4-(Diethylamino)salicylaldehyde
4-(Diethylamino)salicylaldehyde is a substituted benzaldehyde carrying a hydroxyl group at the 2-position and a diethylamino group at the 4-position, supplied as a yellow to orange crystalline powder at 98% purity.
This arrangement of donor and acceptor groups on one benzene ring creates a push-pull chromophore, so the compound is strongly coloured, strongly fluorescent after derivatisation, and highly reactive towards condensation at the aldehyde carbon. It is a classic precursor to fluorophores, Schiff bases and metal-chelating ligands.
The powder should be stored in a closed container, protected from light, heat and moisture, since the aldehyde is prone to oxidation and to self-condensation.
• Fluorophore synthesis: a key building block for rhodamine, coumarin and salicylaldehyde-derived fluorescent dyes for labelling and sensing.
• Schiff base and chelating ligands: condenses with amines to give salicylaldimine ligands that complex copper, zinc and aluminium for catalysis and optical materials.
• Functional coatings and inks: used to prepare metal-complex dyes and light-stable colourants for plastics and printing.
• Pharmaceutical and agrochemical intermediates: provides the diethylamino-salicylaldehyde fragment found in several biologically active compounds.
Product Name: 4-(Diethylamino)salicylaldehyde
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