Folpet CAS No. 133-07-3
Agrochemicals 2025-03-02
Folpet
CAS No.: 133-07-3 | EC No.: 205-088-6
1. Chemical Identification
| Property | Specification |
|---|---|
| IUPAC Name | 2-[(trichloromethyl)sulfanyl]-1H-isoindole-1,3(2H)-dione |
| Molecular Formula | C₉H₄Cl₃NO₂S |
| Molecular Weight | 296.56 g/mol |
| Appearance | White to off-white crystalline powder |
| Melting Point | 177-180°C |
| Vapor Pressure | 1.1×10⁻⁵ Pa at 20°C |
| Refractive Index | 1.6000 (estimate) |
| Density | 1.72 g/cm³ |
Synonyms:
Phaltan, Folpan, N-(Trichloromethylthio)phthalimide
2. Key Applications
Agricultural Fungicide
- Target Crops:
✓ Cereals (wheat, rice)
✓ Vegetables (tomatoes, cucumbers)
✓ Fruit trees (apples, grapes) - Target Diseases:
✓ Powdery mildew
✓ Downy mildew
✓ Scab diseases
✓ Botrytis
Biological Effects
- Stimulates plant growth at sub-fungicidal doses
- Enhances natural defense mechanisms
3. Product Advantages
✔ Broad-Spectrum Activity – Controls multiple fungal pathogens
✔ Tank-Mix Compatibility – Works with most common pesticides
✔ Growth Stimulation – Improves plant vigor
✔ Resistance Management – Low risk of pathogen resistance
4. Physical & Chemical Properties
- Solubility:
- Water: 1.4 mg/L at 20°C
- Organic solvents: Soluble in acetone, xylene
- Stability:
- Stable in neutral/acidic conditions
- Decomposes in strong alkalis
5. Handling & Storage
| Parameter | Requirement |
|---|---|
| Storage Temp | <30°C in dry conditions |
| Packaging | 25kg fiber drums with liner |
| Shelf Life | 36 months |
| Special Notes | Keep away from alkaline materials |
6. Safety Information
Warning!
- H317: May cause allergic skin reaction
- H319: Causes serious eye irritation
- H410: Very toxic to aquatic life
Protective Measures:
- P280: Wear protective gloves/eye protection
- P273: Avoid release to environment
- P501: Dispose of contents properly
7. Quality Specifications
- Purity: ≥95% (HPLC)
- Related Substances: ≤3.0%
- Water Content: ≤0.5%
Disclaimer:
This information is for professional users only. Always follow label instructions and wear proper PPE. Compliance with local pesticide regulations is mandatory.

