Supplier Page from Thermo Fisher Scientific for 2,3-Dimethoxybenzoic acid, 99%
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific