产品描述:
NBD-X, SE is an excellent amino-reactive building block that can be used to prepare peptide conjugates and other bioconjugates/biopolymers. It has much higher conjugation efficiency than NBD-Cl and NBD-F. This amine-reactive NBD derivative, containing a convenient succinimidyl ester, can be used to develop environmentally sensitive bioconjugates. NBD is a functional analog of the dinitrophenyl hapten, and its fluorescence is quenched upon binding to anti-dinitrophenyl (anti-DNP) antibodies. The X-spacer separates the fluorescent dye from the protein allowing greater sensitivity and reduced perturbation effects on protein labeling. Spectral properties: lamdaEx=460; lambdaEm=540.