Supplier Page from Thermo Fisher Scientific for Thymolphthalein
1,7-Heptanediol, 95% from Thermo Fisher Scientific
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
D-Mannitol, 98+% from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific