Gallic Acid - Spectral Data

Spectral Data

UV-Vis
Lambda-max: 220, 271 nm (ethanol)
Extinction coefficient (log ε)
IR
Major absorption bands ν : 3491, 3377, 1703, 1617, 1539, 1453, 1254 cm−1 (KBr)
NMR
Proton NMR


(acetone-d6):
d : doublet, dd : doublet of doublets,
m : multiplet, s : singlet

 δ :

7.15 (2H, s, H-3 and H-7)
Carbon-13 NMR


(acetone-d6):

 δ :

167.39 (C-1),
144.94 (C-4 and C-6),
137.77 (C-5),
120.81 (C-2),
109.14 (C-3 and C-7)
Other NMR data
MS
Masses of
main fragments		 ESI-MS - m/z : 169.0137

Reference

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