Phosphoramides

Hexamethylphosphoramide, often abbreviated HMPA, is a phosphoramide (an amide of phosphoric acid) with the formula This colorless liquid is used as a solvent in organic synthesis.

Metepa is a chemosterilant, with the capability to restrict ovarian development. Metepa can also result in carcinogenesis, in particular the formation of teratomas. It a minor ingredient in certain solid rocket propellants.