1521-04-6 2,5-Bis(pentamethyleneimino)-1,4-benzoquinone 2,5-Bis(pentamethylenimino)-1,4-benzoquinone 2,5-Cyclohexadiene-1,4-dione, 2,5-di-1-piperidinyl- 2,5-Dipiperidino-p-benzoquinone NSC32204 p-Benzoquinone, 2,5-dipiperidino-