Description

Pyrazophos is a systemic organophosphorus fungicide and acaricide known for its protective and curative action against a range of fungal diseases. Its primary value lies in its effectiveness in controlling powdery mildews and other pathogens in various high-value crops, offering growers a reliable tool for crop protection. This product is essential for agricultural professionals and formulators in the agrochemical industry seeking robust disease management solutions.

Application

• Agricultural Fungicide: Primary use for the control of powdery mildew (caused by Erysiphe cichoracearum, Sphaerotheca fuliginea) in cucurbits such as cucumbers, melons, and pumpkins.
• Crop Protection: Used in the management of fungal diseases in other crops including cereals, ornamentals, and certain fruit trees.
• Agrochemical Formulation: A key active ingredient in the manufacture of emulsifiable concentrate (EC), wettable powder (WP), and other commercial pesticide formulations.
• Integrated Pest Management (IPM): Can be incorporated into rotation programs to manage resistance development in pathogen populations.
• Post-Harvest Treatment: Potential application in protecting stored commodities from fungal deterioration, subject to local regulatory approvals.

Basic Information

Product Name	Pyrazophos
CAS No.	13457-18-6
Molecular Formula	C14H20N3O5PS
Molecular Weight	373.36 g/mol
Synonyms	Afugan; Curamil; Hoe 02873; 2-[(Diethoxyphosphinothioyl)oxy]-5-methylpyrazolo[1,5-a]pyrimidin-6-yl dimethylcarbamate; O,O-Diethyl O-6-ethoxycarbonyl-5-methylpyrazolo[1,5-a]pyrimidin-2-yl phosphorothioate; 5-Methyl-1,2-oxazol-3-yl dimethylcarbamate O-ester with O,O-diethyl phosphorothioate (alternative representation)
EINECS	236-625-2

Quality Control

Our Pyrazophos is manufactured under strict quality management systems to ensure batch-to-batch consistency and efficacy. The product undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to meet technical or formulated grade specifications. A Certificate of Analysis (COA) detailing purity, relevant impurities, and physical parameters is provided with each shipment to guarantee supply reliability and performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	50 - 52 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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