9-Oxofluorene-4-carboxylic acid
9-Oxofluorene-4-carboxylic acid (CAS: 6223-83-2), with the molecular formula C14H8O3 and a molecular weight of 224.21 g/mol, is a notable organic compound. It serves as a valuable building block and intermediate in chemical synthesis, particularly within organic chemistry research and development. Its structure lends itself to various functionalization reactions, making it a useful starting material for complex molecule construction.
- IUPAC
- 9-Fluorenone-4-carboxylic acid

Organic Synthesis Intermediate
Utilised as a foundational component in the synthesis of more complex organic molecules. Its fluorene core and carboxylic acid functionality allow for diverse chemical transformations.
Research and Development
Employed in academic and industrial R&D settings for exploring novel chemical pathways and developing new materials. It is a key reagent for chemists investigating structure-activity relationships.
Analytical Standards
Included in the catalogue as an analytical standard, supporting chromatographic and other analytical method development and validation.
| Molecular weight | 224.21 |
|---|---|
| Empirical formula | C14H8O3 |
| Assay | 97% |
| Grade | purum |
| Melting point | 225-227 °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 9-Oxofluorene-4-carboxylic acid used for?
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9-Oxofluorene-4-carboxylic acid is primarily used as an intermediate in organic synthesis and in research and development for creating novel chemical structures. It is also catalogued as an analytical standard.
What are the CAS number and formula for 9-Oxofluorene-4-carboxylic acid?
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The CAS number is 6223-83-2, and its molecular formula is C14H8O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 9-Oxofluorene-4-carboxylic acid in 'purum' grade with an assay of 97%. TSS does not represent this product as USP, BP, or EP grade.
What are the safety considerations for handling 9-Oxofluorene-4-carboxylic acid?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. The compound has a WGK rating of 3 in Germany, indicating a high hazard level.
How is 9-Oxofluorene-4-carboxylic acid packed and shipped?
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Tech Serve Solutions expertly packs and ships chemicals globally, adhering to all relevant regulations for safe and compliant export.
How can I request a quote or sample for 9-Oxofluorene-4-carboxylic acid?
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Please contact our sales team via our website or by phone to request a quote or a sample of 9-Oxofluorene-4-carboxylic acid.
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