Cinnoline-4-carboxylic acid
Cinnoline-4-carboxylic acid (CAS 21905-86-2) is a heterocyclic organic compound with the molecular formula C9H6N2O2 and a molecular weight of 174.16 g/mol. This pyridazine derivative serves as a valuable building block in organic synthesis, particularly within the fields of chemical and pharmaceutical research. Its specific structural features make it suitable for incorporation into more complex molecular architectures.

Organic Synthesis Intermediate
Cinnoline-4-carboxylic acid is employed as a key intermediate in the synthesis of diverse organic compounds. It facilitates the construction of novel molecules with potential applications in medicinal chemistry and materials science.
Heterocyclic Chemistry Research
As a substituted cinnoline, this compound is of interest in heterocyclic chemistry research. It can be utilised to explore structure-activity relationships and develop new synthetic methodologies.
Pharmaceutical Research and Development
The cinnoline scaffold is present in various biologically active compounds. Cinnoline-4-carboxylic acid can act as a precursor for the synthesis of potential drug candidates.
| Molecular weight | 174.16 |
|---|---|
| Empirical formula | C9H6N2O2 |
| Assay | 97% |
| Melting point | 175 °C (dec.)(lit.) |
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 Cinnoline-4-carboxylic acid used for?
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Cinnoline-4-carboxylic acid is primarily used as a building block in organic synthesis, particularly for the development of new chemical entities in pharmaceutical and heterocyclic chemistry research.
What are the CAS number and formula for Cinnoline-4-carboxylic acid?
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The CAS number for Cinnoline-4-carboxylic acid is 21905-86-2, and its empirical formula is C9H6N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cinnoline-4-carboxylic acid with an assay of 97%. We do not represent this product as USP, BP, EP, or for nutraceutical/food use.
How should Cinnoline-4-carboxylic acid be handled and stored?
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Cinnoline-4-carboxylic acid is classified with WGK Germany 3. Handle with appropriate personal protective equipment in a well-ventilated area. Store in a cool, dry place, away from incompatible materials. Consult the Safety Data Sheet (SDS) for comprehensive safety information.
Can Tech Serve Solutions export Cinnoline-4-carboxylic acid?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Cinnoline-4-carboxylic acid.
How can I request a sample or quote for Cinnoline-4-carboxylic acid?
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To request a sample or quote, please contact our sales team through the website or by phone, providing your specific requirements.
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