeseed. It effectively controls broadleaf weeds like thistle, sowthistle, lettuce, smartweed, and beggarticks. It is particularly useful against legumes and weeds in the aster family.
3,6-Dichloropicolinic acid shows low adsorption in soil, with roots taking up most of the compound. It breaks down slowly under low oxygen and limited microbial activity. The half-life ranges from 4 to 287 days, depending on soil type, climate, and microbial conditions.
The following points introduce the main features of 3,6-Dichloropicolinic acid from Red Sun. Each point includes a short explanation for practical understanding.
This product provides long-lasting weed control. It targets a wide range of broadleaf weeds, including persistent perennial species. Its action reduces the need for repeated applications, lowering field management efforts.
The compound has low acute toxicity, with LD50 values above 4300-5000 mg/kg for humans and animals. However, long-term exposure may affect animal reproduction, so controlled use and monitoring are recommended.
Developed by Red Sun, the product benefits from in-house research and cost-effective production. Low waste generation during manufacturing helps keep overall costs competitive.
The product uses green production processes to reduce waste discharge. This approach aligns with modern environmental regulations and supports sustainable agricultural practices.
The following points show how 3,6-Dichloropicolinic acid from Red Sun is used across different crops and areas. Each point highlights a key application with simple guidance.
Used to control broadleaf weeds such as thistle, smartweed, and cocklebur. Applied during the 3–5 leaf stage of rapeseed for best results.
Targets both annual and perennial broadleaf weeds. Especially effective on deep-rooted problem species that compete with main crops.
Applied to manage weeds like purslane and amaranth in lawns and other open areas. Helps maintain clean, weed-free grounds.
In certain conditions, used as a desiccant to speed soil moisture evaporation. This supports weed control by reducing growth conditions.
Contains 30% 3,6-Dichloropicolinic acid as the active ingredient for consistent performance across applications.
For rapeseed fields: apply 20–25 ml per mu by foliar spray. Mix with 15–30 kg water for even coverage. Apply once per season only.
The following points summarize safety instructions, first aid, and storage requirements for 3,6-Dichloropicolinic acid from Red Sun. Each point is brief and practical for safe use.
Do not use in mustard-type rapeseed fields. Light temporary damage may occur in spring rapeseed but recovers naturally in 10–15 days. Do not use mist sprayers.
Not effective on grass weeds like chickweed or shepherd’s purse. Avoid use in fields dominated by these weeds.
Sprayers used for this product must be cleaned thoroughly before applying other pesticides on broadleaf crops.
Pregnant and breastfeeding women should avoid contact. Wear protective clothing and a mask. Do not eat, drink, or smoke while spraying.
Open packaging carefully to prevent skin or eye contact. Used containers must be disposed of safely and never reused.
In case of eye or skin contact, rinse with plenty of water. If swallowed, bring the product label and seek medical care immediately.
Store in a sealed container in a cool, dry, ventilated place. Keep away from food, water sources, children, and fire. Transport with care to avoid leaks or damage.
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
