Wikipedia:  

vanillic acid

Benzoic acid, 4-hydroxy-3-methoxy-; 4-Hydroxy-3-methoxybenzoic acid; 4-Hydroxy-3-methoxybenzoate; Vanillic acid; vanillic acid; Vanillate
Molecular Formula
C8 H8 O4
Natural Isotopic Abundance Mass
168.14672
Mono-Isotopic Molecular Masses
C12N14:   168.0422587452
C13N14:   176.0690974476
C12N15:   168.0422587452
C13N15:   176.0690974476
vanillic acid image
vanillic acid
InCHi String:
InChI=1S/C8H8O4/c1-12-7-4-5(8(10)11)2-3-6(7)9/h2-4,9H,1H3,(H,10,11)

canonical and isomeric SMILES:
COC1=C(C=CC(=C1)C(=O)O)O


PUBCHEM iupac NAME: PUBCHEM iupac CAS NAME
4-hydroxy-3-methoxybenzoic acid

PUBCHEM iupac TRADITIONAL NAME: PUBCHEM iupac OPENEYE NAME: PUBCHEM iupac SYSTEMATIC NAME
4-hydroxy-3-methoxy-benzoic acid



PubChem Substance (SID):   111677744   8897   8145217
PubChem Compound (CID):   8468
KEGG: Compound ID   C06672
CAS Registry IDs:   121-34-6
PDB Chemical Component   VNL
Miscellaneous Databases and IDs:   Sigma-Aldrich H36001_ALDRICH   ChEBI CHEBI:30816   ChemSpider 13875897   NMRShiftDB 20039583   ChemDB 6691900   DTP/NCI 674322   NIST Chemistry WebBook 1814882549   MMCD cq_03127   MDL MFCD00002551

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.