Tetrabutylammonium cyanoborohydride
Tetrabutylammonium cyanoborohydride (CAS 43064-96-6) is a versatile chemical reagent with a molecular weight of 282.32. Its unique structure makes it effective in various synthetic applications, particularly as a reductant. It is widely utilized in organic synthesis for specific reduction reactions, hydroxymethylation, and radical carbonylation processes. Supplied by Tech Serve Solutions, it serves as a valuable tool for researchers and industrial chemists.
- IUPAC
- Tetrabutylammonium cyanotrihydroborate

Hydroxymethylation Reactions
Tetrabutylammonium cyanoborohydride serves as a key reactant in hydroxymethylation reactions. This application allows for the introduction of a hydroxymethyl group into organic molecules, a valuable transformation in synthetic chemistry.
Radical Carbonylation Reactions
This compound is employed in radical carbonylation reactions. These processes are essential for incorporating carbonyl groups into molecules via radical intermediates, expanding synthetic possibilities.
Selective Reduction Reactions
As a reductant, Tetrabutylammonium cyanoborohydride is utilized for selective reduction reactions. It offers a controlled method for reducing specific functional groups within a complex molecular framework.
| Molecular weight | 282.32 |
|---|---|
| Linear formula | (CH3CH2CH2CH2)4N(BH3CN) |
| Application | Reactant for:• Hydroxymethylation reactions1• Radical carbonylation reactions2• Reduction reactions (reductant)3 |
| Melting point | 144-146 °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 Tetrabutylammonium cyanoborohydride used for?
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Tetrabutylammonium cyanoborohydride (CAS 43064-96-6) is used as a reactant in hydroxymethylation reactions, radical carbonylation reactions, and as a reductant in various reduction reactions within organic synthesis.
What are the CAS number and molecular formula for Tetrabutylammonium cyanoborohydride?
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The CAS number for Tetrabutylammonium cyanoborohydride is 43064-96-6. The linear formula is (CH3CH2CH2CH2)4N(BH3CN), and its molecular weight is 282.32.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetrabutylammonium cyanoborohydride. As specific assay details are not provided, it is suitable for research and general chemical synthesis purposes. TSS does not represent this product as meeting USP/BP/EP pharmacopoeia standards.
What are the main hazards associated with Tetrabutylammonium cyanoborohydride?
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Tetrabutylammonium cyanoborohydride is classified with Warning signal word. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (type N95), should be used during handling.
How is Tetrabutylammonium cyanoborohydride packed, shipped, and exported?
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Tetrabutylammonium cyanoborohydride is carefully packed to ensure integrity during transit and is available for domestic and international export. Specific packaging details will be provided upon request.
How can I request a sample or quote for Tetrabutylammonium cyanoborohydride?
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To request a sample or a quote for Tetrabutylammonium cyanoborohydride, please contact our sales team through the website or by phone. Please specify the quantity required.
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