1-(Piperidinomethyl)ethyl 4-butoxy-2-methylcarbanilate 4-Butoxy-2-methylcarbanilic acid 1-(piperidinomethyl)ethyl ester 63986-59-4 CARBANILIC ACID, 4-BUTOXY-2-METHYL-, 1-(PIPERIDINOMETHYL)ETHYL ESTER KL 3633