Patent ID: 7423143

Claim:
A nucleic acid labeling compound of the following structure: wherein A is H, monophosphate, diphosphate, triphosphate, phosphoramidite ((R 2 N)(R′O)P) wherein R is linear, branched or cyclic alkyl and R′ is a protecting group, or H-phosphonate (HP(O)O—HNR 3 ), wherein R is linear, branched or cyclic alkyl; X is O, S, NR 1 or CHR 2 , wherein R 1 and R 2 are, independently, H, alkyl or aryl; Y is H, N 3 , F, OR 9 , SR 9 or NHR 9 , wherein R 9 is H, alkyl or aryl; Z is H, N 3 , F or OR 10 , wherein R 10 is H, alkyl or aryl; L is an amido alkyl group; Q is a detectable moiety; and, M is a connecting group, and wherein n is an integer ranging from 0 to about 3.