Supplier Page from Thermo Fisher Scientific for Arsenic polycrystalline lump, 2-8mm (0.08-0.3in), Puratronic:r, 99.99999+% (metals basis)
2-Ethylaniline, 98% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98% from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific