Table 2.

Labeling, stability and octanol-PBS distribution coefficients of NOTA-PEG_n-RM26, (n = 2, 3, 4 and 6).

	PEG2	PEG3	PEG4	PEG6
Labeling yield for 68Ga, %	99.4 ± 0.3	98 ± 1	99.2 ± 0.1	99.3 ± 0.1
Stability under EDTA challenge, %	99.3 ± 0.1	98.1 ± 0.2	98.5 ± 0.1	99.1 ± 0.2
Labeling yield for 111In, %	96 ± 2	97 ± 2	97 ± 2	97 ± 2
Stability under EDTA challenge, %	95.5 ± 0.3	92.5 ± 0.7	94.3 ± 0.6	94.6 ± 0.7
LogD of 68Ga-NOTA-PEGn-RM26	−2.27 ± 0.07	−2.47 ± 0.06	−2.49 ± 0.10	−2.50 ± 0.09