Supplier Page from Thermo Fisher Scientific for Methyl 4-(triphenylphosphonio)crotonate bromide, 98%
2-Ethyl-1,3-hexanediol, 99%, mixture of isomers from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific