7-Nitro-9-oxo-4-fluorenecarboxylic acid
7-Nitro-9-oxo-4-fluorenecarboxylic acid (CAS: 42523-38-6; C14H7NO5) is a specialised organic compound with a molecular weight of 269.21 g/mol. As a fluorinated carboxylic acid derivative, it serves as a valuable building block in organic synthesis. This compound is primarily utilised in research and development settings for the creation of novel molecules and materials. Its functional groups make it suitable for various chemical transformations.

Organic Synthesis Intermediate
This compound functions as a key intermediate in multi-step organic synthesis. Its reactive carboxylic acid and nitro functionalities allow for diverse chemical modifications, enabling the construction of complex molecular architectures.
Research and Development
Utilised in academic and industrial laboratories for exploring new chemical pathways and developing novel compounds. It is particularly useful in the synthesis of specialised organic molecules for advanced materials or pharmaceutical research.
Building Block for Complex Molecules
The unique structure of 7-Nitro-9-oxo-4-fluorenecarboxylic acid makes it an excellent starting material for synthesising more complex organic structures, including potential bioactive compounds.
| Molecular weight | 269.21 |
|---|---|
| Empirical formula | C14H7NO5 |
| Melting point | 269-270 °C(lit.) |

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) | 3 |
| 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 7-Nitro-9-oxo-4-fluorenecarboxylic acid used for?
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7-Nitro-9-oxo-4-fluorenecarboxylic acid is primarily used as a building block in organic synthesis and for research and development purposes in the creation of novel molecules and materials.
What are the CAS number and formula for 7-Nitro-9-oxo-4-fluorenecarboxylic acid?
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The CAS number is 42523-38-6 and the empirical formula is C14H7NO5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound for research and development purposes. Purity and grade information are available on the product's Certificate of Analysis. We do not represent this product as USP, BP, or EP grade.
How should 7-Nitro-9-oxo-4-fluorenecarboxylic acid be handled safely?
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This compound is classified as a warning substance. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used. Ensure good ventilation.
Is 7-Nitro-9-oxo-4-fluorenecarboxylic acid available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 7-Nitro-9-oxo-4-fluorenecarboxylic acid, which can be shipped worldwide.
How can I request a sample or quote?
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To request a sample or a quotation for 7-Nitro-9-oxo-4-fluorenecarboxylic acid, please contact our sales department through the website or by calling us directly.
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