Supplier Page from Thermo Fisher Scientific for Ammonium bismuth citrate, Bi 48-52%, water ca 2%
Ethyl 4-chlorobutyrate, 97% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl cyanoformate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific