Supplier Page from Thermo Fisher Scientific for Hexa-n-butylditin, 97%
D-Sorbitol, 97% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific
L(+)-Histidine methyl ester dihydrochloride, 97% from Thermo Fisher Scientific
Methyl 4-chlorobutyrate, 98+% from Thermo Fisher Scientific