5-Fluoroindole-3-carboxaldehyde
5-Fluoroindole-3-carboxaldehyde (CAS: 2338-71-8, C9H6FNO) is a white to yellow crystalline solid with a molecular weight of 163.15 g/mol. This compound serves as a valuable building block in organic synthesis, particularly in the development of novel pharmaceuticals and functional materials. Its structure, featuring a fluorinated indole core with an aldehyde functionality, makes it a versatile intermediate for creating complex molecules with potential luminescent or biological properties.

Organic Synthesis Intermediate
Utilised as a key building block in multi-step organic synthesis pathways. The aldehyde group readily participates in various condensation and addition reactions, enabling the construction of diverse molecular scaffolds.
Pharmaceutical Research
A valuable intermediate in the discovery and development of new drug candidates. The fluorinated indole moiety is a common feature in biologically active compounds, suggesting potential applications in medicinal chemistry.
Materials Science
Investigated for its potential use in the development of functional materials, including luminescent compounds and probes. The electron-withdrawing fluorine atom can influence the electronic and photophysical properties of derived molecules.
| Molecular weight | 163.15 |
|---|---|
| Empirical formula | C9H6FNO |
| Assay | ≥99% |
| Form | crystalline |
| Colour | colorless to yellow |
| Storage temperature | −20°C |

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 5-Fluoroindole-3-carboxaldehyde primarily used for?
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5-Fluoroindole-3-carboxaldehyde is primarily used as a building block in organic synthesis, particularly for pharmaceutical research and the development of luminescent materials.
What is the CAS number and molecular formula for 5-Fluoroindole-3-carboxaldehyde?
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The CAS number is 2338-71-8, and the molecular formula is C9H6FNO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Fluoroindole-3-carboxaldehyde with an assay of ≥99%. This product is intended for research and laboratory use and is not supplied as USP, BP, EP, or pharmaceutical grade.
How should 5-Fluoroindole-3-carboxaldehyde be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is a Warning hazard, causing skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335).
How is 5-Fluoroindole-3-carboxaldehyde shipped and exported?
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As a global supplier and exporter since 1998, Tech Serve Solutions ships and exports chemicals worldwide, adhering to all relevant shipping regulations and documentation requirements.
How can I request a sample or quote for 5-Fluoroindole-3-carboxaldehyde?
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Please contact our sales team or use the product inquiry form on our website to request a sample or a quotation for 5-Fluoroindole-3-carboxaldehyde.
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