(+-)-3-(4-Aminophenyl)-3-cyclohexyl-2,6-piperidinedione 137548-41-5 2,6-Piperidinedione, 3-(4-aminophenyl)-3-cyclohexyl-, (+-)- 3-(4-Aminophenyl)-3-cyclohexylpiperidine-2,6-dione Nphchexpipone