Polymethylhydrosiloxane (PMHS) is a polymer with the general structure -(CH3(H)Si-O)-. It is used in organic chemistry as a mild and stable reducing agent easily transferring hydrides to metal centers. A variety of related materials are available under the following CAS registry numbers 9004-73-3, 16066-09-4, 63148-57-2, 178873-19-3. These include the tetramer ((MeSiHO)4), copolymers of dimethysiloxane and methylhydrosiloxane, and trimethylsilyl terminated materials.

CAS：9004-73-3
中文别名：202含氢硅油;聚(甲基氢硅氧烷);
英文别名：2-Methyl-1,2-oxasilinane;
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EINECS号：618-393-8

外观与性状：透明无色粘性液体
密度：0.995
沸点：>177ºC(lit.)
熔点：>177ºC(lit.)
闪点：121ºC
折射率：1.3969-1.3989
稳定性：Stable under normal temperatures and pressures.
储存条件：Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

安全说明：S24/25
危险类别码：R10
危险品标志：Xi