. "Didecyl dimethyl ammonium chloride" . . . "didecyldimethylammonium" . "Didecyldimethylammonium chloride" . "Didecyldimethylammonium chloride" . "didecyldimethylammonium chloride" . "1-Decanaminium" . "Didecyldimethylammonium chloride" . "N-decyl-N,N-dimethyl-, chloride" . . "N-Decyl-N,N-dimethyldecan-1-aminium chloride" . "DDAC" . . "Ammonium, didecyldimethyl-, chloride" . . . . "Quaternium-12" . . . "didecyl dimethyl ammonium chloride" . "Dimethyldidecylammonium chloride" .