A dialdehyde is an organic compound with two aldehyde groups. An example is pentanedial (glutaraldehyde).
Nomenclature
Dialdehydes have the ending -dial or sometimes -dialdehyde. Short aliphatic dialdehydes are sometimes named after the diacid from which they can de derived. An example is butanedial, which is also called succinaldehyde (from succinic acid).
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