Description

Fonofos CAS NO 994-22-9 is a potent organophosphorus insecticide and nematicide. This compound is valued for its effectiveness in controlling soil-dwelling pests that threaten crop yields and agricultural productivity. It is primarily needed by the agrochemical industry for the formulation of crop protection products targeting rootworms, nematodes, and other subterranean insects in various agricultural systems.

Application

• Agricultural Insecticide: Formulated for the control of corn rootworms, wireworms, and other soil insects in maize, potatoes, and other row crops.
• Nematicide: Used to manage populations of plant-parasitic nematodes that damage root systems and reduce crop vigor.
• Soil Treatment: Applied as a pre-plant or at-planting soil insecticide to create a protective zone around developing seedlings.
• Pest Control Formulations: Serves as a key active ingredient in the manufacture of granular and liquid pesticide formulations for professional agricultural use.
• Crop Protection Programs: Integrated into broader pest management strategies to protect high-value agricultural commodities from early-season insect pressure.

Basic Information

Product Name	Fonofos
CAS No.	994-22-9
Molecular Formula	C10H15OPS2
Molecular Weight	246.33 g/mol
Synonyms	Dyfonate; O-Ethyl S-phenyl ethylphosphonodithioate; Ethylphosphonodithioic acid O-ethyl S-phenyl ester; Stauffer N-2790; ENT 25,796; Phosphonodithioic acid, O-ethyl S-phenyl ester
EINECS	213-607-8

Quality Control

Our Fonofos is manufactured and tested to meet exacting technical-grade standards for agrochemical active ingredients. Quality assurance protocols include rigorous analytical testing to ensure identity, purity, and consistency from batch to batch. A Certificate of Analysis (COA) detailing key parameters such as assay and impurity profiles is provided with every shipment to guarantee supply reliability and performance in your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its properties, it should be kept under an inert atmosphere to prevent oxidation and stored away from strong bases and organic solvents. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%
Specific Gravity (20°C)	1.150 - 1.170

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.