Methylrhenium trioxide, also known as methyltrioxorhenium, is an organometallic compound with the formula CH3ReO3. It is a volatile, colourless solid that has been used as a catalyst in some laboratory experiments. In this compound, Re has a tetrahedral coordination geometry with one methyl and three oxo ligands. The oxidation state of rhenium is +7.

CAS：70197-13-6
中文别名：甲基三氧铼;甲基三氧化铼(MTO);甲基三氧化铼;
英文别名：carbanide,trioxorhenium;
分子式：CH3O3Re
分子量：249.24
精确质量：249.964
Psa：51.21
Logp：0.2274

MDL号：MFCD00192332

外观与性状：白色至蓝色-灰色晶体
沸点：65ºC (0.001 torr)
熔点：111-113ºC

安全说明：S24/25
危险类别码：R41
海关编码：2914190090
危险品运输编码：UN1479
危险类别：5.1
包装等级：II

用途
甲基三氧化铼(VII)和过氧化氢一起用于催化氧化反应。比如，氧化烯烃和一定量的催化剂甲基三氧化铼(VII)室温下反应温和，得到相对应的环氧化物，产率很