| abstract |
A radioactive isotope-labeled dye compound represented by the following general formula (I): n nwherein R 1 and R 2 represent a substituent, R 3 to R 6 represent a substituted or unsubstituted alkyl group; R 7 and R 8 represent a substituted or unsubstituted alkyl group; L 1 to L 3 represent a substituted or unsubstituted methine group; r represents an integer of 0 to 3; P and Q represent 123 I, 124 I, 125 I, 131 I or 18 F; M represents hydrogen atom, Na, or K; and m and n represent an integer of 0 to 2. |