Captan is a dicarboximide fungicide. It
is mainly used for horticultural crops.
- IUPAC: N-(trichloromethlythio) cyclohex-4-ene-1,2, dicarboximide
- Chemical formula: C9H8Cl3NO2S
- Molecular weight: 300.61 g mol-1
- Melting point: 174 degrees Celsius
- Boiling point: decomposes before it boils
- Solubility in water: at 20 degrees Celsius has a 5.2 value (low)
- Intermolecular forces present: Hydrogen bonds are located at each point of the carbon rings except for the 3 points that have oxygen and nitrogen . There are some polar bonds between the oxygens and carbons, and the nitrogen and sulfur. The oxygen carbon bonds cancel each other out but the nitrogen and sulfur make the molecule slightly polar. All these polar bonds cause dipole-dipole intermolecular forces. There are also dispersion forces at play in this molecule.