3-Benzoylpropionic acid
3-Benzoylpropionic acid (CAS: 2051-95-8) is a white to off-white crystalline solid with the molecular formula C6H5COCH2CH2COOH and a molecular weight of 178.18 g/mol. It functions as a valuable intermediate in organic synthesis, particularly in the creation of more complex molecules. This compound finds application in various chemical research and development processes, serving as a key building block for diverse chemical structures.
- IUPAC
- 4-Oxo-4-phenylbutyric acid
- Synonyms
- 4-Oxo-4-phenylbutyric acid

Organic Synthesis Intermediate
3-Benzoylpropionic acid is widely utilized as a building block in the synthesis of complex organic molecules. Its functional groups allow for various chemical transformations, making it a versatile reagent in research and development laboratories.
Pharmaceutical Precursor
This compound serves as a precursor in the multi-step synthesis of certain pharmaceutical agents. Its structure lends itself to modifications required for developing active pharmaceutical ingredients (APIs).
Research and Development
Used in academic and industrial research settings to explore novel chemical pathways and develop new materials. Its reactivity profile makes it a useful tool for synthetic chemists investigating new compounds.
| Molecular weight | 178.18 |
|---|---|
| Linear formula | C6H5COCH2CH2COOH |
| Assay | 99% |
| Melting point | 114-117 °C(lit.) |

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 | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| 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 3-Benzoylpropionic acid used for?
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3-Benzoylpropionic acid is primarily used as an intermediate in organic synthesis, a precursor in pharmaceutical development, and in general chemical research and development.
What are the CAS number and chemical formula for 3-Benzoylpropionic acid?
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The CAS number for 3-Benzoylpropionic acid is 2051-95-8, and its linear formula is C6H5COCH2CH2COOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Benzoylpropionic acid with a minimum assay of 99%. This product is intended for laboratory and research purposes and is not supplied as USP, BP, EP, or any pharmacopoeia grade.
How should 3-Benzoylpropionic acid be handled?
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Handle 3-Benzoylpropionic acid with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask type N95 (US). Avoid dust formation and ensure adequate ventilation. It is classified as an irritant to skin, eyes, and respiratory system.
How is 3-Benzoylpropionic acid packed and shipped?
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3-Benzoylpropionic acid is available for global export and is carefully packed to ensure safe transit. Please contact us for specific shipping and handling details relevant to your region.
How can I request a sample or a quote for 3-Benzoylpropionic acid?
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To request a sample or a quote, please visit our website or contact our sales department directly. Provide the product name and CAS number (2051-95-8) for prompt service.
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