Supplier Page from Thermo Fisher Scientific for Xanthine monosodium salt monohydrate, 96+% (dry basis), Thermo Scientific
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
3-Fluorobenzyl bromide, 95% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific