4,5,6,7-Tetrahydro-4-oxobenzofuran-5-acetic acid
4,5,6,7-Tetrahydro-4-oxobenzofuran-5-acetic acid (CAS: 145295-99-4) is a heterocyclic organic compound with the molecular formula C10H10O4 and a molecular weight of 194.18 g/mol. It serves as a valuable building block in chemical synthesis, particularly within organic chemistry and the development of complex molecules. Its structure lends itself to applications in research and the creation of novel compounds.
- IUPAC
- 4-Oxo-4,5,6,7-tetrahydrobenzo[b]furan-5-ylacetic acid
- Synonyms
- 7-Tetrahydro-4-oxobenzofuran-5-acetic acid4-Oxo-4,5,6,7-tetrahydrobenzo[b]furan-5-ylacetic acid

Organic Synthesis Intermediate
Utilised as a key intermediate in multi-step organic synthesis pathways. Its functional groups allow for diverse chemical transformations.
Research and Development
Employed in research laboratories for the exploration of new chemical entities and reaction mechanisms. It is suitable for developing novel compounds with potential applications in various scientific fields.
Building Block for Heterocycles
Serves as a foundational component for constructing more complex benzofuran derivatives and other heterocyclic systems. This is crucial in medicinal chemistry and materials science.
| Molecular weight | 194.18 |
|---|---|
| Empirical formula | C10H10O4 |
| Assay | 97% |
| Melting point | 120-125 °C |

Hazard statements
- H302Harmful if swallowed
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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 4,5,6,7-Tetrahydro-4-oxobenzofuran-5-acetic acid used for?
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This compound is primarily used as an intermediate and building block in organic synthesis and chemical research for the development of novel compounds.
What are the CAS number and molecular formula?
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The CAS number is 145295-99-4, and the molecular formula is C10H10O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 97%. It is suitable for research and technical applications; TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for this chemical?
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This chemical has a GHS07 symbol and a Warning signal word. It is harmful if swallowed (H302). Handle with appropriate personal protective equipment in a well-ventilated area.
How is 4,5,6,7-Tetrahydro-4-oxobenzofuran-5-acetic acid packed and shipped?
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This product is carefully packed according to industry standards to ensure safe transit and is exported globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or a sample, please contact the Tech Serve Solutions sales team via the website or direct inquiry.
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