Butyl isocyanide
ALDRICH/133280 - 97%
Synonym: 1-Butylisonitrile; 1-Isocyanobutane; Butyl isonitrile; n-Butyl isocyanide; n-Butyl isonitrile
CAS Number: 2769-64-4
Empirical Formula (Hill Notation): C5H9N
Molecular Weight: 83.13
EC Number: 220-458-7
MDL Number: MFCD00000008
Linear Formula: CH3(CH2)3NC
Product Type: Chemical
| assay | 97% |
| density | 0.795 g/mL at 25 °C (lit.) |
| form | liquid |
| functional group | amine |
| isonitrile | |
| InChI | 1S/C5H9N/c1-3-4-5-6-2/h3- |
| InChI key | FSBLVBBRXSCOKU-UHFFFAOYSA |
| Quality Level | 100 ![]() |
| refractive index | n |
| SMILES string | CCCC[N+]#[C-] |
| storage temp. | 2-8°C |
| Application: | Butyl isocyanide was used to study the crystal structure of carbon monoxide dehydrogenases-II isolated from Carboxydothermus hydrogenoformans. It was used to probe the mechanism of NO activation of the hemoprotein soluble guanylate cyclase. . |
| Biochem/physiol Actions: | Butyl isocyanide forms complex with ferric and ferrous iron of the heme in cytochrome P450. |
| Other Notes: | May form haziness and/or precipitate with no loss in purity. |
| Packaging: | 1, 5 g in ampule |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H302 + H312 + H332 |
| Precautionary statements | P210 - P233 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-20/21/22-37 |
| Safety Statements | 7-16-23-36/37/39 |
| RIDADR | UN 1993BE 3 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 69.8 °F - closed cup |
| Flash Point(C) | 21 °C - closed cup |
| Purity | 97% |
| Density | 0.795 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |



