Methomyl

Ensure Accurate Residue Analysis with High-Purity Methomyl Reference Materials

Methomyl, a potent carbamate insecticide, requires precise monitoring to meet stringent regulatory limits. HPC Standards GmbH offers high-purity Methomyl reference materials, tested to international quality standards, essential for laboratories in food and environmental analysis. Trust our expertise to ensure compliance and reliability in your residue analysis.

Product	Catalog No./ CAS No.	Quantity	Price
D3-Methomyl	675973 1398109-07-3	1X10MG	Please log in.
D3-Methomyl solution Concentration: 100 µg/ml Solvent: Acetonitrile	676008 1398109-07-3	1X1ML	Please log in.
ISO 17034 Reference Material Methomyl	672867 16752-77-5	1X100MG	Please log in.
Methomyl solution Concentration: 100 µg/ml Solvent: Acetonitrile	673379 16752-77-5	1X5ML	Please log in.
Methomyl solution Concentration: 100 µg/ml Solvent: Cyclohexane	688870 16752-77-5	1X5ML	Please log in.
ISO 17034 Certified Reference Material Methomyl	690568 16752-77-5	1X50MG	Please log in.

High-purity reference materials for accurate and reliable residue analysis

Overview

Methomyl is a carbamate insecticide introduced in 1966. It is highly toxic to humans, livestock, pets, and wildlife. Methomyl is commonly used in commercial fly bait and is known by various trade names including Lannate, Mesomile, and Methomex.

The chemical formula for Methomyl is C₅H₁₀N₂O₂S, with a molar mass of 162.20 g/mol. It appears as a white crystalline solid with a slight sulfur-like odor.

Uses

Methomyl is a broad-spectrum insecticide used to kill insect pests. It is registered for commercial/professional use on sites including field, vegetable, and orchard crops, turf (sod farms only), livestock quarters, commercial premises, and refuse containers. Products containing 1% Methomyl are available for retail sale to the general public, but more potent formulations are classified as restricted-use pesticides.

Regulatory

The EU has imposed a pesticide residue limit of 0.01 mg/kg for all fruit and vegetables. In the United States, the use of Methomyl must comply with federal law, and off-label uses are illegal and dangerous.

Monitoring

Due to its high solubility in water and low soil binding affinity, Methomyl has potential for groundwater contamination. The estimated aqueous half-life is 6 days in surface water and over 25 weeks in groundwater. Regular monitoring is essential to ensure compliance with regulatory limits and to prevent environmental contamination.

Health Impact

Methomyl is classified in EPA Toxicity Category I for oral exposure and eye irritation, indicating the highest level of toxicity. It is less toxic via inhalation (Category II), acute dermal effects (Category III), and acute skin irritation (Category IV). Methomyl is not likely to be a carcinogen (EPA carcinogen Category E).

Environmental Impact

Methomyl has low persistence in the soil environment, with a reported half-life of approximately 14 days. However, its high solubility in water and low soil binding affinity make it a potential contaminant for groundwater. Methomyl is highly toxic to non-target organisms, including wildlife and aquatic life.

Safety Measure

Proper handling and application of Methomyl are crucial to minimize risks. Personal protective equipment (PPE) should be worn during handling and application. It is important to follow label instructions and regulatory guidelines to prevent accidental exposure and environmental contamination.

Analytical Standards

HPC Standards GmbH provides high-purity reference materials for Methomyl, ensuring accurate and reliable residue analysis. Our products are tested according to international quality requirements and meet the highest industrial standards. These reference materials are essential for laboratories conducting food and environmental analysis to ensure compliance with regulatory limits.