4-Bromo-2,2-diphenylbutyric acid
4-Bromo-2,2-diphenylbutyric acid (CAS 37742-98-6) is an organic compound featuring a carboxylic acid group and a bromine atom, with two phenyl rings attached to the alpha-carbon. It is a valuable intermediate and building block in organic synthesis. Its structure lends itself to further functionalisation, making it useful in the preparation of more complex molecules for research and development in various chemical fields.
- Synonyms
- BrCH2CH2C(C6H5)2CO2H

Organic Synthesis Intermediate
This compound serves as a key intermediate in the synthesis of diverse organic molecules. The presence of both a carboxylic acid and a bromoalkyl moiety allows for a variety of chemical transformations, including esterification, amidation, and nucleophilic substitution reactions.
Research and Development
Used in academic and industrial research laboratories for exploring new synthetic pathways and developing novel compounds. It is particularly relevant in medicinal chemistry and materials science research where precise molecular architectures are required.
Building Block for Complex Molecules
Its diphenylbutyric acid core, functionalised with a bromine atom, makes it a useful starting material for constructing more complex chemical structures. The gem-diphenyl substitution pattern can influence the steric and electronic properties of the final products.
| Molecular weight | 319.19 |
|---|---|
| Linear formula | BrCH2CH2C(C6H5)2CO2H |
| Assay | 98% |
| Melting point | 131 °C (dec.)(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 4-Bromo-2,2-diphenylbutyric acid used for?
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4-Bromo-2,2-diphenylbutyric acid is primarily used as an intermediate and building block in organic synthesis and for research and development purposes in areas such as medicinal chemistry and materials science.
What are the CAS number and molecular formula?
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The CAS number for 4-Bromo-2,2-diphenylbutyric acid is 37742-98-6. The linear formula is BrCH2CH2C(C6H5)2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-2,2-diphenylbutyric acid with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated otherwise in the product specifications.
How should 4-Bromo-2,2-diphenylbutyric acid be handled?
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Based on GHS hazard statements, this compound is an irritant to the skin, eyes, and respiratory tract. Appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (type N95 or equivalent), should be used. Handle in a well-ventilated area.
Can Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and can export 4-Bromo-2,2-diphenylbutyric acid. Please contact us for specific export information and documentation.
How can I request a sample or quote?
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To request a sample or a quote for 4-Bromo-2,2-diphenylbutyric acid, please use the 'Request a Quote' or 'Sample Request' form on our website, or contact our sales department directly.
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