Butyl 4-hydroxybenzoate
Butyl 4-hydroxybenzoate (CAS 94-26-8) is an organic ester with the chemical formula HOC6H4CO2(CH2)3CH3. This compound, also known as n-butyl p-hydroxybenzoate, serves as a valuable building block in chemical synthesis. Its ester and phenolic functionalities make it suitable for various organic reactions and as an intermediate in the production of more complex molecules. It is a key ingredient in the synthesis of materials and pharmaceuticals.
- IUPAC
- p-Hydroxybenzoic acid n-butyl ester,Butyl paraben,SPF

Chemical Synthesis Intermediate
Butyl 4-hydroxybenzoate is utilized as a versatile intermediate in organic synthesis. Its structure allows for further chemical modifications, making it a useful precursor for the development of fine chemicals and active pharmaceutical ingredients.
Building Block for Organic Molecules
This compound functions as a fundamental building block in the construction of larger organic molecules. Its ester and phenolic groups offer reactive sites for various synthetic pathways.
Material Science Applications
It can be employed in the synthesis of specialized polymers or materials where its specific chemical structure contributes desired properties. Further research may reveal applications in advanced material development.
| Molecular weight | 194.23 |
|---|---|
| Linear formula | HOC6H4CO2(CH2)3CH3 |
| Assay | ≥99.0% (GC) |
| Grade | SAJ first grade |
| Boiling point | 156-157 °C/3.5 mmHg(lit.) |
| Melting point | 67-70 °C(lit.)68-70 °C |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 2 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Availability | available only in Japan |
|---|
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 Butyl 4-hydroxybenzoate used for?
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Butyl 4-hydroxybenzoate is primarily used as a building block and intermediate in chemical synthesis for the production of fine chemicals, pharmaceuticals, and potentially advanced materials.
What are the CAS number and chemical formula for Butyl 4-hydroxybenzoate?
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The CAS number for Butyl 4-hydroxybenzoate is 94-26-8, and its chemical formula is HOC6H4CO2(CH2)3CH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Butyl 4-hydroxybenzoate in SAJ first grade with an assay of ≥99.0% (GC). We do not represent this product as USP, BP, or EP grade.
How should Butyl 4-hydroxybenzoate be handled safely?
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When handling Butyl 4-hydroxybenzoate, it is essential to wear safety goggles and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if airborne exposure is possible. Avoid contact with eyes and skin, and ensure adequate ventilation.
Is Butyl 4-hydroxybenzoate a controlled substance?
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The provided data does not indicate that Butyl 4-hydroxybenzoate (CAS 94-26-8) is a controlled substance.
How is Butyl 4-hydroxybenzoate typically packed and shipped?
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Information on specific packing and shipping methods is not detailed, but as a global supplier, TSS exports chemicals adhering to international shipping regulations. Availability is currently limited to Japan.
How can I request a quote or sample for Butyl 4-hydroxybenzoate?
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To request a quote or sample of Butyl 4-hydroxybenzoate, please contact the Tech Serve Solutions sales team through our official channels.
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