Supplier Page from Thermo Fisher Scientific for (S)-(4,4',5,5',6,6'-Hexamethoxybiphenyl-2,2'-diyl)bis(bis[3,5-dimethylphenyl]phosphine), 97%
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific