Methyl methanesulfonate (MMS) is an alkylating agent and a carcinogen. It is also a suspected reproductive toxicant, and may also be a skin/sense organ toxicant. It is used in cancer treatment.

CAS：66-27-3
中文别名：甲基磺酸甲酯;甲基甲烷磺酸酯;甲烷磺酸甲酯;
英文别名：Methanesulfonic acid,methyl ester;as-Dimethyl sulfite;Methyl methansulfonate;Methyl methanesulfonate;methanesulphonic acid methyl ester;Methanesulfonic acid, methyl ester;as-Dimethyl sulphite;Methylmethanesulfonate;Methyl mesylate;methyl methanesulphonate;
分子式：C2H6O3S
分子量：110.132
精确质量：110.004
Psa：51.75
Logp：0.6732

UNII：AT5C31J09G

外观与性状：无色液体
密度：1.3g/mLat 25°C(lit.)
沸点：202-203°C(lit.)
熔点：20ºC
闪点：220°F
折射率：n20/D 1.414(lit.)
水溶解性：200 g/L (20 ºC)
稳定性：Stable. Combustible. Incompatible with strong oxidizing agents, strong acids, strong bases.
储存条件：Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

RTECS号：PB2625000
安全说明：S53-S26-S45-S36/37/39
危险类别码：R22; R36/37/38; R45; R68
WGK Germany：3
危险品运输编码：UN 2810 6.1/PG 3
危险类别：6.1(b)
包装等级：III
危险品标志：T
危险标志：GHS06, GHS08
危险性描述：H301; H315; H319; H335; H350
危险性防范说明：P201; P261; P301 + P310; P305 + P351 + P338; P308 + P313
信号词：Danger

用途
化学诱变剂。