2. Signaling Pathways
  3. Immunology/Inflammation
    Metabolic Enzyme/Protease
    NF-κB
  4. Reactive Oxygen Species (ROS)

Reactive Oxygen Species (ROS)

Reactive Oxygen Species (ROS)

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Reactive oxygen species (ROS), such as superoxide anion (O2-), hydrogen peroxide (H2O2), and hydroxyl radical (HO•), consist of radical and non-radical oxygen species formed by the partial reduction of oxygen. Cellular ROS are generated endogenously during mitochondrial oxidative metabolism as well as in cellular response to xenobiotics, cytokines, and bacterial invasion.

ROS also activates MAPK pathways by the direct inhibition of MAPK phosphatases. Through PTEN, the PI3K pathway is subject to reversible redox regulation by ROS generated by growth factor stimulation. The activation of autophagy may be a cellular defense mechanism in response to ROS.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-181688
    2α-Ferrocenylmethyl-DHT
    		Activator
    2α-Ferrocenylmethyl-DHT is a dihydrotestosterone-derived ferrocene-steroid conjugate. 2α-Ferrocenylmethyl-DHT inhibits the growth of various cancer cells. 2α-Ferrocenylmethyl-DHT induces S-phase cell cycle arrest in ovarian cancer cells, elevates intracellular iron levels, triggers ROS-dependent cell death, and disrupts the integrity of multicellular tumor spheroids of ovarian cancer cells. 2α-Ferrocenylmethyl-DHT can be used in the research of prostate cancer and ovarian cancer.
    2α-Ferrocenylmethyl-DHT
  • HY-162311
    Anticancer agent 194
    		Activator
    Anticancer agent 194 (compound 10p) is a ferroptosis and autophagy inducer. Anticancer agent 194 arrests colon cancer cell cycle at G2/M phase, but can't induce cell apoptosis. Anticancer agent 194 independently triggeres cell ferroptosis and autophagy through the massive accumulation of ROS.
    Anticancer agent 194
  • HY-P11600
    SGNLTKYWKKIWKPGIKKWIK
    		Inducer
    SGNLTKYWKKIWKPGIKKWIK is a thymidylate kinase (TMK)-targeting antimicrobial peptide with a KD value of 4.721 μM. SGNLTKYWKKIWKPGIKKWIK exerts antimicrobial effects through multiple mechanisms, including membrane disruption, induction of ROS, and DNA binding. SGNLTKYWKKIWKPGIKKWIK shows remarkable activity against Gram-negative bacteria, possesses good biocompatibility, and rarely induces drug resistance. SGNLTKYWKKIWKPGIKKWIK can be used for research on Gram-negative bacterial infections.
    SGNLTKYWKKIWKPGIKKWIK
  • HY-N0361R
    Dihydrocapsaicin (Standard)
    		Inhibitor
    Dihydrocapsaicin (Standard) is the analytical standard of Dihydrocapsaicin. This product is intended for research and analytical applications. Dihydrocapsaicin, a capsaicin, is a potent and selective TRPV1 (transient receptor potential vanilloid channel 1) agonist. Dihydrocapsaicin reduces AIF, Bax, and Caspase-3 expressions, and increased Bcl-2, Bcl-xL and p-Akt levels. Dihydrocapsaicin enhances the hypothermia-induced neuroprotection following ischemic stroke via PI3K/Akt regulation in rat.
    Dihydrocapsaicin (Standard)
  • HY-P10852
    TAT-MKK3b
    		Inhibitor
    TAT-MKK3b is a p38 peptide inhibitor. TAT-MKK3b can inhibit p38 phosphorylation. TAT-MKK3b has renal targeting, ROS-scavenging, and ferroptosis-mitigating capabilities. TAT-MKK3b improves acute kidney injury and its progression to chronic kidney disease.
    TAT-MKK3b
  • HY-180357
    Graviquinone
    		Inducer
    Graviquinone is a Chk1 inhibitor. Graviquinone exhibits potent cytotoxicity against various cancer cell lines. Graviquinone possesses the characteristics of bypassing ABCB1-mediated multidrug resistance, selectively damaging cancer cell DNA, and regulating the DNA damage response. Graviquinone can also enhance cytotoxicity by increasing ROS levels in cancer cells. Graviquinone can be used for cancer research.
