Introduction

Quinoxyfen 98% TC is a highly effective fungicide belonging to the quinoline class, widely used for controlling powdery mildew diseases in cereals, grapes, and horticultural crops. It acts primarily by interfering with fungal spore germination and infection processes, preventing the establishment and spread of powdery mildew pathogens.

As a high-purity technical material appearing as a white to off-white crystalline powder, Quinoxyfen provides strong protective activity and long-lasting residual control. It is particularly effective against powdery mildew pathogens such as Erysiphe graminis in cereals and Uncinula necator in grapes.

The 98% TC technical material is intended for industrial formulation into commercial fungicide products such as suspension concentrates (SC), wettable powders (WP), and water-dispersible granules (WDG). Due to its unique mode of action and high efficacy against powdery mildew, Quinoxyfen plays an important role in integrated disease management and resistance management programs.

Products Detail

Common Name	Quinoxyfen
Technical Grade	98% TC (Technical Concentrate)
CAS Number	124495-18-7
Molecular Formula	C₁₅H₈Cl₂FNO
Molecular Weight	308.1 g/mol
IUPAC Name	5,7-dichloro-4-(4-fluorophenoxy)quinoline
Appearance	White to off-white crystalline powder
Density	approx. 1.45 g/cm³
Melting Point	144–147°C
Boiling Point	Decomposes before boiling
Vapor Pressure	3 × 10⁻⁶ Pa at 25°C
Water Solubility	Very low solubility in water; soluble in organic solvents
Stability	Stable under normal storage conditions and suitable for long-term industrial formulation
Acute Oral LD50	>5000 mg/kg for rats
Acute Percutaneous LD50	>2000 mg/kg for rats
Skin & Eye	Slight skin and eye irritant
ADI (Acceptable Daily Intake)	0.02 mg/kg body weight
Ecotoxicity	Toxic to aquatic organisms
Target Diseases	Highly effective against powdery mildew diseases in cereals, grapes, cucurbits, and ornamental crops.

Product Feature and Application

As a 98% technical concentrate, Quinoxyfen provides strong preventive fungicidal activity against powdery mildew pathogens. It works by inhibiting fungal spore germination and blocking early infection stages, effectively preventing disease establishment on plant surfaces.

Its primary application is the control of powdery mildew in cereals and grapes, typically applied at 100–200 g/ha, depending on crop type and disease pressure. It is also widely used in cucurbits and ornamental plants where powdery mildew frequently occurs.

Quinoxyfen can be used alone or combined with other fungicides to expand the disease control spectrum and support resistance management strategies.

This 98% TC technical material is intended for industrial formulation into end-use products including:

SC (Suspension Concentrate)
WP (Wettable Powder)
WDG (Water-Dispersible Granules)

Its stable physicochemical properties, excellent residual activity, and compatibility with other fungicides make it an ideal raw material for modern fungicide formulations.

Target Crops & Diseases

(1)Grapes – Powdery Mildew (Uncinula necator)

Key benefits in grapes:

Effective prevention of powdery mildew during early infection stages

Protects grape leaves and fruit clusters from fungal infection

Helps maintain grape yield and fruit quality for wine and fresh markets

Quinoxyfen is widely used in vineyard disease management programs, especially in regions with high humidity where powdery mildew pressure is significant.

(2)Wheat and Barley – Powdery Mildew (Erysiphe graminis)

Key benefits in cereals:

Prevents early infection of powdery mildew on leaves

Protects the photosynthetic leaf area of cereal crops

Helps maintain grain yield and crop vigor

Quinoxyfen is commonly used in cereal disease control programs worldwide.

(3)Cucurbits – Powdery Mildew

Key benefits in cucurbits:

Effective control of powdery mildew on cucumbers, melons, and squash

Protects leaves from fungal damage and premature senescence

Helps maintain fruit yield and crop quality

Quinoxyfen is widely used in vegetable production systems, especially in greenhouse cultivation.

