Name: Tetraphenylphosphonium bromide
English Name: Tetraphenylphosphonium bromide
Molecular Formula: C₂₄H₂₀PBr
Molecular Weight: 419.29
CAS No: 2751-90-8
Structural Formula: 

1. Product Description
Off-white solid.
Melting point: 295～300 ℃.
Soluble in alcohols and chloroform, slightly soluble in water.

2. Applications
It is a phase transfer catalyst in organic synthesis, applicable to the synthesis of meta-aromatic fluorides.
It is used as phosphonium ylide precursor for Wittig reaction in the synthesis of fine chemicals, medicines and liquid crystal monomers.

3. Packaging
25kg/fiber drum, 25kg/waterproof kraft bag.

4. Specification
Purity: 99%

5. Precautions
Store in a dark, cool, dry and well-ventilated place.