... crystals powder Content: 98.0% Min CAS Number: 79-74-3 2,5-bis(1,1-dimethylpropyl)-1,4-Benzenediol Chemical name: 2,5-Di ... -dimethylpropyl)hydroquinone;2,5-Di(tert-amyl)-1,4-benzohydroquinone; 2,5-Di(tert-amyl)hydroquinone;2,5-Di-t-amylhydroquinone;2,5-Di-tert-amylhydroquinone; 2,5-Di-tert ...