Supplier Page from Thermo Fisher Scientific for L(-)-Tryptophan, 99%
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Ethylmercurithiosalicylic acid, sodium salt, 97.0-101.0% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific