Supplier Page from Thermo Fisher Scientific for ColorpHast:r pH Strips, Narrow, one square with single indicator on each strip, 0-2.5 pH range
2(2-Ethoxyethoxy)ethanol, 98+% from Thermo Fisher Scientific
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific