4-Butylbenzoic acid
4-Butylbenzoic acid (CAS: 20651-71-2), with the chemical formula CH3(CH2)3C6H4CO2H and a molecular weight of 178.23 g/mol, is a substituted benzoic acid derivative. This aromatic carboxylic acid is a valuable intermediate in organic synthesis. It finds utility in the development of materials science applications, including liquid crystals and organic electronics, serving as a key building block for more complex molecular structures.

Organic Synthesis Intermediate
4-Butylbenzoic acid serves as a versatile building block in the synthesis of various organic compounds. Its carboxylic acid functionality and alkyl-substituted aromatic ring allow for diverse chemical transformations.
Liquid Crystal Research
This compound is employed in the research and development of liquid crystal materials. Its molecular structure can contribute to the mesogenic properties required for display technologies.
Materials Science
As a precursor in materials science, 4-Butylbenzoic acid is utilised in the creation of novel polymers and organic electronic components. Its structure is amenable to modification for tailored material properties.
Organic Electronics
The compound is a useful intermediate for the synthesis of materials used in organic and printed electronics, contributing to the development of advanced electronic devices.
| Molecular weight | 178.23 |
|---|---|
| Linear formula | CH3(CH2)3C6H4CO2H |
| Assay | 99% |
| Melting point | 100-113 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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-Butylbenzoic acid used for?
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4-Butylbenzoic acid is primarily used as a building block in organic synthesis, with applications in materials science, liquid crystal research, and organic electronics.
What is the CAS number and chemical formula for 4-Butylbenzoic acid?
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The CAS number for 4-Butylbenzoic acid is 20651-71-2, and its chemical formula is CH3(CH2)3C6H4CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Butylbenzoic acid with a minimum assay of 99%. We do not represent this product as USP, EP, or BP grade.
How should 4-Butylbenzoic acid be handled safely?
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Handle 4-Butylbenzoic acid with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation and use a P1 (EN143) or N95 respirator filter if needed, as it is classified under WGK Germany 3.
Is 4-Butylbenzoic acid a controlled substance?
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Based on the provided data, 4-Butylbenzoic acid is not listed as a controlled substance.
How is 4-Butylbenzoic acid shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and can arrange for the safe and compliant packing and shipping of 4-Butylbenzoic acid worldwide.
How can I request a quote or sample of 4-Butylbenzoic acid?
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To request a quote or sample of 4-Butylbenzoic acid, please contact our sales team through the TSS website, providing your contact details and the quantity required.
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