Supplier Page from Thermo Fisher Scientific for 4-(4-Anilinophenylazo)benzenesulfonic acid sodium salt, indicator grade
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
3-Fluorobenzyl bromide, 95% from Thermo Fisher Scientific
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific