Supplier Page from Thermo Fisher Scientific for n-Butyllithium, 1.6M in hexanes, packaged under Nitrogen in resealable AcroSeal[t bottles
Acetylenedicarboxylic acid, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Shikimic acid, 98% from Thermo Fisher Scientific
Trimethyloxonium tetrafluoroborate, 95% from Thermo Fisher Scientific