coumalic acid
noun
cou·mal·ic acid
(ˈ)kü¦malik-,
-mā-
variants or less commonly cumalic acid
(ˈ)kyü-
: a white crystalline acid C6H4O4 formed by heating malic acid with sulfuric acid or zinc chloride; 5-coumalin-carboxylic acid
Word History
Etymology
International Scientific Vocabulary coumalic, blend of coumarin and malic