4-Bromobutyric acid
4-Bromobutyric acid (CAS 2623-87-2), with the linear formula Br(CH <sub>2</sub> )<sub>3</sub>COOH and a molecular weight of 167.00 g/mol, is a carboxylic acid featuring a terminal bromine atom. This bifunctional molecule serves as a versatile building block in organic synthesis. Its structure allows for reactions at both the carboxyl group and the alkyl halide moiety, making it valuable for introducing butyric acid chains or as a linker in complex molecule construction.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of more complex organic molecules. Its dual functionality permits sequential or selective reactions, enabling the formation of diverse chemical structures.
Building Block for Pharmaceuticals
Serves as a fundamental building block in the development of pharmaceutical compounds. The molecule can be incorporated into drug candidates to impart specific chemical properties or facilitate further functionalization.
Linker Molecule
Functions as a linker or crosslinker in various chemical applications, particularly in bioconjugation or material science. The four-carbon chain provides a defined spacer length between reactive sites.
Research and Development
Employed in academic and industrial research laboratories for exploring new synthetic pathways and developing novel chemical entities. It is a valuable reagent for researchers in medicinal chemistry and materials science.
| Molecular weight | 167.00 |
|---|---|
| Linear formula | Br(CH2)3COOH |
| Assay | 98% |
| Boiling point | 128-131 °C/11 mmHg(lit.) |
| Melting point | 30-31 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 110 °C / 230 °F |
| Transport (UN / ADR) | UN 3261 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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-Bromobutyric acid used for?
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4-Bromobutyric acid is primarily used as an intermediate and building block in organic synthesis, including the development of pharmaceuticals and as a linker molecule in chemical research.
What is the CAS number and formula for 4-Bromobutyric acid?
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The CAS number for 4-Bromobutyric acid is 2623-87-2, and its linear formula is Br(CH <sub>2</sub> )<sub>3</sub>COOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromobutyric acid with a minimum assay of 98%. This product is typically supplied for research and chemical synthesis purposes and is not represented as USP, BP, EP, or other pharmacopoeia grades.
How should 4-Bromobutyric acid be handled safely?
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4-Bromobutyric acid is a Danger hazard (H314), causing severe skin burns and eye damage. Appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection (e.g., N100 or P3 filters), must be worn. Handle only in well-ventilated areas.
How is 4-Bromobutyric acid packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports chemicals in compliance with all relevant international and domestic regulations. Packaging is designed to ensure product integrity and safety during transit. Specifics for UN 3261, Class 8, PGIII apply.
How can I request a quote or sample of 4-Bromobutyric acid?
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To request a quote or sample of 4-Bromobutyric acid, please contact our sales department via the website or by calling our customer service line. Our team will be pleased to assist you with your inquiry.
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