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Methyltriphenylphosphonium Bromide

  • Product Name: Methyltriphenylphosphonium bromide
  • Other Names: bromomethane; Methyl triphenyl photriphenylphosphonium; Methyltriphenylphosphine bromide; methyltriphenyl-phosphoniubromide; Bromo(methyl)triphenylphosphorane; MethyltriphenylphosphoniumBromide; Triphenylmethylphosphonium Bromide; Methyl Triphenylphosphonium Bromide; (Methyl)triphenylphosphonium bromide; Methyl Triphenyl Phosphonium Bromide; Methyltriphenyl phosphorniuM broMide; Phosphonium,methyltriphenyl-,bromide; Phosphonium, methyltriphenyl-, bromide
  • Cas No.: 1779-49-3
  • Purity: 99%
  • MF: C19H18BrP
  • Appearance: White Powder
  • Package: Drum
  • Certificate: ISO
  • Application: it s a chemical compound that is often used as a phase-transfer catalyst in organic synthesis. Phase-transfer catalysts are substances used to facilitate the transfer of reactants between two immiscible phases, typically between an organic solvent and an aqueous solution.
  • Sample: Available

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Product Detail

Methyltriphenylphosphonium bromide is an organic compound with the formula (C6H5)3PCH3Br. It is a white crystal or crystalline powder that is stable at room temperature and pressure. Methyl triphenyl phosphine bromide is mainly used in organic synthesis as an important reagent and intermediate. It can participate in anion substitution reactions and is often used in electrophilic alkylation reactions. Because the methyl group on the phosphine atom in methyl triphenyl phosphine bromide has positive charge, it can carry out electrophilic alkylation reaction on the substance with strong electrophilicity.

Product Parameter

Synonyms bromomethane
Methyl triphenyl pho
Methyltriphenylphosphine bromide
Triphenylmethylphosphonium Bromide
Methyl Triphenylphosphonium Bromide
(Methyl)triphenylphosphonium bromide
Methyl Triphenyl Phosphonium Bromide
Methyltriphenyl phosphorniuM broMide
Phosphonium, methyltriphenyl-, bromide
Chemical Formula C19H18BrP CAS Number 1779-49-3
Molar mass 357.2314 EINECS 217-218-9
Appearance White Powder
Melting point 230-234 °C (lit.)
Vapor pressure 0.0000002 hPa
PH 6.0-6.5 (400g/l, H2O, 20°C)
Sensibility Hygroscopic
Flash point >240°C
Solubility H2O: 0.1g/mL, clear
Solubility in water 400 g/L (25 °C)
Storage condition Inert atmosphere,Room Temperature



1. Initiator: methyl triphenyl phosphine bromide can be used as an initiator of free radical polymerization. It reacts with bifunctional (such as olefin or azide compounds) to form free radicals that initiate polymerization reactions, thus promoting the formation of polymers.

2. Intermediate: methyl triphenyl phosphine bromide can be used as an intermediate to participate in organic synthesis reactions. It has electrophilic properties and can participate in electrophilic alkylation reactions, transferring methyl groups to other compounds.

3. Photosensitizer: chemical methyl triphenyl phosphine bromide can be used as a photosensitizer to participate in photochemical reactions. It can absorb light energy excitation, produce high-energy intermediates, and thus participate in photochemical reactions, such as photooxidation, photoreduction, and so on.

4. Phosphine chemical research: Because the phosphine atom in the methyltriphenyl phosphine bromide molecule has a positive charge, it can be used as a starting reagent and intermediate for studying phosphine chemical reactions or developing new phosphine compounds.

Multiple uses of products

It use in Chemical Manufacturing,Pharmaceutical Industry,Academic and Educational Institutions,Phosphonium Salt Derivatives