1,3-Dichloro-2,2-bis(chloromethyl)propane 3228-99-7 AI3-15515 CCRIS 4944 EINECS 221-763-8 Methane, tetrakis(chloromethyl)- NSC 405471 NSC 408644 Pentaerythritol tetrachloride Pentaerythrityl tetrachloride Propane, 1,3-dichloro-2,2-bis(chloromethyl)- Tetrachloride Tetrakis(chloromethyl)methane