(4)Ornamental Plants – Powdery Mildew

Key benefits in ornamentals:

Controls powdery mildew on roses and ornamental plants

Protects plant appearance and commercial value

Suitable for greenhouse and landscape plant production

Quinoxyfen is commonly used in ornamental crop protection programs where powdery mildew can significantly affect plant quality.

Product Qualification

Registration certificate：EX20240293
Production qualification：The production workshop complies with Good Manufacturing Practice (GMP) standards for pesticides and is equipped with professional raw material testing and finished
product inspection equipment. Each batch of products undergoes multiple quality control tests.
Relative Documents：Third-party authoritative testing institutions shall issue reports ,including five-batches;Physical and Chemical;Toxicology.
Production capacity：With standardized production lines and comprehensive process control, we ensure stable batch supply of products.

Frequently Asked Questions

A. Why is our Quinoxyfen 98% TC the right choice for your portfolio?

Our product offers high purity (98% TC) and consistent batch quality, ensuring stable physicochemical properties and reliable formulation performance.
For formulation companies, this means:

Stable production performance
Reliable disease control efficacy
Reduced formulation risks
Strong competitiveness in fungicide markets

B. What competitive advantages does Quinoxyfen provide in the field?

Quinoxyfen provides highly specific activity against powdery mildew pathogens and offers long-lasting protective action.
This provides:

Strong preventive control
Long residual protection
Excellent crop safety
Compatibility with other fungicides

It is widely used in powdery mildew management programs.

C. Which crops and diseases can it support?

Quinoxyfen is widely used for controlling:

Powdery mildew in grapes
Powdery mildew in wheat and barley
Powdery mildew in cucurbits
Powdery mildew in ornamental crops

It helps growers protect crop quality and maintain yield potential.

D. Is this product suitable for flexible formulation development?

Yes. Our 98% technical concentrate is suitable for manufacturing:

SC (Suspension Concentrate)
WP (Wettable Powder)
WDG (Water-Dispersible Granules)

It offers good stability and formulation flexibility for industrial production.

E. How do you ensure quality, compliance, and supply reliability?

We operate under GMP-compliant pesticide production standards with strict quality control procedures.
Available documentation includes:

Registration certificate
GLP five-batch studies
GLP Physical & chemical data
Toxicology reports
Third-party testing reports

Each batch undergoes strict inspection to ensure stable purity and quality.

F. What are the common co-formulations of Quinoxyfen in the global crop protection market?

Common mixtures include:
(1)Quinoxyfen + Myclobutanil
(2)Quinoxyfen + Tebuconazole
(3)Quinoxyfen + Difenoconazole
(4)Quinoxyfen + Azoxystrobin
(5)Quinoxyfen + Trifloxystrobin
These combinations broaden disease control spectrum and enhance resistance management.

G. Can Quinoxyfen be used in resistance management programs?

Yes. Quinoxyfen belongs to FRAC Group 13 fungicides and has a unique mode of action.
Therefore it is widely used in rotation with triazole, QoI, and SDHI fungicides to help delay resistance development.

H. What makes Quinoxyfen particularly effective against powdery mildew?

Quinoxyfen interferes with fungal spore germination and early infection processes, effectively preventing powdery mildew establishment on plant surfaces.
This preventive activity and long residual protection make it highly effective for powdery mildew control.

I. Is Quinoxyfen suitable for use in cereal crop protection programs?

Yes. Quinoxyfen is widely used in wheat and barley disease management programs.
It provides reliable protection against powdery mildew and helps maintain crop yield and leaf health.

J. What are the storage and handling recommendations for Quinoxyfen 98% TC?

Quinoxyfen 98% TC should be stored in a cool, dry, and well-ventilated warehouse, away from direct sunlight and moisture.
Operators should follow standard pesticide safety procedures and use appropriate personal protective equipment (PPE) during handling.

K. Do you provide technical and regulatory support for formulation partners?

Yes. We provide comprehensive technical and regulatory support for formulation partners, including:

Product specifications and analytical methods
Formulation development guidance
Registration documentation support
Market-specific regulatory assistance

Our team works closely with partners to support successful product development and global market entry.

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Quinoxyfen 98% TC