Supplier Page from Thermo Fisher Scientific for 3-Methyl-2-benzothiazolinone hydrazone hydrochloride monohydrate, 98%
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific