Myclobutanil Emulsifiable Concentrate (EC)

Myclobutanil EC (Emulsifiable Concentrate) is a liquid agrochemical formulation in which the active ingredient myclobutanil (a systemic triazole fungicide) is dissolved in organic solvents and equipped with emulsifiers so that, when mixed with water, it forms a stable oil-in-water emulsion for spray application.

Myclobutanil is a broad-spectrum systemic fungicide that inhibits fungal cell membrane production through ergosterol biosynthesis inhibition (EBI, DMI fungicide group – FRAC Group 3).

The EC formulation type allows easy mixing with water, high active-ingredient solubility, and good leaf coverage.

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⭐ 2. Chemical Identity (Active Ingredient)

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⭐ 3. General Physical & Chemical Properties (Myclobutanil EC)

(General behavior of the EC formulation — NOT a recipe)

Formulation-type Properties

• Appearance: Clear to slightly cloudy amber/brown liquid

• Odor: Mild solvent or aromatic odor

• Solubility:

  • Insoluble in water (EC forms emulsion on dilution)

  • Soluble in organic solvents

• Density: Typically close to 0.90–1.05 g/mL (varies with solvent system)

• Flash Point: Generally high enough for safe handling but depends on solvent blend

• Emulsification behavior: Forms a stable oil-in-water emulsion when diluted

• Stability:

  • Stable under normal storage

  • Protect from extreme heat, frost, and direct sunlight

Active Ingredient (Myclobutanil) Properties

• Molecular Weight: 288.77 g/mol

• Melting Point: ~60–63°C

• Vapor Pressure: Very low (low volatility)

• Log P (Kow): ~2.9–3.5 (moderate lipophilicity)

• Stability: Stable to hydrolysis under normal conditions

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⭐ 4. Applications & Uses

Myclobutanil EC is used as a protective and curative fungicide in agriculture, horticulture, and specialty crops.

Target Diseases

• Powdery mildew

• Rusts

• Leaf spots

• Scabs

• Anthracnose (some species)

• Blight diseases

• Fruit rots

• Downy mildew (limited)

Common Crops

• Grapes

• Apples & pears

• Tomatoes & peppers

• Strawberries & berries

• Ornamentals

• Cereals (wheat, barley)

• Vegetables

• Cucurbits (melon, cucumber, pumpkin)

Mode of Action

• Inhibits C14-demethylase enzyme in fungal sterol synthesis

• Prevents ergosterol formation, disrupting fungal cell membranes

• Works systemically (absorbed and translocated in plant tissues)

Advantages of EC Formulation

• Easy to dilute and apply

• Excellent leaf coverage

• Good penetration and systemic movement

• High compatibility with many tank-mix partners

• Effective at low application concentrations

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⭐ 5. Safety & Handling Notes (General)

• EC formulations contain organic solvents—handle with care

• Avoid skin and eye contact

• Use appropriate PPE: gloves, mask, protective clothing

• Store away from heat, sparks, open flame

• Follow all local regulations for pesticide use