: P 1960 (OTTO) Polyacrylamide Cas 9003-05-8 - used as a water soluble homopolymer which is biocompatible. P 1960 (OTTO) Polyacrylamide Cas 9003-05-8 - used in such applications as polyacrylamide gel electrophoresis, and can also be called ghost crystals when cross-linked, and in manufacturing soft contact lenses. In the straight-chain form, it is also used as a thickener and suspending agent.