((5,6,7,8-Tetrahydro-4-(2-thienylcarbonyl)-1-naphthalenyl)oxy)acetic acid (4-(2-Thenoyl)-5,6,7,8-tetrahydro-1-naphthyloxy)acetic acid 68572-31-6 Acetic acid, ((5,6,7,8-tetrahydro-4-(2-thienylcarbonyl)-1-naphthalenyl)oxy)-