Supplier Page from Thermo Fisher Scientific for ColorpHast:r pH Strips, Narrow, one square with single indicator on each strip, 6.5-10 pH range
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific