Supplier Page from Thermo Fisher Scientific for µa-Naphtholphthalein
2-Mercaptobenzothiazole, 95% from Thermo Fisher Scientific
cis-3-Hexen-1-ol, 98% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
L(-)-Menthol, 99.5% from Thermo Fisher Scientific