Supplier Page from Thermo Fisher Scientific for Thionyl chloride, 1M soln. in dichloromethane
2-Mercapto-1-methylimidazole, 98% from Thermo Fisher Scientific
Imidazole, 99% from Thermo Fisher Scientific
L-Serine, 99% from Thermo Fisher Scientific
Methyl 5-bromovalerate, 97% from Thermo Fisher Scientific