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L-Ascorbic acid (Vitamin C) is a natural product that is a potent reducing agent and antioxidant. L-Ascorbic acid functions in fighting bacterial infections, in detoxifying reactions, and in the formation of collagen. L-Ascorbic acid is used in the treatment of scurvy.

TMPD dihydrochloride is an active substrate of enzymatically convert redox and an electron donor for the reduction of heme peroxidases.

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.

Rotenone is a natural plant-derived insecticide that acts as an inhibitor of mitochondrial electron transport chain complex I. It promotes the generation of mitochondrial reactive oxygen species, induces apoptosis, and is commonly used to establish Parkinson's disease models.

Rufigallol (AI3-00865) is an electron-deficient disk-shaped molecule with six hydroxyl groups and is a good unit for inducing the formation of DLC from non-planar AIE molecules, an anthraquinone derivative.Rufigallol induces the acquisition of DLC properties, while the introduction of TPE groups gives the molecular structure good fluorescence in the aggregated state.The remarkable synergistic in vitro antimalarial effect, in vivo with vitamin C and ketones was synergistic and showed antimalarial activity.

BRD6897 is a mitochondrial content inducer that increases the cellular content of mitochondria and induces a significant increase in the electron density of existing mitochondria.

Idebenone (CV-2619) is a synthetic analogue of ubiquinone (Coenzyme Q10), a vital cell antioxidant and essential component of the Electron Transport Chain (ETC).

DPPH (2,2-Diphenyl-1-picrylhydrazyl) is a cell-permeable, stable free radical commonly used to evaluate the free radical scavenging ability, hydrogen donation capacity of compounds, and to measure the antioxidant activity of tissue extracts.

Nitazoxanide (NSC-697855) is a synthetic benzamide with antiprotozoal activity. Nitazoxanide exerts its antiprotozoal activity by interfering with the pyruvate ferredoxin/flavodoxin oxidoreductase dependent electron transfer reaction.

NAD+ (β-Nicotinamide Adenine Dinucleotide) is a coenzyme composed of ribosylnicotinamide 5'-diphosphate coupled to adenosine 5'-phosphate by pyrophosphate linkage. It is found widely in nature and is involved in numerous enzymatic reactions in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH).

Fenpyroximate is an acaricide and insecticide. It blocking the mitochondrial electron transport in complex I.

Azoxystrobin (Bankit) is a broad-spectrum fungicide. Azoxystrobin induces ROS production, cell apoptosis and mitochondrial respiration by blocking electron transfer between cytochromes b and c1.

PTZ-343 is a potent enhancer of Luminol, acting as an electron transfer mediator. It reacts with HRP-II to release HRP and a PTZ-343 radical, which then oxidizes luminol anions to induce light emission.

NADP disodium salt (Disodium NADP) is a nicotinamide adenine dinucleotide. NADP disodium salt is a key redox cofactor for electron transfer in the metabolism, serves as an electron carrier in a number of reactions, being alternately oxidized (NADP+) and reduced (NADPH).

DMPO (5,5-Dimethyl-1-pyrroline N-oxide) is a kind of water-soluble nitric oxide spin trap, which allows the measurement of oxygen-centered free radicals in biological systems at room temperature using electron spin resonance. It has a high reaction rate constant for superoxide and hydroxyl radicals and distinguishes simultaneously among a variety of important biologically generated free radicals.

Coenzyme Q10 (CoQ10) (ubiquinone) is a naturally occurring compound, acting as the electron carrier in the mitochondrial respiratory chain.

Metribuzin (4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5 (4H)-one) is a selective triazinone herbicide applied in both pre- and post-emergence agricultural practices for the control of weeds in a variety of crops including soybeans, potatoes, tomatoes, and sugar cane, which functions by inhibiting the photosynthetic process through the specific disruption of the electron transport chain within photosystem II, and its extensive use has resulted in its classification as a persistent environmental contaminant frequently detected in groundwater sources.

Metamitron is a photosynthetic electron transport chain inhibitor and can be used as a chemical thinner.

Hexaflumuron is a chitin synthesis inhibitor used to bait and eliminate termite colonies. Termites are unable to metabolize hexaflumuron and clearance is slow, resulting in up to 100% elimination. Hexaflumuron has also been tested for use with the raisin

NADH disodium salt (Disodium NADH) hydrate is the reduced form of nicotinamide adenine dinucleotide (NAD) that can donate electrons in a reducing reaction, becoming oxidized to produce NAD+. Various enzymes utilize NADH disodium salt hydrate plus H+ to reduce substrates, generating NAD+ and the reduced product.

Malonic acid (propanedioic acid) is the archetypal example of a competitive inhibitor: it acts against succinate dehydrogenase (complex II) in the respiratory electron transport chain. Malonic acid is found to be associated with malonyl-CoA decarboxylase deficiency, which is an inborn error of metabolism.

Ammonium formate (Formic acid ammonium salt) is the simplest carboxylic acid. Formate is an intermediate in normal metabolism. It is responsible for both metabolic acidosis and disrupting mitochondrial electron transport and energy production by inhibiting cytochrome oxidase activity, the terminal electron acceptor of the electron transport chain. Cell death from cytochrome oxidase inhibition by formate is believed to result partly from depletion of ATP, reducing energy concentrations so that essential cell functions cannot be maintained. Furthermore, inhibition of cytochrome oxidase by formate may also cause cell death by increased production of cytotoxic reactive oxygen species (ROS) secondary to the blockade of the electron transport chain.

Tempo (2,2,6,6-Tetramethylpiperidinooxy) has a wide range of applications including use as a free radical scavenger, a reagent in organic synthesis and as a structural probe in electron spin resonance spectroscopy.

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.