abstract |
This invention relates to the quaternary ammonium salt, α-4-[1-tris (2-hydroxyethyl) ammonium chloride-2-butenyl] poly [1-dimethyl ammonium chloride-2-butenyl]-w-tris (2-hydroxyethyl) ammonium chloride, providing aqueous disinfecting solutions for contact lenses as well as a preservative for ocular solutions including contact lens treating solutions. |