Name: Butyltriphenylphosphonium bromide
English: n-Butyltriphenylphosphonium bromide
Molecular Formula: C₂₂H₂₄PBr
Molecular Weight: 399.30
CAS No: 1779-51-7
Structural Formula: 

1. Product Description
Off-white solid.
Melting point: 238～242 ℃.
Soluble in alcohols and chloroform, slightly soluble in water.

2. Applications
It is a phase-transfer catalyst in organic synthesis, suitable for the synthesis of meta-aromatic fluorides.
It serves as a phosphonium ylide precursor for Wittig reactions in the synthesis of fine chemicals, pharmaceuticals and liquid crystal monomers.

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

4. Specification
Purity: 99%

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