fe2+

PHD-1-IN-1 is a potent inhibitor of hypoxia-inducible factor prolylhydroxylase domain-1 (PHD-1) enzyme(IC50 = 0.034 μM).

1. Thonningianin A has anti-cancer activities.2. Thonningianin A represents a new potent glutathione S-transferase in vitro inhibitor.3. Thonningianin A has antioxidant property, involves radical scavenging, anti-superoxide formation and metal chelation.

6-epiforesticine is an alkaloid discovered in Aconitum handelianum that exhibits chelating activity toward ferrous ions (Fe²⁺) (IC₅₀ = 5.04 mg/L) and possesses potential antioxidant effects.

Degarelix is a peptide and selective GnRH (human gonadotropin-releasing hormone) receptor antagonist that treats prostate cancer by lowering testosterone levels in the body.

Selepressin, an analog of vasopressin, is a potent, selective vasopressin V1a receptor agonist.

Difelikefalin (CR-845; FE-202845) is a peripherally restricted, selective kappa opioid receptor (KOR) agonist with anti-inflammatory properties, demonstrating potential for modulating pruritus in chronic kidney disease.

Barusiban is an oxytocin receptor antagonist.

Difelikefalin TFA is a κ-opioid receptor (KOR) agonist. It activates KOR in HEK293 cells expressing the human receptor (EC50 = 0.16 nM in a transactivation assay) and inhibits forskolin-induced cAMP production in R1.G1 mouse thyoma cells (EC50 = 0.048 nM). Difelikefalin TFA is selective for KOR over the μ-opioid receptor (MOR; EC50 = >1 µM in a transactivation assay). It reduces acetic acid-induced writhing, as well as scratching behavior induced by the KOR antagonist GNTI, in mice (ED50s = 0.07 and 0.05 mg/kg, respectively).

Difelikefalin HCl is a κ-opioid receptor (KOR) agonist. It activates KOR in HEK293 cells expressing the human receptor (EC50 = 0.16 nM in a transactivation assay) and inhibits forskolin-induced cAMP production in R1.G1 mouse thyoma cells (EC50 = 0.048 nM). Difelikefalin HCl is selective for KOR over the μ-opioid receptor (MOR; EC50 = >1 µM in a transactivation assay). It reduces acetic acid-induced writhing, as well as scratching behavior induced by the KOR antagonist GNTI, in mice (ED50s = 0.07 and 0.05 mg/kg, respectively).

RK-52 is a synthetic inhibitor of rhodesain, characterized by an impressive ksecond value (ksecond = 67000 × 103 M−1 min−1) and by a picomolar affinity toward the trypanosomal protease (Ki = 38 pM).

FE-200041 is a peripheral efficacious kappa opioid agonist.

GR-127935 is a potent and selective 5-HT1B/1D receptor antagonist.

CR 665 (JNJ 38488502) is a peripherally selective κ-opioid agonist with an EC50 of 10.9 nM for kappa opioid receptor activation, used in peripheral pain research.

11(Z),14(Z),17(Z)-Eicosatrienoic acid methyl ester is the ester derivative of 11(Z),14(Z),17(Z)-eicosatrienoic acid, identified within lipid-producing microalgae Nannochloropsis, as well as in diesel-contaminated soils and residential wastewater.

All-cis-4,7,10,13,16-Docosapentaenoic acid ethyl ester (all-cis-4,7,10,13,16-DPA ethyl ester) is a derivative of docosapentaenoic acid (DPA), an omega-3 fatty acid prevalent in fish oils. This ethyl ester form is commonly included in dietary supplements formulations to enhance omega-3 fatty acid intake.

Ethyl Tricosanoate, a long-chain saturated fatty acid ethyl ester, is found in small amounts in C. conicum and C. conicum. The free acid form reduces the hemolytic activity of Staphylococcus aureus delta toxin on human erythrocytes.

Phytanic acid methyl ester is an esterified form of long-chain fatty acids and specifically phytanic acid, identified in Greek tobacco.

Apraglutide (FE 203799 is a synthetic 33-amino acid peptide and long-acting glp-2 analogue.

Difelikefalin acetate (CR 845 acetate) is a peripherally restricted kappa opioid receptor agonist. CR845 exhibit low P450 CYP inhibition and low penetration into the brain.

Nitroxoline (5-nitroquinolin-8-ol) is a urinary antibacterial agent active against susceptible gram-positive and gram-negative organisms commonly found in urinary tract infections.

o-Phenanthroline (1,10-Phenanthroline) , a metal chelator, prevents the induction of chromosomal aberrations in streptozotocin-treated cells.o-Phenanthroline protects mammalian cells from hydrogen peroxide-induced gene mutation and morphological transformation.

o-Phenanthroline monohydrate (1, 10-Phenanthroline monohydrate) is an inhibitor of metallopeptidases, inhibits zinc-dependent hydrolysis of Fa-Gly-Leu-NH2 by B. subtilis neutral protease and B. thermoproteolyticus thermolysin.

2,5-dimethoxycyclohexa-2,5-diene-1,4-dio (Thermophillin) is a natural product. The redox cycle of 2,5-dimethoxybenzoquinone is a source of reducing equivalent for the regeneration of Fe2+ and H2O2 in brown rot fungal decay of wood.

H3R antagonist 4 (compound 11l) serves as a dual inhibitor of cholinesterases and histamine H3 receptors (H3R), demonstrating IC50 values of 7.04 μM (eeAChE), 9.73 μM (hAChE)(reversible), and 1.09 nM (H3R). It effectively inhibits both self and Cu2+-induced Aβ1-42 aggregation at 95.48% and 88.63%, respectively, and degrades Aβ1-42 protofibrils with 80.16% and 89.30% efficiency under similar conditions. Additionally, H3R antagonist 4 possesses the chelating capability for biometals Cu2+, Zn2+, Al3+, and Fe2+. It significantly reduces tau protein hyperphosphorylation induced by Aβ1-42, inhibits RSL-3 induced apoptosis and ferroptosis in PC12 cells, and shows optimal blood-brain barrier permeability and intestinal absorption characteristics in hCMEC/D3 and hPepT1-MDCK cells, respectively. Moreover, the compound improves learning and memory impairments in an Alzheimer's mouse model induced with scopolamine.