Supplier Page from Thermo Fisher Scientific for Tungsten wire, gold plated, 0.1mm (0.004in) dia, W 99.95% (metals basis), Au 99.99%
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific