Butyl isocyanide
Butyl isocyanide (CAS: 2769-64-4) is an organic compound with the formula CH3(CH2)3NC and a molecular weight of 83.13 g/mol. This flammable liquid serves as a valuable building block in chemical synthesis. Its characteristic isocyanide functionality makes it useful in specialized research applications, including the study of enzyme mechanisms and protein crystallography, as demonstrated in scientific literature.

Enzyme Mechanism Studies
Butyl isocyanide has been utilised in research to investigate the mechanisms of enzymes such as carbon monoxide dehydrogenases-II. This aids in understanding complex biochemical pathways.
Protein Crystallography
The compound has been employed in studies to determine the crystal structure of specific enzymes, providing insights into their three-dimensional conformation and active sites.
NO Activation Research
It has been used as a probe to explore the activation mechanism of nitric oxide (NO) by hemeprotein soluble guanylate cyclase, contributing to pharmacological research.
| Molecular weight | 83.13 |
|---|---|
| Linear formula | CH3(CH2)3NC |
| Assay | 97% |
| Density | 0.795 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.396(lit.) |
| Storage temperature | 2-8°C |
| Application | Butyl isocyanide was used to study the crystal structure of carbon monoxide dehydrogenases-II isolated from Carboxydothermus hydrogenoformans1. It was used to probe the mechanism of NO activation of the hemoprotein soluble guanylate cyclase2. . |


Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 21 °C / 69.8 °F |
| Transport (UN / ADR) | UN 1993BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-20/21/22-37 |
| Safety statements (S) | 7-16-23-36/37/39 |
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 Butyl isocyanide used for?
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Butyl isocyanide is used as a building block in chemical synthesis and in specialised research applications, such as studying enzyme mechanisms and protein crystal structures.
What is the CAS number and formula for Butyl isocyanide?
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The CAS number for Butyl isocyanide is 2769-64-4 and its linear formula is CH3(CH2)3NC.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Butyl isocyanide with a minimum assay of 97%. We do not represent this product as USP, BP, EP or other pharmacopoeial grades.
How should Butyl isocyanide be handled safely?
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Butyl isocyanide is a highly flammable liquid and vapour (H225) and is harmful if swallowed, in contact with skin, or if inhaled (H302-H312-H332). Appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, must be worn. Handle in a well-ventilated area away from ignition sources.
Does TSS export Butyl isocyanide?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Butyl isocyanide.
How can I request a quote or sample?
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To request a quote or sample of Butyl isocyanide, please contact our sales team through the website or by phone.
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