Supplier Page from Thermo Fisher Scientific for Buffer solution, pH 2.00 (µ+0.01 @ 25µoC), No Color, Specpure:r, NIST Traceable
2-Ethyl-1-hexanol, 99% from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific
Ethyl 3-pyridylacetate, 99% from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific