Description

Proquinazid is a modern, systemic fungicide belonging to the quinazolinone chemical class. It is valued for its specific mode of action, offering effective control against powdery mildew diseases in a variety of crops. This product is essential for agricultural professionals and formulators seeking reliable, high-performance crop protection solutions. Our supply ensures consistent quality and purity for optimal field performance and formulation stability.

Application

Proquinazid is primarily used as a key active ingredient in agricultural fungicides. Its main applications include:

• Control of Powdery Mildew in cereals, grapes, and specialty crops.
• Formulation into suspension concentrates (SC) and wettable powders (WP) for foliar application.
• Integrated Pest Management (IPM) programs due to its specific biochemical target, helping manage resistance.
• Protection of viticulture (grapevines) from Uncinula necator.
• Use in horticulture for protecting fruits and vegetables.
• Manufacture of professional agricultural chemical products for the global market.

Basic Information

Product Name	Proquinazid
CAS No.	189278-12-4
Molecular Formula	C14H12ClF2N3O3
Molecular Weight	343.71 g/mol
Synonyms	6-Iodo-2-propoxy-3-propylquinazolin-4(3H)-one; Talius; 6-Iodo-2-propoxy-3-propyl-3,4-dihydroquinazolin-4-one; Proquinazid (ISO); UNII-1C16K2R0YQ; 3,4-Dihydro-6-iodo-2-propoxy-3-propyl-4-quinazolinone; 1C16K2R0YQ; Proquinazide
EINECS	Contact for details

Quality Control

Our Proquinazid is manufactured under a strict quality management system to ensure batch-to-batch consistency and efficacy. Quality is verified through advanced analytical techniques including HPLC and GC. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee compliance with your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly closed when not in use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.