Supplier Page from Thermo Fisher Scientific for Poly(styrene sulfonic acid) sodium salt, M.W. 500,000
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
3-Fluorobenzyl bromide, 95% from Thermo Fisher Scientific
4-Ethylaniline, 99+% from Thermo Fisher Scientific
Ethyl 3-pyridylacetate, 99% from Thermo Fisher Scientific