DL-5-Hydroxylysine is a racemic mixture of D- and L- enantiomers of 5-hydroxylysine which may be used as potential target markers for radical-induced protein oxidation.

1H-Pyrazole is a versatile building block with a vast applications in organic synthesis. The derivatives of Pyrazole are used in medicine for their analgesic anti-inflammatory antipyretic antiarrhythmic tranquilizing muscle relaxing psychoanaleptic anticonvulsant monoamineoxidase inhibiting antidiabetic and antibacterial activities.

Phenylglyoxylic acid is a metabolite of ethylbenzene and styrene.