13980-89-7 5516-88-1 5539-08-2 6-METHYL-ERGOL-8,9-ENE-8-CARBOXYLIC ACID 6-Methyl-delta 8,9-ergoline-8-carboxylic acid Ergoline-8-carboxylic acid, 8,9-didehydro-6-methyl- Paspalic acid