histidinal

his·ti·din·al

(his'ti-din'ăl),
The aldehyde analogue of histidine (-CHO replacing -COOH).
References in periodicals archive ?
The possible exceptions, histidinal and histinidol, may have resulted from components of a vestigial cofactor pathway.
Referring to Figure 1, all compounds are derivatives of carboxylic or phosphoric acid or both, with the exception of histidinol and histidinal.