Fluorophore compounds and methods for their use are disclosed. The fluorophores contain a 2-dicyanomethylen-3-cyano-2,5-dihydrofuran (DCDHF) moiety and one or more donor groups conjugated to the 2-dicyanomethylen-3-cyano-2,5-dihydrofuran group. The donor groups can contain atoms with free electron pairs such as oxygen, sulfur, nitrogen, or phosphorous. The fluorophore compounds can be used to label and detect biological molecules and biological structures either in vivo or in vitro.
本发明揭示了荧光化合物及其使用方法。所述荧光物质含有2-二
氰基甲烯基-3-
氰基-
2,5-二氢呋喃(
DCDHF)基团和一个或多个供体基团与2-二
氰基甲烯基-3-
氰基-
2,5-二氢呋喃基团共轭。供体基团可以包含具有自由电子对的原子,例如氧、
硫、氮或
磷。所述荧光化合物可用于标记和检测
生物分子和
生物结构,无论是在体内还是体外。