Supplier Page from Thermo Fisher Scientific for (Methoxycarbonylsulfamoyl)triethylammonium hydroxide, 97%, inner salt
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
Dulcitol, 99+% from Thermo Fisher Scientific
Propionaldehyde, 99+% from Thermo Fisher Scientific
Suberic acid, 99% from Thermo Fisher Scientific