基本信息
cas:867-44-7
中文名称:S-甲基异硫脲半硫酸盐
中文别名:2-甲基-2-疏基硫酸脲;2-甲基异硫脲硫酸盐;JS-甲基异硫脲硫酸盐;S-甲基异硫脲;甲基异硫脲硫酸盐;2-甲基-2-硫代假脲半硫酸盐;2-甲基-2-硫代异尿素硫酸盐;S-甲基-ITU;
英文名称:2-Methyl-2-thiopseudourea sulfate
英文别名:S-Methyl-isothiouronium Hemisulfate;S-METHYLTHIOPSEUDOUREA SULPHATE;S-methylisothiourea hydrogensulfate;S-Methyl-ITU;S-MethyliSothourea Sulfate;2-Methyl-2-thiopseudourea hemisulfate;methyl imidothiocarbamate sulfate;2-Methyl-2-thiopseud;S-methyl isothiourea sultate;S-METHYLISOTHIOHARNSTOFF HEMISULFAT;2-METHYL-2-THIOPSEUDO UREA 14C SULFATE;S-methylisothiourea sulfuric acid salt 1:1;S-METHYL-ISO-THIOUREA;S-methyl Isothiourea (hemisulfate);S-EIT hemihydrate;S-METHYLISOTHIOURONIUM SULFATE;2-methyl-2-thiopseudouronium sulfate;S-METHYLISOTHIOURONIUM SULPHATE;5-METHYLISOTHIOUREA HEMISULFATE;(S)-METHYLISOTHIOUREA SULFATE;METHYLTHIOURONIUMSULPHATE;S-Methyl isothiourea sulfate;S-METHYLTHIOUREA;S-Methylisothiourea hemisulfate salt;2-Methyl-2-thiopseudoureasulfate;S-METHYL-2-ISOTHIOUREA HEMISULPHATE;S-METHYL-ISO-THIOUREA SULFATE;S-METHYLISOTHIOURONIUM SULPHATE/S-METHYLISOTHIOUREA SULPHATE/2-METHYL-2-THIOPSEUDOUREA SULPHATE;S-methylisothiouronium hydrogensulfate;methyl carbamimidothioate;S-METHYLISOTHIOUREASULFATE;2-METHYL-2-THIOPSEUDOUREA SULFATE (S-METHYLISOTHIOUREA SULFATE);S-METHYLTHIOURONIUM SULFATE FOR SYNTHESIS;S-Methylisothiourea hemisulfate;S-METHYLISOTHIOUREA HEMISULFATE SALT _X000D_;methyl imidothiocarbamate;S-Methylisothiourea sulfate;IMINO(METHYLSULFANYL)METHYLAMINE;S-Methyl-ITU . sulfate;S-METHYLTHIOURONIUMSULFATE(2:1);METHYLTHIURONIUMSULPHATE;S-methyl-2-thiopseudourea hydrogen sulfate;Carbamimidothioic acid, methyl ester, sulfate (2:1);S-METHYLTHIOURONIUM SULFATE;
分子式:C2H8N2O4S2
分子量:188.22600
精确质量:187.99300
PSA:158.15000
LOGP:1.47090
物化性质
外观与性状:白色结晶粉末
密度:1.28
沸点:138.8ºC at 760 mmHg
熔点:240-241 °C (dec.)(lit.)
闪点:37.7ºC
水溶解性:260 g/L (20 ºC)
稳定性:Stable. Incompatible with strong oxidizing agents.
储存条件:Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
安全信息
RTECS号:UM9200000
安全说明:S22-S24/25
WGK Germany:3
危险类别码:R22
海关编码:2930909090
危险品标志:Xn
生产方法及用途
生产方法
其制备方法是将硫脲加入反应器中加入少许水,在搅拌情况下使硫脲部分溶解,冷水浴冷却下搅拌10min,再加入重蒸的硫酸二甲酯,迅速安装上两根球形冷凝管,以防暴沸,撤去冷水浴,反应自发进行放热,5min后突然暴沸,此时固体已大部分溶解,待回流减弱并平衡后,加热再回流1h,静置过夜,反应物固化,加入95%乙醇搅拌片刻,冰水冷却0.5h,过滤,用25%乙醇洗涤得成品。

用途

医药中间体。
毒性
加载中...