Supplier Page from Thermo Fisher Scientific for Triphenylphosphine-3,3',3''-trisulfonic acid trisodium salt hydrate, tech. 85%
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Fluoranthene, 98% from Thermo Fisher Scientific