Supplier Page from Thermo Fisher Scientific for Methyl Red, 0.1% w/v solution in ethanol
2-Mesitylenesulfonyl chloride, 99% from Thermo Fisher Scientific
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
cis-3-Hexen-1-ol, 98% from Thermo Fisher Scientific
Riboflavin, 98% from Thermo Fisher Scientific