Supplier Page from Thermo Fisher Scientific for 4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate, cont. up to 30% water
1-Ethynyl-1-cyclohexanol, 99+% from Thermo Fisher Scientific
4-Ethylaniline, 99+% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific