Table 1.

Mass Spectrometry-Electron Spray Ionization (MS-ESI) values of TPC–peptide conjugates.

Conjugate	[M + 2H]2+		[M + 3H]3+
	Mass Theory	Experimental	Mass Theory	Experimental
TPC-Ahx-DKPPR	684.8	685	456.9	457
TPC-Peg9-DKPPR	700.8	700	467.5	467
TPC-PEG18-DKPPR *	772.9	773	515.6	516
TPC-Ahx-TKPRR	707.3	707	471.9	472
TPC-Peg9-TKPRR	723.3	723	482.6	482
TPC-Peg18-TKPRR *	795.9	795	530.9	530

* MALDI-TOF spectra are available in “Supplementary Information”.