Potassium indole-5-trifluoroborate
Potassium indole-5-trifluoroborate (CAS: 1111733-03-9), with the empirical formula C8H6BF3KN and a molecular weight of 223.04 g/mol, is a trifluoroborate salt used in organic synthesis. It serves as a valuable reagent in cross-coupling reactions, enabling the formation of carbon-carbon bonds. Its applications are primarily within chemical research and development for the synthesis of complex organic molecules and novel compounds.
- IUPAC
- Potassium 5-indolyltrifluoroborate

Organic Synthesis Reagent
This compound functions as a versatile building block in organic synthesis, particularly in palladium-catalysed cross-coupling reactions like the Suzuki-Miyaura coupling. It allows for the efficient introduction of the indole-5-yl moiety into various molecular scaffolds.
Pharmaceutical Intermediate Development
The indole core is prevalent in many biologically active molecules. Potassium indole-5-trifluoroborate can be employed in the synthesis of potential pharmaceutical agents and drug discovery programs, facilitating the creation of novel indole-containing drug candidates.
Materials Science Research
Organoboron compounds, including trifluoroborates, find applications in materials science for the development of new polymers, organic light-emitting diodes (OLEDs), and other functional materials where specific electronic or structural properties are required.
| Molecular weight | 223.04 |
|---|---|
| Empirical formula | C8H6BF3KN |
| Assay | 96% |
| Melting point | 173-181 °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
| Water hazard class (WGK, DE) | 2 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37/39 |
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 Potassium indole-5-trifluoroborate used for?
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Potassium indole-5-trifluoroborate is primarily used as a reagent in organic synthesis, especially for palladium-catalysed cross-coupling reactions to introduce the indole-5-yl group into complex molecules. It is valuable in pharmaceutical intermediate development and materials science research.
What is the CAS number and formula for Potassium indole-5-trifluoroborate?
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The CAS number for Potassium indole-5-trifluoroborate is 1111733-03-9, and its empirical formula is C8H6BF3KN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium indole-5-trifluoroborate with an assay of 96%. This product is intended for research and chemical synthesis purposes and is not represented as USP, BP, EP, or pharmacopoeia grade.
What are the safety and handling precautions for this chemical?
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Potassium indole-5-trifluoroborate is classified as a Warning. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area. Avoid contact with skin, eyes, and clothing. In case of contact, rinse cautiously with water for several minutes and seek medical advice if irritation persists.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions packs and exports Potassium indole-5-trifluoroborate adhering to all relevant international shipping and chemical handling regulations. Specific packaging details can be provided upon request.
How can I request a sample or a quote for Potassium indole-5-trifluoroborate?
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To request a sample or a quote for Potassium indole-5-trifluoroborate, please contact our sales team through the website or by direct inquiry. Please specify the quantity and your shipping destination.
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