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Chemical structure of sodium 5,6-benzylidene-l-ascorbate (SBA) and its hydrolyzed products (benzaldehyde (BA), sodium ascorbate (SA)) (A) and eugenol (B). SBA has two diastereomers (S and R configurations at stereogenic center indicated by asterisk in A) present at 31% and 69% (determined by chromato-integrator), respectively [6,7].
