Supplier Page from Thermo Fisher Scientific for 3-Sulfo-N-succinimidyl 4-(maleimidomethyl)cyclohexane-1-carboxylate sodium salt, 97+%
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific