Supplier Page from Thermo Fisher Scientific for Naphthalene-1-sulfonic acid sodium salt, 99% (dry wt.), water <2%
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific
Ethyl carbazate, 97% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific