Supplier Page from Thermo Fisher Scientific for Propargyl p-toluenesulfonate, 97%
2-Ethyl-1,3-hexanediol, 99%, mixture of isomers from Thermo Fisher Scientific
2-Mercaptobenzothiazole, 95% from Thermo Fisher Scientific
D-Sorbitol, 97% from Thermo Fisher Scientific
Sulfanilamide, 98% from Thermo Fisher Scientific