CBQCA (3-(4-carboxybenzoyl)quinoline-2-carboxaldehyde) reacts specifically with primary amines to form conjugates that can be analyzed by electrophoretic or chromatographic methods. CBQCA also reacts with hydrophilic peptides and amino sugars. The amine derivatized product (7-aza-1-cyano-5,6-benzisoindole) is highly fluorescent that is optimally excited at 450 nm and have emission maximum at 560 nm.
- λEx/λ Em(MeOH) = 465/560 nm (for reaction product with amines)
- Light yellow solid soluble in DMF or DMSO
- Store at -20°C and protect from light
- MW: 305