In vivo kinetics of ¹⁴C-Neu5Gc and ¹⁴C-Neu5Ac in the whole body after tail vein injection.

Radioactivity in each organ at 1, 3 and 24 hr after tail vein injection of ¹⁴C-Neu5Gc (A: n = 5) or ¹⁴C-Neu5Ac (B: n = 5–6) is shown as a relative value to the radioactivities of injected-¹⁴C-Neu5Gc or ¹⁴C-Neu5Ac.