Supplier Page from Thermo Fisher Scientific for Barium chloride dihydrate, Puratronic:r, 99.997% (metals basis)
Emodin, 95%, tech from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific