Supplier Page from Thermo Fisher Scientific for Silicon lump, 10cm (3.9in) & down, 98.4% (metals basis)
Emodin, 95%, tech from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethylene glycol dimethyl ether, 99+%, extra pure, stabilized with BHT from Thermo Fisher Scientific