5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid
5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid (CAS 4065-45-6, C14H12O6S) is a chemical compound with a molecular weight of 308.31 g/mol. It serves as a valuable organic building block in chemical synthesis. Supplied by Tech Serve Solutions with a purity of ≥97.0% (HPLC), this substance is primarily utilised in laboratory research and the development of novel organic compounds, contributing to advancements in various chemical disciplines.
- IUPAC
- HMBS,Sulisobenzone

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of more complex organic molecules. Its functional groups allow for diverse chemical transformations, making it suitable for constructing targeted molecular architectures.
Research and Development
Employed in academic and industrial R&D settings for exploring new synthetic routes and developing novel materials. Its structure offers potential for incorporation into diverse chemical research projects.
Building Block for Specialty Chemicals
Functions as a foundational component in the creation of specialty chemicals. The sulfonic acid and hydroxyl groups provide reactive sites for derivatisation and functionalisation in bespoke chemical applications.
| Molecular weight | 308.31 |
|---|---|
| Empirical formula | C14H12O6S |
| Assay | ≥97.0% (HPLC) |
| Impurities tested | ≤10% water |

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) | 1 |
| 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 5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid used for?
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5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid is primarily used as an organic building block in chemical synthesis and for research and development purposes in academic and industrial laboratories.
What is the CAS number and chemical formula for this compound?
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The CAS number is 4065-45-6 and the empirical formula is C14H12O6S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of ≥97.0% (HPLC). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. This compound may cause skin irritation, eye irritation, and respiratory irritation (H315-H319-H335).
Is this chemical available for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, and can arrange shipment worldwide.
How can I request a sample or quote?
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To request a sample or a quote, please contact our sales team directly through the website or by phone, providing the product name and CAS number.
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