2-(4-((5,6-diphenylpyrazin-2-yl)(isopropyl)amino)butoxy)acetic acid; 2-[4-[(5,6-Diphenyl-2-pyrazinyl)(1-methylethyl)amino]butoxy]-acetic Acid; [4-[(5,6-Diphenylpyrazinyl)(1-methylethyl)amino]butoxy]-acetic Acid; 2-[4-[(5,6-Diphenyl-2-pyrazinyl)(1-methylethyl)amino]butoxy]acetic Acid; ACT 333679; [4-[(5,6-Diphenylpyrazin-2-yl)(isopropyl)amino]butoxy]acetic Acid