Properties:

- Appearance: o-Chlorobenzaldehyde is a colorless or slightly yellow liquid.

- Odor: Has a distinctive aromatic odor.

- Solubility: Soluble in alcohols, ethers, and aldehydes.

Uses:

- It can also be used as a raw material for the synthesis of pesticides, insecticides, and mildew inhibitors.

Preparation:

- o-Chlorobenzaldehyde is typically prepared by reacting methyl chloride with benzaldehyde under acidic conditions.

- This reaction requires the presence of a catalyst, commonly used catalysts include platinum or rhodium complexes.

Safety Information:

- o-Chlorobenzaldehyde is an irritant and may cause irritation upon contact with skin and eyes.

- Appropriate safety precautions should be observed during use and handling, such as wearing protective gloves and eye protection.

- o-Chlorobenzaldehyde should be stored in a tightly closed container away from sources of ignition and high temperatures.