Table 3.

Cell viability at 6 days postlabeling.

Labeling condition	% viability
Unlabeled control	82.1 ± 14.4
0.5% DMSO	82.0 ± 11.8
10 μM, 24 h	90.5 ± 11.9
40 μM, 30 min	89.9 ± 13.3

Viability was determined by trypan blue assay. Shown are mean values and standard deviations.