4-Phenyl-2-butanone
4-Phenyl-2-butanone (CAS: 2550-26-7) is an organic compound with the linear formula C 6 H 5 CH 2 CH 2 COCH 3 and a molecular weight of 148.20 g/mol. This ketone, also known as benzylacetone, serves as a valuable building block in organic synthesis and finds application in research settings, including cell biology and nutrition research. Its chemical structure makes it a useful intermediate for more complex molecules.
- IUPAC
- Benzylacetone
- Synonyms
- Benzylacetone1-Phenyl-3-butanoneBenzylacetone

Organic Synthesis Intermediate
4-Phenyl-2-butanone is utilized as a key intermediate in the synthesis of various organic compounds. Its reactive carbonyl group and phenyl ring allow for diverse chemical transformations.
Research and Development
This compound is employed in laboratory research, particularly within cell biology and nutrition research. It aids in the investigation of biological pathways and the development of novel compounds.
Building Block for Complex Molecules
As an organic building block, 4-Phenyl-2-butanone is instrumental in constructing more complex molecular architectures for various scientific applications.
| Molecular weight | 148.20 |
|---|---|
| Linear formula | C6H5CH2CH2COCH3 |
| Assay | 98% |
| Boiling point | 235 °C(lit.) |
| Density | 0.989 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.512(lit.) |

Hazard statements
- H315Causes skin irritation
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 105 °C / 221 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 38 |
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 4-Phenyl-2-butanone used for?
+
4-Phenyl-2-butanone is primarily used as a building block in organic synthesis and in research areas such as cell biology and nutrition research.
What is the CAS number and formula for 4-Phenyl-2-butanone?
+
The CAS number is 2550-26-7, and the linear formula is C 6 H 5 CH 2 CH 2 COCH 3 .
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-Phenyl-2-butanone with an assay of 98%. We do not represent this product as USP, BP, or EP grade unless explicitly stated.
How should 4-Phenyl-2-butanone be handled safely?
+
4-Phenyl-2-butanone is classified as a Warning with hazard statement H315 (Causes skin irritation). Appropriate personal protective equipment, including gloves, goggles, and face shields, should be used. Ensure adequate ventilation and consult the Safety Data Sheet for detailed handling instructions.
How is 4-Phenyl-2-butanone packed and shipped?
+
Tech Serve Solutions exports fine chemicals globally, ensuring appropriate packaging for safe transport. Specific packaging details can be provided upon request.
How can I request a quote or sample for 4-Phenyl-2-butanone?
+
To request a quote or sample of 4-Phenyl-2-butanone, please contact our sales team through the website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis