Supplier Page from Thermo Fisher Scientific for Ethylenediaminetetraacetic acid disodium salt, 0.200N (0.1M) Standardized solution
3-Iodo-L-tyrosine, 97% from Thermo Fisher Scientific
Acetylenedicarboxylic acid, 98% from Thermo Fisher Scientific
Farnesol, 96%, mixture of isomers from Thermo Fisher Scientific
Melatonine, 99% from Thermo Fisher Scientific