2,4-DIHYDROXYBENZALDEHYDE 2,4-Dihydroxybenzenecarbonal 4-08-00-01753 (Beilstein Handbook Reference) 4-Formylresorcinol 4-Hydroxysalicyladehyde 4-Hydroxysalicylaldehyde 95-01-2 AI3-24367 BRN 0878548 Benzaldehyde, 2,4-dihydroxy- EINECS 202-383-1 NSC 8690 Salicylaldehyde, 4-hydroxy- beta-Resorcaldehyde beta-Resorcinaldehyde beta-Resorcylaldehyde beta-Resorcylic aldehyde beta-Rosorcaldehyde