Supplier Page from Thermo Fisher Scientific for µy-Valerolactone, 98%
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethanethiol, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific