Fig. 2.

Proton NMR spectrum (4 to 8 ppm) for 800CW-tilmanocept in ${\mathrm{D}}_2\mathrm{O}$. ${\mathrm{H}}_a$ represents eight protons on IRDye 800CW; ${\mathrm{H}}_b$ represents protons on ${\alpha }_1$ carbon of the dextran backbone. This spectrum was acquired from a conjugate with an average of 3.8 IRDye 800CW molecules per tilmanocept.