A fluorescent label compound having the formula
A-B¹-B²-B³-C
wherein
A represents the residue of a natural or synthetic nucleotide or nucleoside or a derivative thereof;
B¹ represents a divalent spacer radical or a single bond;
B² represents a divalent spacer radical;
B³ represents a divalent spacer radical or a single bond; and
C represents a coumarin radical having the formula
一种荧光标签化合物,其
化学式为
A-B¹-B²-B³-C
其中
A 代表天然或合成核苷酸或核苷或其衍
生物的残基;
B¹ 代表二价间隔基或单键
B² 代表二价间隔基;
B³ 代表二价间隔基或单键;以及
C 代表具有以下式子的
香豆素基