    Graviquinone
  • HY-145414
    DYSP-C34
    		Activator
    DYSP-C34 is a potent, biocompatible, and ultrasound (US)-triggered multifunctional molecular machine. DYSP-C34 has multiple favorable properties, such as improved lipophilic/hydrophilic balance, intensified US-induced ROS production capacity, and better cellular permeability, resulting in the excellent tumor target efficiency and notable sonodynamic therapy (SDT)-mediated tumor regression. DYSP-C34 exhibits mild immunogenicity by stimulating APCs directly.
    DYSP-C34
  • HY-16731
    Sembragiline
    Sembragiline (EVT 302) is a potent, selective and reversible monoamine oxidase B (MAO-B) inhibitor. Sembragiline reduces the metabolism of dopamine and other amine neurotransmitters by inhibiting the activity of the MAO-B enzyme, thereby potentially increasing the concentration of these neurotransmitters in the brain. Inhibition of the MAO-B enzyme also reduces the formation of toxic reactive oxygen species (ROS) that play a role in the pathological process of AD. Sembragiline has good oral activity and blood-brain barrier permeability. Sembragiline can be used in studies of AD, especially in patients with AD who show increased MAO-B activity.
    Sembragiline
  • HY-176274
    FASN/SCD-IN-1
    		Inhibitor
    FASN/SCD-IN-1 is a Silybin (HY-N0779A) derivative, an orally active inhibitor of Fatty Acid Synthase (FASN)/Stearoyl-CoA Desaturase (SCD). FASN/SCD-IN-1 has shown in vitro activity in inhibiting lipid deposition, reducing FASN and SCD transcriptional levels, and exhibiting antioxidant, anti-inflammatory, and anti-fibrotic activities. FASN/SCD-IN-1 has demonstrated significant hepatoprotective effects in a rat model of acute liver injury. FASN/SCD-IN-1 ameliorates the pathological features of MASH liver, including steatosis, inflammation, and fibrosis in a mouse model of myeloproliferative steatohepatitis (MASH). FASN/SCD-IN-1 can be used to study MASH.
    FASN/SCD-IN-1
  • HY-148944
    Didocosahexaenoin
    		Inducer
    Didocosahexaenoin, an omega-3 derivative, is a diglyceride of DHA and can be synthesised from DHA triglycerides. Didocosahexaenoin causes significant loss of mitochondrial membrane potential and induces ROS production. Didocosahexaenoin induces apoptosis. Didocosahexaenoin induces stronger cytotoxicity than DHA in human prostate carcinoma cells.
    Didocosahexaenoin
  • HY-128463S
    N-tert-Butyl-α-phenylnitrone-d14
    N-tert-Butyl-α-phenylnitrone-d14 is the deuterium labeled N-tert-Butyl-α-phenylnitrone. N-tert-Butyl-α-phenylnitrone is a nitrone-based free radical scavenger that forms nitroxide spin adducts. N-tert-Butyl-α-phenylnitrone inhibits COX2 catalytic activity. N-tert-Butyl-α-phenylnitrone has potent ROS scavenging, anti-inflammatory, neuroprotective, anti-aging and anti-diabetic activities, and can penetrate the blood-brain barrier.
    N-tert-Butyl-α-phenylnitrone-d<sub>14</sub>
  • HY-180155
    Keap1/Nrf2/ARE activator 2
    		Inhibitor
    Keap1/Nrf2/ARE activator 2 is an activator of Keap1/Nrf2/ARE pathway and non-competitively inhibits AChE with an IC50 of 14.79 μM and a Ki of 1.35 μM. Keap1/Nrf2/ARE activator 2 promotes Nrf2 nuclear translocation, leading to antioxidant gene upregulation and enhanced cellular defense against oxidative stress. Keap1/Nrf2/ARE activator exhibits robust neuroprotection against both H2O2- and Scopolamine (SCA) (HY-N0296)-induced injury in PC12 cells. Keap1/Nrf2/ARE activator 2 ameliorates memory impairment and the neuro-inflammation associated with SCA-initiated cognitive dysfunction in a zebrafish model. Keap1/Nrf2/ARE activator 2 can be used for the research of Alzheimer's disease.
    Keap1/Nrf2/ARE activator 2
  • HY-W777458
    Fluorene-13C6
    Fluorene-13C6 is the 13C-labeled Fluorene (HY-W026772). Fluorene is an orally active polycyclic aromatic hydrocarbon (PAH) and a precursor to other fluorene-based compounds. Fluorene and its derivatives serve as dye precursors for fluorene synthesis. In A549 cells, Fluorene induces oxidative stress and inflammatory responses by increasing ROS and SOD generation, exacerbating lipid peroxidation, modulating antioxidant enzyme activity, and upregulating the expression of pro-inflammatory factors TNF-α and IL-6. In vivo, Fluorene exhibits anxiolytic activity. Fluorene holds potential for research in inflammation and neurological disorders.
    Fluorene-<sup>13</sup>C<sub>6</sub>
  • HY-N15711
    Ganoleucoin R
    		Inhibitor
    Ganoleucoin R is a triterpenoid compound that can be isolated from Ganoderma leucocontextum. Ganoleucoin R exerts a protective effect against H2O2-induced oxidative damage and can promote neurite outgrowth in PC12 cells. Ganoleucoin R possesses neuroprotective and neurogenic activities, and can be used in the research of neurodegenerative diseases.
    Ganoleucoin R
  • HY-170562
    STEP-IN-1
    		Inhibitor
    STEP-IN-1 (Compound 14b) is a potent and selective STEP inhibitor with an IC50 of 5.27 μM. STEP-IN-1 has a neuroprotective effect, which can protect nerve cells from glutamate-induced toxicity, reduce cellular ROS accumulation, and inhibit apoptosis. STEP-IN-1 can be used in the study of neurodegenerative diseases.
    STEP-IN-1
  • HY-178178
    PARP1-IN-46
    		Agonist
    PARP1-IN-46 is a potent PARP-1 inhibitor with an IC50 of 2.4 nM. PARP1-IN-46 demonstrates remarkable anti-proliferative activity in both rat (C6) and human (U87MG) glioma cells. PARP1-IN-46 promotes PARP cleavage, triggers DNA damage, and increases ROS. PARP1-IN-46 effectively inhibits the migration, invasion and colony formation of glioma cells, and ultimately induces cell apoptosis. PARP1-IN-46 can be used to the study of glioma.
    PARP1-IN-46
  • HY-174399
    AChE/BChE-IN-27
    		Inhibitor
    AChE/BChE-IN-27 is a blood-brain barrier-permeable mixed inhibitor (Pe = 4.12) of AChE and BChE, with IC50 values of 3.72 μM and 9.65 μM, respectively. AChE/BChE-IN-27 has potent antioxidant activity with an IC50 value of 6.32 μM in the DPPH (HY-112053) assay and also exhibits potent in vitro antioxidant activity. AChE/BChE-IN-27 exhibits metal chelating properties. AChE/BChE-IN-27 has neuroprotective potential against oxidative stress. AChE/BChE-IN-27 significantly reduces intracellular reactive oxygen species (ROS). In in vivo experiments, AChE/BChE-IN-27 effectively restored AChE and BChE levels, improved cognition, and can be used for Alzheimer's disease (AD).
    AChE/BChE-IN-27
  • HY-157779
    TPA-NAC
    		Inhibitor
    TPA-NAC is a nonfluorogenic prodrug by introducing N-acetyl-L-cysteine (NAC) into a conjugated acceptor skeleton. TPA-NAC is capable of fluorogenic selective labeling of HSA.
    TPA-NAC
  • HY-168739
    Topoisomerase I inhibitor 17
    		Activator
    Topoisomerase I inhibitor 17 (Compound 7h) is a Topoisomerase I (Top1) inhibitor. Topoisomerase I inhibitor 17 reduces DDX5 and reverses the locking of Top1 activity by DDX5. Topoisomerase I inhibitor 17 induces Top1-mediated DNA damage and promotes reactive oxygen species (ROS) production. Topoisomerase I inhibitor 17 induces Apoptosis (reduces antiapoptotic proteins XIAP, Bcl-2, Survivin and up-regulates pro-apoptotic proteins Bax, γH2AX). Topoisomerase I inhibitor 17 also blocks the progression of the G2/M checkpoint and induces cell cycle arrest. Topoisomerase I inhibitor 17 significantly inhibits colony formation and cell migration in colorectal cancer cells. Topoisomerase I inhibitor 17 effectively reduces tumors in human PDX tumor mice.
    Topoisomerase I inhibitor 17
  • HY-N12042
    Taxamairin B
    		Inhibitor
    Taxamairin B is a potent anti-inflammatory agent. Taxamairin B decreases proinflammatory cytokines (TNF-α, IL-1β and IL-6) expression and the production of NO and ROS in LPS-induced RAW264.7 cells. Taxamairin B exhibits significant protective effects in LPS-induced acute lung injury in mice.
    Taxamairin B
Cat. No. Product Name / Synonyms Application Reactivity