Supplier Page from Thermo Fisher Scientific for 1,2-Propanediol, ACS, 99.5% min
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl chloroacetate, 99% from Thermo Fisher Scientific
Glutaric dialdehyde, 25 wt.% solution in water from Thermo Fisher Scientific
Glyoxylic acid monohydrate, 98%, pure from Thermo Fisher Scientific