Supplier Page from Thermo Fisher Scientific for Diisobutylaluminum hydride, 1.2M solution in toluene, packaged under Nitrogen in resealable AcroSeal[t bottles
4-Bromobutyric acid, 98% from Thermo Fisher Scientific
Benzalkonium chloride, alkyl distribution C8-C16, 50 wt% aqueous solution from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific
Methyl 4-chlorobutyrate, 98+% from Thermo Fisher Scientific