Supplier Page from Thermo Fisher Scientific for 2,2'-Diaminodiphenyl disulfide, 97%
4-Ethylphenol, 97% from Thermo Fisher Scientific
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Furfuryl alcohol, 98% from Thermo Fisher Scientific
Gramine, 99% from Thermo Fisher Scientific