Ubiquinone-1 (UQ-1) is an intermediate in the biosynthesis of coenzyme Q, an essential coenzyme in the body's redox reactions, involved in multiple oxidation-reduction processes.

Geldanamycin, an HSP90 inhibitor (Kd: 1.2 μM), specifically disrupts glucocorticoid receptor (GR)/HSP association.

Coenzyme Q9 (Ubiquinone 9) (CoQ9) is a normal constituent of human plasma. CoQ9 in human plasma may originate as a product of incomplete CoQ10 biosynthesis or from the diet.

Pyrroloquinoline quinone disodium salt (Methoxatin disodium salt), an aromatic tricyclic o-quinone, is a redox cofactor for bacterial dehydrogenases. It is an efficient electron transfer catalyst from a number of organic substrates to molecular oxygen (O2), constructing quinoprotein model reactions.

Coenzyme Q10 (CoQ10) is a naturally occurring lipid-soluble quinone compound derived from Fusarium oxysporum. Coenzyme Q10 functions as an electron carrier in the mitochondrial respiratory chain, sustaining mitochondrial energy metabolism. Coenzyme Q10 is applicable in research on mitochondrial dysfunction, oxidative stress damage, cardiovascular diseases, and neurodegenerative disorders.

Primin is a natural product stored in trichomes on the leaves and stems of Primula obconica, exhibiting antimycobacterial and strong antineoplastic actions.

Pyrroloquinoline quinone (PQQ), as a well-known redox enzyme cofactor, PQQ can protect NS/PCs against glutamate toxicity associated with ROS-mediated mitochondrial pathway,

Cornoside is a natural phenolic glycoside that inhibits rat lens aldose reductase (AR) activity, reducing oxidative stress and inflammation in diabetic complications.

Embelin (Embelic acid), isolated from the Japanese Ardisia herb, is an inhibitor of the X-linked inhibitor of apoptosis (IC50: 4.1 uM).

Homoembelin (2,5-dihydroxy-3-nonyl-1,4-benzoquinone) is a pigment from E. ribes and C. monocarpus that has antibacterial effects and can be used to study multidrug-resistant bacterial infections.

Thymoquinone (NSC 2228) is a compound be found in herbs and spices with anti-inflammatory and anti-oxidant effects.

Oosporein is a mycotoxin produced by Trichoderma reesei with antimicrobial, antiviral and insecticidal activities, inhibits P. infestans, inhibits herpes simplex virus type 1 DNA polymerase, and can be used in the study of viral infections.

Rapanone (2,5-Dihydroxy-3-tridecyl-[1,4]benzoquinone) is a natural benzoquinone that is a potent and selective inhibitor of human synovial PLA2.

Aloenin B, a compound isolated from the leaves and roots of Aloe vera, has neuroprotective activity against glutamate-induced neuronal death in HT22 cells.

Coenzyme Q8 (Ubiquinone 8) is an isoprenoid quinone isolated from the plasma membrane of wild-type or long-lived qm30 and qm51 clk-1 mutant strains of Cryptomeria cepacia that mediates electron transfer in the aerobic respiratory chain and reduces oxidative stress.

Mitomycin A is a cytotoxic antibiotic derived from Streptomyces sp. with anticancer activity and antitumor activity.Mitomycin A is used in the study of solid cancers.

Herbaridine B is a natural product for research related to life sciences. The catalog number is TN5791 and the CAS number is 1151511-05-5.

Altersolanol A (Stemphylin; NSC 173943) demonstrates effective antimicrobial properties, inhibiting the growth of Bacillus subtilis and Pseudomonas aeruginosa with a minimum inhibitory concentration (MIC) ranging from 25-100 μg/mL. Additionally, it shows no phytotoxic effects on Taxus at a concentration of 4 μg/μL.

3-Methoxy-2,5-toluquinone is an antimicrobial agent that exhibits moderate antibacterial and antifungal properties.

4-Hydroxyphlebiarubrone is a quinone antibiotic. It exhibits weaker resistance against Gram-negative bacteria and possesses cytotoxic properties.

Sakyomicin C is a benzoquinone antibiotic. It exhibits activity against Gram-positive bacteria and mycobacteria.

Saframycin B exhibits activity against Gram-positive bacteria and has weaker efficacy against mycobacteria.

Irisquinone, a natural anticancer agent, also acts as a radiation sensitizer for cancer therapies. It diminishes glutathione (GSH) levels and hampers the repair of single-strand DNA breaks [1] [2] [3].

MORINDONE, an anthraquinone compound, exhibits significant binding affinity towards multiple targets including β-catenin, MDM2-p53, and KRAS. It displays notable cytotoxicity and selective activity against colorectal cancer cell lines, and effectively downregulates the expression of mutated TP53 and KRAS genes.