Supplier Page from Thermo Fisher Scientific for 2,3-Pyridinedicarboxylic acid, 99%
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific