Butyrophenone
Butyrophenone (CAS 495-40-9), with the linear formula C 6 H 5 COCH 2 CH 2 CH 3 and a molecular weight of 148.20 g/mol, is a ketone compound. It serves as a valuable building block in chemical synthesis. Primarily utilised in research settings, it has been employed in studies investigating surfactant behaviour and in generating specific ionic species for analytical purposes.
- IUPAC
- Phenyl propyl ketone
- Synonyms
- Phenyl propyl ketone

Surfactant Research
Butyrophenone has been used in scientific studies to investigate the relationship between electrolyte counter-ion concentration and the critical micelle concentration (CMC) of various surfactants.
Mass Spectrometry Studies
This compound has been utilised in research to generate phenyl propyl ketone (PhCO+) ions through electron ionisation, aiding in the understanding of fragmentation patterns in mass spectrometry.
Organic Synthesis Intermediate
As a ketone and a building block, Butyrophenone is employed in organic synthesis for the preparation of more complex molecules and as a precursor in various chemical transformations.
| Molecular weight | 148.20 |
|---|---|
| Linear formula | C6H5COCH2CH2CH3 |
| Assay | ≥99% |
| Boiling point | 228-230 °C(lit.) |
| Density | 1.021 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.520(lit.) |
| Application | Butyrophenone has been used to study the relationship between the electrolyte counter-ion concentration and the critical micelle concentration for several surfactants1. It has been used to generate PhCO+ ions by 70 eV electron ionization2. |
| Melting point | 11-13 °C(lit.) |


Hazard statements
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 97 °C / 206.6 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 41-43 |
| Safety statements (S) | 26-36/37/39 |
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 Butyrophenone used for?
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Butyrophenone is used in research, particularly in studies on surfactant behaviour and in mass spectrometry for generating specific ions. It also serves as a building block in organic synthesis.
What is the CAS number and formula for Butyrophenone?
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The CAS number for Butyrophenone is 495-40-9 and its linear formula is C 6 H 5 COCH 2 CH 2 CH 3 .
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Butyrophenone with a purity of ≥99% . We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product data.
How should Butyrophenone be handled safely?
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Butyrophenone is classified as Danger, causing serious eye damage and potentially skin sensitisation (H317-H318). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection, must be used. Consult the safety data sheet for comprehensive handling guidelines.
Is Butyrophenone a controlled substance?
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The provided data does not indicate that Butyrophenone is a controlled substance.
How is Butyrophenone packed, shipped, and exported?
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Tech Serve Solutions packs and ships chemicals in compliance with international regulations. As a global supplier and exporter, we handle all necessary export documentation and logistics to ensure safe and compliant delivery worldwide.
How can I request a quote or sample for Butyrophenone?
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To request a quote or a sample of Butyrophenone, please contact our sales department through the inquiry form on our website or by calling us directly. Our team will be pleased to assist you.
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