Synonyms: ethyl 4-[4-(benzo[1,3]dioxol-5-ylmethyl)2,3,5,6-tetrahydropyrazine-1-carbonyl]-2,5-dimethoxy-benzoate; methanesulfonate;Ethyl 2,5-dimethoxy-4-(4-piperonylpiperazin-1-ylcarbonyl)benzoate methanesulfonate;BENZOIC ACID, 2,5-DIMETHOXY-4-(4-PIPERONYLPIPERAZIN-1-YL-CARBONYL)-, ETHYL ESTER;