SILICONE QUATERNIUM-1

Poly(oxydimethylsilanediyl), .alpha.-methyl(3-hydroxypropyl)trimethylsilyloxysilyl-.omega.-trimethylsilyloxy-, ethoxylated, ester with N-(carboxymethyl)-3-(coco-acylamino)-N,N-dimethylpropanaminium chloride (8 mol EO average molar ratio)