Trichlormethylchlorformiat, trichloromethyl chloroformate, Perstoff, Difosgen, Carbonochloridic acid, trichloromethyl ester, trichloromethyl carbonochloridate, perchloromethylformate, chloroformic acid trichloromethyl ester, Disphosgene, Diphosgen, trichloro-methanochloroformate, trichloromethyl chloroformiate