Supplier Page from Thermo Fisher Scientific for Tin ingot/button, µ=36mm (1.4in) dia x 8mm (0.3in) thick, 99.9% (metals basis)
3-Fluorobenzyl bromide, 95% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific