Basic Information

Chemical Name: Simazine

CAS Number: 122-34-9

Molecular Formula: C₇H₁₂ClN₅

Molecular Weight: 201.66 g/mol

Appearance: White to off-white crystalline powder

Purity: ≥98.0% – 99.8% (Analytical Grade)

Product Overview

Simazine is a selective, systemic herbicide belonging to the triazine chemical family. It is widely used in agriculture to control a variety of annual broadleaf and grassy weeds. Farmers often apply Simazine before weed emergence, as it provides long-lasting soil activity and prevents weed competition during the early stages of crop growth.This herbicide is especially effective for corn, sugarcane, citrus orchards, vineyards, and non-crop areas, where reliable pre-emergence weed control is essential for maintaining healthy crop yields.Beyond agricultural use, Simazine also serves as a research-grade compound in biological and environmental studies, where it is employed as a metabolic inhibitor and reference standard for pesticide degradation research.

Mode of Action

Simazine inhibits photosynthesis in susceptible plants by blocking electron transport in photosystem II. This disruption leads to chlorosis, growth inhibition, and eventual plant death. Its selective activity allows crops such as maize and sugarcane to tolerate the herbicide, while unwanted weeds are effectively controlled.

Applications

• Pre-emergence and early post-emergence weed control in corn, sugarcane, and orchard crops.

• Long-term soil treatment in non-crop areas like roadsides, railways, and industrial zones.

• Research applications in environmental monitoring and degradation studies.

Recommended Usage: Apply before weed germination. The dosage and method may vary depending on soil type and target weed species.

Safety and Environmental Precautions

While Simazine is considered a low- to moderate-toxicity compound, proper handling is important.

• Health Risk: Prolonged or repeated exposure may cause adverse effects; classified as a potential carcinogen in some studies.

• Environmental Risk: Persistent in soil and potentially contaminating to groundwater. Avoid discharge into natural water systems.

• Protective Measures: Wear gloves, goggles, and respiratory protection during handling. Wash thoroughly after use.

Waste disposal should comply with local environmental regulations.

Packaging and Transportation

Standard Packaging: 25 kg fiber drum or customized packaging upon request.

Transport: Handle as a non-flammable, stable chemical. Protect from moisture and direct sunlight during transit.