眼睛干涩,该怎么选择眼药水? 27/02更新A.首先感谢@梁边妖 大牛的点赞,我估计这个答案赞同的人有一半是你的粉丝吧。B.托吡卡胺滴眼液…
三氯叔丁醇的简介 中文名称:三氯丁原醇,三氯叔丁醇中文别名:氯丁醇;三氯丁原醇;克劳喘通英文名称:Chlorobutanol英文别名:Chlorobutanol,1,1,1-Trichloro-2-methyl-2-propanol,β,β,β-Trichloro-tert-butylalcohol,tert-Trichlorobutylalcohol,Acetonechloroform,Chloretone,ChlorbutolCAS:57-15-8 215-305-6分子式:C4H9ClO InChI:InChI=1/C4H7Cl3O/c1-3(2,8)4(5,6)7/h8H,1-2H3 分子结构:密度:1.404g/cm3 沸点:167°C at 760 mmHg 闪点:61.8°C 蒸汽压:0.574mmHg at 25°C 风险术语:R22:Harmful if swallowed.;R36/37/38:Irritating to eyes,respiratory system and skin.;安全术语:S26:In case of contact with eyes,rinse immediately with plenty of water and seek medical advice.;S36/37/39:Wear suitable protective clothing,gloves and eye/face protection.;
非那雄胺是怎样生产的? 2)提取,合并有机相,依次用适量2mol/L盐酸溶液、饱和NaHCO3溶液和饱和NaCl溶液洗,无水Na2SO4干燥,过滤,滤液减压浓缩至干,剩余物用乙酸乙酯重结晶,得类白色晶体N-叔丁基-3-。