Supplier Page from Thermo Fisher Scientific for 3-Methyl-2-benzothiazolinone hydrazone hydrochloride monohydrate, 98%
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Dulcitol, 99+% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific