2(3H)-Furanone,5-(3,4-dihydroxybenzyl)dihydro- (8CI); Valeric acid,5-(3,4-dihydroxyphenyl)-4-hydroxy-, g-lactone (6CI); (?à)-d-(3,4-Dihydroxyphenyl)-g-valerolactone; d-(3,4-Dihydroxyphenyl)-g-valerolactone
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