2,2-Diphenylpropionic acid
2,2-Diphenylpropionic acid (CAS 5558-66-7) is an organic compound with the linear formula CH3C(C6H5)2CO2H and a molecular weight of 226.27 g/mol. This carboxylic acid serves as a valuable building block in chemical synthesis. Its structure, featuring two phenyl groups attached to the alpha carbon, makes it useful in the development of various organic molecules. Available from Tech Serve Solutions, it is supplied for research and development purposes.
- Synonyms
- CH3C(C6H5)2CO2H

Organic Synthesis Intermediate
2,2-Diphenylpropionic acid is employed as a key intermediate in the synthesis of more complex organic molecules. Its distinct diphenyl substitution pattern can be leveraged to introduce specific structural motifs into target compounds.
Research and Development
This compound is utilised in academic and industrial research laboratories for exploring novel chemical pathways and developing new materials or pharmaceutical candidates. It serves as a foundational component for diverse chemical investigations.
Building Block for Specialty Chemicals
The molecule's structure lends itself to the creation of specialty chemicals requiring its unique steric and electronic properties. It can be a precursor in the multi-step synthesis of fine chemicals.
| Molecular weight | 226.27 |
|---|---|
| Linear formula | CH3C(C6H5)2CO2H |
| Assay | 95% |
| Boiling point | 300 °C(lit.) |
| Melting point | 172-175 °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 2,2-Diphenylpropionic acid used for?
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2,2-Diphenylpropionic acid (CAS 5558-66-7) is primarily used as a building block in organic synthesis and for research and development purposes in chemical laboratories.
What are the CAS number and formula for 2,2-Diphenylpropionic acid?
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The CAS number for 2,2-Diphenylpropionic acid is 5558-66-7 and its linear formula is CH3C(C6H5)2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,2-Diphenylpropionic acid with an assay of 95%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade unless explicitly stated in the product documentation.
How should 2,2-Diphenylpropionic acid be handled safely?
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According to GHS, 2,2-Diphenylpropionic acid is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
Is 2,2-Diphenylpropionic acid exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 2,2-Diphenylpropionic acid.
How can I request a sample or quote for 2,2-Diphenylpropionic acid?
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To request a sample or quote for 2,2-Diphenylpropionic acid, please use the contact form on our website or contact our sales department directly.
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