cis-butenedioic acid
cis-butenedioic acid
(sĭs-byo͞o'tēndī`ōĭk), IUPAC name for maleic acid; see fumaric acidfumaric acidor trans-butenedioic acid,
HO2CCH=CHCO2H, unsaturated dicarboxylic acid that melts at 287°C;. Maleic acid, or cis-butenedioic acid, is a geometric isomer of fumaric acid; it melts at about 140°C;.
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