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Inosine (NSC-20262) is a purine nucleoside that has hypoxanthine linked by the N9 nitrogen to the C1 carbon of ribose. It has immunomodulatory, neuroprotective, and analgesic properties.

Baicalein (5,6,7-Trihydroxyflavone) is a xanthine oxidase inhibitor.

N-Demethylricinine (4-Methoxy-2-oxo-1,2-dihydro-pyridine-3-carbonitrile) was reported as xanthine oxidase inhibitor.

Oxypurinol is a xanthine oxidase inhibitor. Oxipurinol is potentially used for the treatment of congestive heart failure.

Blumeatin has antioxidant properties, free radical scavenging activity,and has xanthine oxidase (XO) inhibitory activity.

Doxorubicin hydrochloride (Adriamycin) belongs to the anthracycline class of antibiotics and is an inhibitor of human DNA topoisomerase I II (IC50=0.8 2.67 μM). Doxorubicin hydrochloride exhibits cytotoxicity and antitumor activity. Doxorubicin hydrochloride reduces the phosphorylation of AMPK and its downstream target protein acetyl coenzyme A carboxylase, and induces apoptosis and autophagy.

6-Diazo-5-oxo-L-nor-Leucine (L-6-Diazo-5-oxonorleucine) is a glutaminase antagonist (Ki: 6 μM) and an antineoplastic antibiotic produced by an unidentified Streptomyces species from Peruvian soil.

Doxofylline (Doxophylline) is a methylxanthine derivative with the presence of a dioxolane group in position 7. As a drug used in the treatment of asthma, doxofylline has shown similar efficacy to theophylline but with significantly fewer side effects in animal and human studies.

Mono-Methyl glutarate is an endogenous metabolite i with anti-inflammatory and antioxidant activity.

3-Ethoxy-3-oxopropanoic acid (Monoethyl malonic acid) belongs to the class of organic compounds known as dicarboxylic acids and derivatives. These are organic compounds containing exactly two carboxylic acid groups. 3-Ethoxy-3-oxopropanoic acid exists as a solid, soluble (in water), and a weakly acidic compound (based on its pKa). 3-Ethoxy-3-oxopropanoic acid has been primarily detected in blood. Within the cell, monoethyl malonic acid is primarily located in the cytoplasm.

(R)-5-Oxopyrrolidine-2-carboxylic acid (D-Pyroglutamic acid) is a cyclic derivative of glutamic acid, physiologically present in mammalian tissues. It releases GABA from the cerebral cortex and exhibits anti-anxiety effects in a simple approach-avoidance conflict situation in rats. In clinical pharmacology experiments, it significantly shortens the plasma half-life of ethanol during acute intoxication.

D-Lyxose (D-(-)-Lyxose) is used as a chiral building block.

(Z)-4-Amino-4-oxobut-2-enoic acid (Maleamic acid) is a valuable compound for research applications.

4-Methyl-2-oxopentanoic acid is an abnormal metabolite, a neurotoxin and a metabolic toxin.

3-Methyl-2-oxobutanoic acid (2-Oxoisovaleric acid) is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids. 3-Methyl-2-oxobutanoic acid is a neurotoxin, an acidogen, and a metabotoxin. A neurotoxin causes damage to nerve cells and nerve tissues. 3-Methyl-2-oxobutanoic acid is a keto-acid, which is a subclass of organic acids. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis.

Fidaxomicin (Tiacumicin B) is a semisynthetic macrolide antibiotic used to treat Clostridium difficile-associated diarrhea in adults. Fidaxomicin has minimal systemic absorption and has not been linked to serum enzyme elevations during therapy or to instances of clinically apparent, acute liver injury.

Bardoxolone (CDDO) is a synthetic oleanane triterpenoid that blocks the cellular synthesis of inducible nitric oxide synthase and inducible COX-2 in INF-γ-activated mouse macrophages with an IC50 value of 0.4 nM. By suppressing reactive oxygen and nitrogen species (ROS RNS) formation, it promotes the cellular control of ROS RNS levels that would lead to DNA damage associated with tumorigenesis. In various Y cell lines, Bardoxolone has been shown to specifically inhibit proliferation and induce apoptosis. Mechanism studies revealed that Bardoxolone is a ligand for peroxisome proliferator-activated receptor γ, and also that it induces genes regulated by Nrf2, including heme oxygenase-1 and eotaxin-1, which play a role in antioxidant response element signaling activity.

Oxoadipic acid (2-Oxoadipic acid) is a key metabolite of the essential amino acids tryptophan and lysine.Important metabolite between the TCA cycle and lysine biosynthesis. Of interest for research on mitochondrial metabolite transporters.

Xanthotoxol (Psoralen) is a biologically active linear furocoumarin, shows strong pharmacological activities as anti-inflammatory, antioxidant, 5-HT antagonistic, and neuroprotective effects.

Carbenoxolone (Biogastrone) is an inhibitor of 11β-HSD and gap junction connexin channels. Carbenoxolone inhibits macrophage migration into atria and prevents the development of fatty liver disease.

11-Oxomogroside IIa is a cucurbitane glycoside extracted from the fruits of Siraitia grosVenorii. It has inhibitory effects against the EBV-EA activation induced by TPA, shows weak inhibitory effects on activation of NOR 1, a nitric oxide (NO) donor.

11-Oxomogroside IIe is a triterpene glycoside isolated from Siraitia grosvenori [1].

13-Oxo-9E,11E-octadecadienoic acid, a potent PPARα activator derived from tomato juice and isomer of 9-oxo-ODA, exhibits the ability to decrease plasma and hepatic triglyceride levels in obese diabetic mice[1].

Calcium 2-oxoglutarate, an intermediate in the production of GTP or ATP in the Krebs cycle, is a reversible inhibitor of tyrosinase (IC50: 15 mM).