Phenylpropargyl aldehyde
Phenylpropargyl aldehyde (CAS 2579-22-8) is an organic compound with the linear formula C<sub>6</sub>H<sub>5</sub>C≡CCHO and a molecular weight of 130.14 g/mol. This carbonyl compound functions as a valuable building block in organic synthesis. It is typically supplied with an assay of 96% and is an important intermediate for various chemical research and development applications.
- IUPAC
- 3-Phenyl-2-propynal,Phenylpropiolaldehyde
- Synonyms
- 3-Phenyl-2-propynalPhenylpropiolaldehyde

Organic Synthesis Intermediate
Phenylpropargyl aldehyde serves as a versatile building block in the synthesis of complex organic molecules. Its unique structure, featuring both an aldehyde and an alkyne moiety, allows for diverse chemical transformations.
Research and Development
This compound is utilised in R&D laboratories for exploring new reaction pathways and developing novel chemical entities. Its reactivity makes it a subject of interest for synthetic chemists.
Building Block for Specialty Chemicals
As an organic building block, phenylpropargyl aldehyde can be incorporated into the synthesis of specialty chemicals, potentially finding use in materials science or advanced chemical applications.
| Molecular weight | 130.14 |
|---|---|
| Linear formula | C6H5C≡CCHO |
| Assay | 96% |
| Boiling point | 118 °C/13 mmHg(lit.) |
| Density | 1.064 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.604(lit.) |
| Storage temperature | 2-8°C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 94 °C / 201.2 °F |
| Transport (UN / ADR) | UN 2810 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Phenylpropargyl aldehyde used for?
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Phenylpropargyl aldehyde is primarily used as an intermediate and building block in organic synthesis and for research and development purposes.
What are the CAS number and formula for Phenylpropargyl aldehyde?
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The CAS number is 2579-22-8, and the linear formula is C<sub>6</sub>H<sub>5</sub>C≡CCHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phenylpropargyl aldehyde with an assay of 96%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Phenylpropargyl aldehyde be handled safely?
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Phenylpropargyl aldehyde is classified with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Use appropriate personal protective equipment including eyeshields and gloves, and ensure adequate ventilation. Refer to the safety data sheet for comprehensive handling information.
How is Phenylpropargyl aldehyde packed and exported?
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Tech Serve Solutions packs and exports Phenylpropargyl aldehyde in compliance with all relevant transport regulations. Specific packaging details can be provided upon request.
How can I request a sample or quote for Phenylpropargyl aldehyde?
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To request a sample or quote for Phenylpropargyl aldehyde, please contact our sales department through the website or by telephone.
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