One of the mysteries of the English language finally explained.
The aldehyde, CH₂(CHO)₂, of malonic acid, which occurs naturally as a breakdown product of lipid hydroperoxides and has mutagenic and cytotoxic properties owing to its ability to cross-link various molecules.
Early 20th century; earliest use found in Journal of the Chemical Society. From malon- + di- + aldehyde.
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