Supplier Page from Thermo Fisher Scientific for n-Heptane, Spectrophotometric Grade, 99+% n-Heptane 96% min
2-Ethoxybenzamide, 97% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific