(-)-1,8-Diethyl-1,3,4,9-tetrahydropyrano(3,4-b)indole-1-acetic acid (-)-Etodolic acid 87226-41-3 BRN 5761989 Pyrano(3,4-b)indole-1-acetic acid, 1,3,4,9-tetrahydro-1,8-diethyl-, (R)- RAK-593