Supplier Page from Thermo Fisher Scientific for 1,3,6-Naphthalenetrisulfonic acid, sodium salt hydrate, mixture of isomers
4-Ethylphenol, 97% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl vinyl ether, 99%, stabilized from Thermo Fisher Scientific