Patent ID: 7824928

Claim:
A chemiluminescent compound having the structure: wherein: X═O, S or NR', wherein R′ is H, alkyl or substituted alkyl; Y═O or S; Z=alkyl, sulfoalkyl, alkenyl, or sulfoalkenyl; Ar=aryl or heteroaryl, wherein said aryl or heteroaryl bears at least one —SO 2 L substitutent, wherein L is NHQ, wherein Q is a poly(lysine-homocysteic acid) or poly(lysine-cysteic acid) linker bearing an amine reactive group; R=sulfoalkyl or sulfoalkenyl; when Z is alkyl or alkenyl, A − is present and is a suitable counter-ion, and when Z is sulfoalkyl or sulfoalkenyl, A − is not present; and n=0-3.