Supplier Page from Thermo Fisher Scientific for Arsenic standard solution, for AAS, 1 µg/mL As in 2% KOH
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Ethyl carbazate, 97% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific