2-Methylcitric acid trisodium (Methylcitric acid trisodium) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid trisodium accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid trisodium markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate.

2-Methylcitric acid (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate.

Aldosterone is the primary mineralocorticoid. Aldosterone is a steroid hormone, and it is synthesized and secreted in response to renin-angiotensin system activation (RAS) or high dietary potassium by the zona glomerulosa (ZG) of the adrenal cortex. Aldosterone activity is dependent by the binding and activation of the cytoplasmic/nuclear mineralocorticoid receptor (MR) at cellular level.

FAPy-adenine is an oxidized DNA base. Fapy-adenine shows an increased trend levels in the Alzheimer's disease brain. Oxidized nucleosides are biochemical markers for tumors, aging, and neurodegenerative diseases.

7α-Hydroxy-4-cholesten-3-one is an intermediate in synthesis of bile acids from cholesterol. 7α-Hydroxy-4-cholesten-3-one is a pregnane X receptor (PXR) agonist. 7α-Hydroxy-cholest-4-en-3-one is a biomarker for bile acid loss, irritable bowel syndrome, and other diseases associated with defective bile acid biosynthesis. 7α-Hydroxy-cholest-4-en-3-one is the physiological substrate for CYP8B1.

Allotetrahydrocortisol (5a-Tetrahydrocortisol) is a metabolite of Cortisol. Cortisol is the main glucocorticoid in human. It is produced in adrenal cortex and plays a crucial role in many physiological processes.

Tetrahydrocortisone is a stress-induced hormone. Tetrahydrocortisone is also a urinary metabolite of Cortisone derived from the reduction of Cortisone by 5-reductase.

Cysteinylglycine TFA is an endogenous metabolite and used in disease diagnosis.

Mevalonic acid lithium salt, a precursor in the mevalonate pathway, is essential for cell growth and proliferation.

L-hydroxylysine dihydrochloride ((2S,5R)-5-Hydroxylysine dihydrochloride), an amino acid, is exclusive to collagen protein, which is formed by posttranslational hydroxylation of some lysine residues.

β-Cryptoxanthin ((3R)-β-Cryptoxanthin), isolated from Satsuma mandarin orange, is an oxygenated carotenoid and a potent antioxidant. β-Cryptoxanthin has an anti-stress effect.