Patent ID: 11867698
Assignee: LIFE TECHNOLOGIES CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  C  Y | IPC C  G

Claim 4:
5. The method of claim 1, wherein X is:, wherein,
R7, R8, R9 and R10 are each independently selected from the group consisting of alkyl, substituted alkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, cycloalkyl, substituted cycloalkyl, heterocyclyl, and substituted heterocyclyl; and
R11, R12, R13 and R14 are each independently selected from the group consisting of H, alkyl, substituted alkyl, alkoxy, substituted alkoxy, acyl, acylamino, acyloxy, amino, substituted amino, aminocarbonyl, aminothiocarbonyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aminosulfonyl, aminosulfonyloxy, aminosulfonylamino, amidino, carboxyl, carboxyl ester, (carboxyl ester)amino, (carboxyl ester)oxy, cyano, halo, hydroxy, nitro, —SO3H, sulfonyl, substituted sulfonyl, sulfonyloxy, thioacyl, thiol, alkylthio, substituted alkylthio, aryl, substituted aryl, heteroaryl, substituted heteroaryl, cycloalkyl, substituted cycloalkyl, heterocyclyl, and substituted heterocyclyl; or
R11 and R14 are taken together with R7 and R8 to form a fused ring; and R12 and R13 are taken together with R9 and R10 to form a fused ring.