Dioctyl phthalate (also known as DOP) is an organic compound. The following is an introduction to the properties, uses, manufacturing methods and safety information of DOP:

Nature:
- Appearance: DOP is a colorless to pale yellow liquid.
- Solubility: DOP is soluble in ethanol, ether, oils and organic solvents, and has very low solubility in water.

Purpose:
- Plasticizer: DOP is commonly used as a plasticizer for plastics. It can increase the softness and stretchability of plastics, and improve their flexural strength and cold resistance.
- Solvent: DOP can be used as a solvent for various resins and synthetic fibers, and is also applicable in the preparation of inks, adhesives and dyes.

Preparation:
The preparation of DOP usually uses phthalic acid and octanol as raw materials. The specific preparation method involves ester exchange reactions.

Safety information
DOP is a flammable liquid and should be kept away from open flames and heat sources.
Avoid skin contact and inhalation as DOP may irritate the skin and respiratory tract.
In case of leakage, appropriate protective measures should be taken, including wearing protective clothing and respiratory equipment, and the leaked substance should be cleared into an appropriate container.
When disposing of waste, please follow local laws and regulations.