Oxalate de bis(2,4,5-trichlorophényl-pentyle) (CPPO)

1. Photochemical reaction: It can be used in the fields of synthesis of organic compounds, catalytic reactions, photocatalytic materials, etc.
2. Oxygen detection: Since CPPO decomposes to produce oxygen under light conditions, it can be used for oxygen detection.
3. Luminescent agent: often used as a luminescent agent for the preparation of fluorescent materials, fluorescent dyes, fluorescent markers, etc.
4. Foaming agent: used as a foaming agent to prepare foam plastics, foam rubber, etc.
5. Oxidant: can be used in oxidation reactions to oxidize organic matter into corresponding products.

CPPO is often used in photosensitizers, luminescent agents, foaming agents, oxidants and other fields. 
It should be noted that CPPO is a toxic substance and needs to be handled with care to avoid inhalation and contact with skin and eyes.