2-Piperidinoethyl o-(ethoxymethyl)carbanilate oxalate (1:1) 80171-70-6 AMK 224 CARBANILIC ACID, o-(ETHOXYMETHYL)-, 2-PIPERIDINOETHYL ESTER, OXALATE (1:1) o-(Ethoxymethyl)carbanilic acid 2-piperidinoethyl ester oxalate (1:1)