Supplier Page from Thermo Fisher Scientific for 1,4-Bis(phenylethynyl)benzene, 97%
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific
Glutaric acid, 99% from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific