55066-53-0 7529-32-0 9-Octadecenoic acid, 12-hydroxy-, ethyl ester, (9Z,12R)- 9-Octadecenoic acid, 12-hydroxy-, ethyl ester, (theta-(Z))- EINECS 259-462-9 Ethyl (R)-12-hydroxyoleate Ethyl ricinoleate