1703-33-9 5-20-01-00385 (Beilstein Handbook Reference) BRN 1328127 CARBONIC ACID, ETHYL ESTER, ESTER with 1-(4-HYDROXY-3,5-DIMETHOXYBENZOYL)PYRROLI Carbonic acid, ethyl ester, ester with 1-(4-hydroxy-3,5-dimethoxybenzoyl)pyrrolidine LG 50,050