Supplier Page from Thermo Fisher Scientific for Zinc naphthenate, µ=67% in mineral spirits (10% Zn)
5-Hydroxyindole-3-acetic acid, 99% from Thermo Fisher Scientific
D-Sorbitol, 97% from Thermo Fisher Scientific
Hexanoic acid, 99% from Thermo Fisher Scientific
L(+)-Glutamic acid monosodium salt monohydrate, 99% from Thermo Fisher Scientific