Overview
Methyl isocyanide (CH3NC) is a volatile organic compound belonging to the isocyanide family, characterized by its –NC functional group. It is structurally similar to methyl cyanide (acetonitrile) but exhibits distinct reactivity due to the isocyanide moiety. Primarily utilized in research and specialty chemical synthesis, it serves as a ligand in coordination chemistry and a building block for heterocyclic compounds. The compound was first synthesized in the 19th century and gained prominence in the 1960s for its role in studying reaction mechanisms. Today, it remains a niche chemical with limited industrial-scale applications, though it is valuable in academic and pharmaceutical research settings.
Physical and Chemical Properties
Methyl isocyanide is a colorless liquid at room temperature with a boiling point of 59-60°C, though it is often handled as a gas due to its high volatility. Its density (0.687 g/cm³) is lower than water, and it emits a strongly unpleasant odor detectable at low concentrations. The molecule’s linear –NC group contributes to its polarity and reactivity. Chemically, CH3NC is unstable under acidic conditions, undergoing hydrolysis to form methylamine and carbon monoxide. It reacts with transition metals to form coordination complexes and participates in [2+1] cycloadditions. Notably, it isomerizes to acetonitrile (CH3CN) at elevated temperatures (>400°C), a process studied in astrochemistry.
Main Applications
In organic synthesis, methyl isocyanide acts as a C1 building block for imidazoles, oxazoles, and other N-heterocycles. Its ability to insert into metal-carbon bonds makes it useful for creating metal-isocyanide complexes in catalysis research. Pharmaceutical studies employ it to modify peptide structures or as a tracer in reaction pathway analysis. The compound also has niche roles in materials science, such as modifying polymer surfaces or creating conductive metal-organic frameworks (MOFs). In astrophysics, its isomerization behavior provides insights into interstellar chemical processes. Industrial use is minimal due to toxicity concerns, though some agrochemical intermediates incorporate derivatives.
Safety and Storage
Methyl isocyanide is classified as highly flammable (Category 1) and toxic (Category 3) under GHS. Exposure causes respiratory irritation, dizziness, and potential liver/kidney damage. Work must occur in fume hoods with explosion-proof equipment, using chemical-resistant gloves (e.g., nitrile) and full-face respirators with organic vapor cartridges. Storage requires inert atmospheres (argon preferred) in sealed glass or stainless-steel containers at sub-zero temperatures (-20°C). Copper or aluminum stabilizers may be added to inhibit polymerization. Spills should be neutralized with alkaline hypochlorite solutions, never water. Transport follows UN 1993/PG I regulations for flammable liquids.
B2B Procurement Guide
Purchasers should prioritize suppliers specializing in high-purity organics, requesting batch-specific COAs with NMR/GC-MS purity data (>98%). Typical packaging includes 1-5g ampules or cylinders for gaseous delivery. Due to regulatory scrutiny, expect to provide end-use documentation (e.g., research protocols). Lead times vary from 2-8 weeks for custom syntheses. Alternatives like tert-butyl isocyanide may be considered for less hazardous handling. Budget for hazardous material shipping costs, which often exceed the product price. Chinese suppliers include TCI China and Alfa Aesar local distributors, while Western sources like Sigma-Aldrich charge premium rates.
Related Manufacturers
- 主营：阻燃剂、拉那白、牛儿酮、对甲基苯磺酰甲基异腈、海藻糖、热敏蓝、萘磺酸、氯菊酯、硫酸锌、催化剂、杨梅酯、檀香醚、聚醚胺、吸收剂、脂檀油、苍术素、羟钴胺、转移剂、溶剂绿、麝香酮、王浆酸、芬多精、纤维素、新戊酯、王冠醚、遮甜粉
- 主营：增塑剂、草酸镍、阻燃剂、对甲基磺酰甲基异腈、栀子蓝、抗氧剂、偶联剂、异壬酸、1-二十烯、间氟溴苄、异胞嘧啶、磷酸三钾、油墨油剂、洗涤助剂、苯磺酸钠、单体香料、环磺酮酸、分散染料、无机颜料、苹果酸镁、表面处理剂、丙二醇甲醚、化妆品原料、丁酸甘油酯、硅烷处理剂、表面活性剂
- 主营：肌氨酸钠、硫化锰、V50偶氮二异丁脒盐酸盐、二新癸酸二甲基锡、腰果酚缩水甘油醚、乙硫氮、三硫代碳酸钠、PX-4MP、芥酸PKO、四氧化三锰
- 主营：二甲基亚砜、乙二醇、丙二醇、DMAC
- 主营：有机原料、中间体、香精香料、催化剂、有机硅、表面活性剂
- 主营：离子液体、咪唑、催化剂、5-二甲基吡唑、阻燃剂、正丁醇锆、四氟硼酸锂、香兰基丁醚、氟化物、全氟辛基三甲氧基硅烷、丙酮肟、双酚E型氰酸酯、叔丁基乙烯基醚、钯碳催化剂、钛硅分子筛、硫酸烟酰苯胺、丙酮缩氨基硫脲
- 主营：对甲苯磺酰甲基异腈、高铁酸钾
- 主营：叔碳酸、十八醛、溶菌酶、2-甲基丁醛、海藻糖、癸二醇、氨基丙基、氢路噻嗪、邻苯二甲、乙基碳二、羟基癸酸、正十七烷、谷胱甘肽、烷二甲醇、松果体素、vc磷酸酯镁、朱栾倍半萜、丁烷四乙酸、表面活性剂、癸烷撑二醇、缩水甘油邻、10-羟基羊蜡酸、氢氯噻嗪杂质、盐酸邻菲罗啉、壳聚糖季铵盐
- 主营：甲酸镍、水苏糖、阻燃剂、柠檬醛、西瓜酮、氢醌酯、卡必醇、消泡剂、磷酸铁、肉桂醇、肉桂醛、碳酸镉、磷酸铝、银墨水、椰油胺、封装胶、化合物、桦木油、稀释剂、羟乙基、乙硫氮、润肤剂、球虫酯、矮壮素、异龙脑
- 主营：花生酸、碳酸钠、单氟磷酸钠、对甲苯磺酰甲基异腈、丁基羟基茴香醚、鱼大豆酵母原料
- 主营：全氟三丁胺、二苄叉山梨醇、六氟丙烯二聚体、对甲基苯磺酰甲基异腈、六氟环氧丙烷二聚体、异丙醇铝、纳米勃姆石、二异戊基硫醚、隐色结晶紫、邻菲罗啉
- 主营：对甲基苯磺酰甲基异腈、全氟三丁胺、木质素、吉氏色素
- 主营：对甲苯磺酰甲基异腈、麦芽糖酸、苯氧基环磷腈、甲巯基四氮唑
- 主营：甘氨酸、水苏糖、阻燃剂、对甲基苯磺酰甲基异腈、硫酸锌、硫酸锆、硫酸锂、硫酸锶、硫酸锰、铝酸锌、1680-21-3、牛磺酸、褪黑素、磷酸铁、丙酸铵、苏云金、碳酸镁、麝香酮、肉桂醛、磷酸铝、王浆酸、椰油胺、赖氨酸、增塑剂、浸膏粉、乙氧基
- 主营：化学品、香精香料、试剂、对甲基苯磺酰甲基异腈、中间体、有机硅、橡胶树脂、催化剂、纳米材料