Chemistry is traditionally divided into organic and inorganic chemistry. Safety of H-D-Trp-OH. The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 153-94-6
The first activation study of the human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms associated to tumors, hCA IX and XII, with a small library of natural and non-natural amino acids as well as aromatic/heterocyclic amines is reported. hCA IX was activated efficiently by dopamine, adrenaline and heterocyclic amines possessing aminoethyl-/aminomethyl-moieties (KAs of 9 nM-1.07 muM), whereas the best hCA XII activators were serotonin, l-adrenaline, 4-(2-aminoethyl)-morpholine and d-Phe (KA of 0.24-0.41 muM). Precise steric and electronic requirements are needed to be present in the molecules of effective hCA IX/hCA XII activators, in order to assure an adequate fit within the enzyme active site cavity for the formation of the enzyme-activator complex, and for an efficient proton transfer process within this complex, leading to the release of a proton and formation of the catalytically active, zinc-hydroxide species of the enzyme. Selective activation of these CA isoforms might be useful to develop pharmacologic tools or to understand whether some of these biogenic amines/amino acids may influence the progression of tumors overexpressing CA IX and/or CA XII.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Safety of H-D-Trp-OH, you can also check out more blogs about153-94-6
Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI