1-10-00-00192 (Beilstein Handbook Reference) 3-Bromo-4,5-dihydroxybenzoic acid 5-Bromo-3,4-dihydroxybenzoic acid 5-Bromoprotocatechuic acid 61203-46-1 BRN 2368710 EINECS 262-652-4 Protocatechuic acid, 5-bromo-