Wikipedia:  

2,5-dihydroxybenzoic acid

2,5-Dihydroxybenzoate; 5-hydroxysalicylic acid; BENZOIC ACID,2,5-DIHYDROXY; 2,5-dihydroxybenzoic acid; 2,5-dihydroxybenzoate; DHB; Hydroquinonecarboxylic acid; Gentisate; Benzoic acid, 2,5-dihydroxy-; benzoic acid, 2,5-dihydroxy-; 2,5-Dihydroxybenzoic acid
Molecular Formula
C7 H6 O4
Natural Isotopic Abundance Mass
154.12014
Mono-Isotopic Molecular Masses
C12N14:   154.026608681
C13N14:   161.0500925456
C12N15:   154.026608681
C13N15:   161.0500925456
2,5-dihydroxybenzoic acid image
2,5-dihydroxybenzoic acid
InCHi String:
InChI=1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11)

canonical and isomeric SMILES:
C1=CC(=C(C=C1O)C(=O)O)O


PUBCHEM iupac NAME: PUBCHEM iupac TRADITIONAL NAME: PUBCHEM iupac OPENEYE NAME: PUBCHEM iupac CAS NAME: PUBCHEM iupac SYSTEMATIC NAME
2,5-dihydroxybenzoic acid



PubChem Substance (SID):   85165126   10523981   24848948
PubChem Compound (CID):   3469
KEGG: Compound ID   C00628
CAS Registry IDs:   4955-90-2   490-79-9
PDB Chemical Component   GTQ
Miscellaneous Databases and IDs:   ChEBI CHEBI:17189   CambridgeSoft Corporation 3851   NMRShiftDB 10009263   NIST Chemistry WebBook 1243319532   Sigma-Aldrich 149357_ALDRICH

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.