Supplier Page from Thermo Fisher Scientific for Zinc slug, 6.35mm (0.25in) dia x 6.35mm (0.25in) length, Puratronic:r, 99.993% (metals basis)
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific