(E)-2-Butenoic acid 1-(hydroxymethyl)-2,3-dihydroxypropyl ester
(E)-2-Butenoic acid 1-(hydroxymethyl)-2,3-dihydroxypropyl ester ??
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(E)-2-Butenoic acid 1-(hydroxymethyl)-2,3-dihydroxypropyl ester ?? ??
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