Fig. 4From: Structural elucidation of condensed tannin from the bark waste of Acacia crassicarpa plantation wood in IndonesiaMass spectra of 2,4,6-trimethoxy benzoic acid methyl ester and 3,4,5-trimethoxy benzoic acid methyl ester obtained by methylated Py-GC/MS of 2,4,6-trimethoxy benzoic acid and gallic acidBack to article page