Description

Dimethirimol is a systemic fungicide belonging to the pyrimidine chemical class, valued for its specific action against powdery mildew fungi. Its primary commercial value lies in providing effective, targeted disease control in agricultural systems, helping to protect crop yield and quality. This product is essential for agricultural producers, agrochemical formulators, and research institutions focused on plant protection and fungicide development.

Application

• Primary Agricultural Fungicide: Control of powdery mildew (caused by Erysiphe cichoracearum and Sphaerotheca fuliginea) in cucurbit crops such as melons, cucumbers, and pumpkins.
• Specialty Crop Protection: Used in the management of fungal diseases in greenhouse and ornamental plant production.
• Agrochemical Formulation: A key active ingredient in the manufacture of emulsifiable concentrates (EC), wettable powders (WP), and other fungicidal formulations.
• Research & Development: Serves as a reference standard and biochemical tool in studies of fungicide mode of action, resistance management, and environmental fate.
• Integrated Pest Management (IPM): Can be incorporated into rotational programs to mitigate resistance development in pathogen populations.

Basic Information

Product Name	Dimethirimol
CAS No.	5221-53-4
Molecular Formula	C11H19N3O
Molecular Weight	209.29 g/mol
Synonyms	5-Butyl-2-(dimethylamino)-6-methylpyrimidin-4-ol; Milcurb; PP 675; Dimethirimole; 5-n-Butyl-2-dimethylamino-4-hydroxy-6-methylpyrimidine
EINECS	226-027-7

Quality Control

Our Dimethirimol is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support our global clients with documentation relevant to regional regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	102 - 105 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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