Methyl isocyanide
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Not to be confused with Methyl isocyanate.
Methyl isocyanide or isocyanomethane is an organic compound and a member of the isocyanide family. This colorless liquid is isomeric and isoelectronic to methyl cyanide (acetonitrile), but its reactivity is very different. In contrast to the faintly sweet, ethereal odor of acetonitrile, the smell of methyl isocyanide, like that of other simple volatile isocyanides, is distinctly penetrating and vile.[1] Methyl isocyanide is mainly used for making 5-membered heterocyclic rings. The C-N distance in methyl isocyanide is very short, 1.158 Å as is characteristic of isocyanides. [2]
Quick Facts Names, Identifiers ...
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IUPAC name
Isocyanomethane | |
Other names
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3D model (JSmol) |
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ChEBI | |
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ECHA InfoCard | 100.008.917 |
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CompTox Dashboard (EPA) |
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Properties | |
C2H3N | |
Molar mass | 41.053 g·mol−1 |
Appearance | Colorless liquid |
Density | 0.69 g/mL |
Melting point | −45 °C (−49 °F; 228 K) |
Boiling point | 59 to 60 °C (138 to 140 °F; 332 to 333 K) |
Miscible | |
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H302, H312, H332, H373 | |
P260, P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P312, P314, P322, P330, P363, P501 | |
NFPA 704 (fire diamond) | |
Related compounds | |
Related compounds |
acetic acid, acetamide, ethylamine, Acetonitrile |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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