A spermicidal contraceptive vaginal gel that contains nonoxynol-9 (N-9), available without prescription

Nonionic surfactant mixtures varying in the number of repeating ethoxy (oxy-1,2-ethanediyl) groups. They are used as detergents, emulsifiers, wetting agents, defoaming agents, etc. Nonoxynol-9, the compound with 9 repeating ethoxy groups, is a spermatocide, formulated primarily as a component of vaginal foams and creams.

Synonyms: Poly(oxy-1,2-ethanediyl), alpha-(4-nonylphenyl)-omega-hydroxy-, 9014-90-8, 26027-38-3, Nonoxynols, Delfen Cream, Nonoxynol-9, Emulgen 911, Nonoxynol, 4-Sulfate, Ammonium Salt, Nonoxynol, 0, Nonylphenoxypolyethoxyethanols, 31691-97-1, Emulgin 913, Advantage-S, Delfen Creams, Patentex Oval, Nonoxinol, Nonoxynol 9, Nonoxinols, Advantage S, Nonoxynol, 1(4)-Sulfate, Sodium Salt, Oval, Patentex, Nonylphenoxypolyethoxyethanol