Cas号68-12-2Beilstein605365分子式C3H7NO；HCON(CH3)2分子量73.09别名***,甲酰二***,N-甲酰二***,二甲替甲酰胺,N.N-***外观Appearance清澈、无悬浮物纯度Purity≥99.9%(GC)色度Colorscale（铂-钴色号）Hazen≤10馏程(1.013×105pa馏出1-95%体积)℃≤2.0水份water≤500ppm铁(Fe)≤0.05ppm酸度Acidity（以甲酸计）≤10.0ppm碱度（以二***计）≤5.0ppm***≤20.0ppm电导率（25℃）μs/cm≤2.0PH值（25℃，20%水溶液）6.5-8.0折光率Refractiveindex1.4275~1.4290)