4-Phenyl-4-piperidylmethylcarbamic acid, ethyl ester 83783-74-8 CARBAMIC ACID, (4-PHENYL-4-PIPERIDYL)METHYL-, ETHYL ESTER EINECS 280-809-5 Ethyl ((4-phenyl-4-piperidyl)methyl)carbamate NSC 89574