D-Ribose 5-phosphate disodium dihydrate is a key intermediate in the oxidative branch and an end product in the nonoxidative branch of the pentose phosphate pathway (PPP), playing a crucial role in the synthesis of nucleotides and nucleic acids .

2-Hydroxyphenethylamine has been found in human testicle tissue and has also been primarily detected in blood. 2-Hydroxyphenethylamine can be converted into 2-(hydroxymethyl)-4-(1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino}ethyl)phenol.

5-Phenylvaleric acid is a pentanoic acid of bacterial origin occasionally found in human biofluids.