Supplier Page from Thermo Fisher Scientific for Aluminum slug, 6.35mm (0.25in) dia x 6.35mm (0.25in) length, Puratronic:r, 99.9995% (metals basis)
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
9-Fluorenone, 99+% from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific