CAS: 5707-55-1 Molecular Formula: C8 H8 O3 Molecular Weight (g/mol): 152.15 Synonym: Benzeneacetaldehyde, 3,4-dihydroxy-,Acetaldehyde, (3,4-dihydroxyphenyl)- (6CI,7CI,8CI),3,4-Dihydroxybenzeneacetaldehyde,(3,4-Dihydroxyphenyl)acetaldehyde,2-(3,4-Dihydroxyphenyl)acetaldehyde,3,4-Dihydroxy-α-tolualdehyde,Dopal,Homoprotocatechualdehyde IUPAC Name: 2-(3,4-dihydroxyphenyl)acetaldehyde SMILES: Oc1ccc(CC=O)cc1O