Supplier Page from Thermo Fisher Scientific for Di-n-butyltin bis(2-ethylhexanoate)
DL-Glutamic acid monohydrate, 98+% from Thermo Fisher Scientific
Itaconic acid, 99+% from Thermo Fisher Scientific
L(-)-Menthol, 99.5% from Thermo Fisher Scientific
Melatonine, 99% from Thermo Fisher Scientific