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A15733 (Formylmethyl)triphenylphosphonium chloride, 98+%

CAS Number
2-Oxoethyltriphenylphosphomium chloride

Stock No. Size Price ($) Quantity Availability
A15733-09 10g 27.70
A15733-18 50g 104.00
A15733-22 100g 188.00
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(Formylmethyl)triphenylphosphonium chloride, 98+%


Chemical Properties

Formula Weight
Melting point
ca 210° dec.
Storage & Sensitivity
Hygroscopic. Ambient temperatures.
Soluble in water.


(Formylmethyl)triphenylphosphonium Chloride is a useful Wittig reagent. Used as a reactant for Hydroazidation reactions in preparation of a-azido alcohols, Preparation of prodrug (2-hydroxyamino-vinyl)-triphenyl-phosphonium (HVTP) inhibitor of peroxidase activity and apoptosis and Intramolecular [4 + 3] cycloaddition reactions.


Hygroscopic. Store in cool dry place in tightly closed container. Store away from oxidizing agent and water/moisture.

Literature References

Klaus Banert; Christian Berndt; Samia Firdous; Manfred Hagedorn; Young-Hyuk Joo; Tobias Rüffer; Heinrich Lang. Extremely simple but long overlooked: generation of α-azido alcohols by hydroazidation of aldehydes. Angewandte Chemie. International edition in English. 2010, 49 (52), 10206-10209.

Detcho A Stoyanovsky; Irina I Vlasova; Natalia A Belikova; Alexandr Kapralov; Vladimir Tyurin; Joel S Greenberger; Valerian E Kagan. Activation of NO donors in mitochondria: peroxidase metabolism of (2-hydroxyamino-vinyl)-triphenyl-phosphonium by cytochrome c releases NO and protects cells against apoptosis. FEBS Letters. 2008, 582 (5), 725-728.

Undergoes the Wittig reaction with aldehydes to give acrylic aldehydes either in the presence of base or by prior conversion to the phosphorane. For references see (Formyl­methyl­ene)­triphenyl­phosphorane, A11709.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H318

Harmful if swallowed. Causes serious eye damage.

Precautionary Statements: P264b-P270-P280-P301+P312-P305+P351+P338-P310-P330-P501c

Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A11904

    Bromoform, 96%, stab. with ethanol
  • A13348

    Phosphorus(V) oxide, 98%
  • A15851

    Cyclohexylamine, 98+%
  • A16347

    (Ethoxycarbonylmethyl)triphenylphosphonium bromide, 98+%
  • A16938

    Dibromochloromethane, 97+%

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