Supplier Page from Thermo Fisher Scientific for Sodium metaborate tetrahydrate, 98%
2(2-Ethoxyethoxy)ethanol, 98+% from Thermo Fisher Scientific
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific