Supplier Page from Thermo Fisher Scientific for Methyl Red, 0.1% w/v solution in ethanol
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
3-Fluorobenzaldehyde, 98+% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific