2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Succinate Dehydrogenase

Succinate Dehydrogenase

Succinate Dehydrogenase (SDH), also known as electron transport chain complex II, is a vital enzyme involved in both the citric acid cycle and oxidative phosphorylation. It catalyzes the oxidation of succinate to fumarate, transferring electrons to ubiquinone in the electron transport chain, which is essential for ATP generation and mitochondrial function. In eukaryotes, SDH is composed of four subunits (SDHA-D), localized to the inner mitochondrial membrane, while in prokaryotes, it is found in the cytoplasmic membrane. SDH deficiency can lead to an abnormal accumulation of succinate, contributing to age-related organ degeneration in tissues expressing SUCNR1. Elevated succinate levels have been linked to skeletal diseases such as osteoporosis, rheumatoid arthritis, and osteoarthritis. This highlights the importance of SDH in maintaining cellular homeostasis and preventing metabolic disorders[1][2][3].

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-19688
    Sitamaquine
    		Inhibitor
    Sitamaquine (WR 6026) is an orally active Antileishmanial agent and Succinate dehydrogenase inhibitor. Sitamaquine accumulates in the acidocalcisomes of Leishmania, induces organelle alkalization, and crosses the plasma membrane of Leishmania via temperature- and energy-independent diffusion. Sitamaquine disrupts oxidative phosphorylation in Leishmania, induces mitochondrial depolarization, oxidative stress, elevated intracellular calcium, plasma membrane depolarization, and Apoptosis-like cell death. Sitamaquine can be used in the research of leishmaniasis.
    Sitamaquine
  • HY-N7114AR
    Chloramphenicol succinate sodium (Standard)
    		Substrate
    Chloramphenicol succinate sodium (Standard) is the analytical standard of Chloramphenicol succinate sodium. This product is intended for research and analytical applications. Chloramphenicol succinate sodium is a prodrug of Chloramphenicol (HY-B0239), acting as a P2Y14R inhibitor with an IC50 of 1.585 nM. Chloramphenicol succinate sodium serves as a competitive substrate and inhibitor of succinate dehydrogenase (SDH), which may account for its toxicity. Chloramphenicol succinate sodium exerts a significant inhibitory effect on colitis. Chloramphenicol succinate sodium can be used in research related to myelosuppression, gray baby syndrome, aplastic anemia, bacterial meningitis and inflammatory bowel disease.
    Chloramphenicol succinate sodium (Standard)
  • HY-174390
    SDH-IN-29
    		Inhibitor
    SDH-IN-29 (Compound A33) is a SDH inhibitor with an IC50 of 0.0709 μM. SDH-IN-29 has a broad spectrum of antifungal activities (EC50s of 0.356, 0.798 and 0.146 μg/mL for Fusarium graminearum, Sclerotinia sclerotiorum, and Rhizoctonia solani, respectively). SDH-IN-29 has moderate to significant protective effects against rice blast, wheat scab and cucumber powdery mildew.
    SDH-IN-29
  • HY-175501
    Succinate dehydrogenase-IN-11
    		Inhibitor
    Succinate dehydrogenase-IN-11 (Compound A12) is a succinate dehydrogenase inhibitor with an IC50 value of 3.58 μM. Succinate dehydrogenase-IN-11 exhibits antifungal activity. Succinate dehydrogenase-IN-11 shows activity against fungi such as R. solani, B. cinerea, F. graminearum, and S. sclerotiorum in vitro. Succinate dehydrogenase-IN-11 also exerts a controlling effect on R. solani, P. pachyrhizi, and P. sorghi in vivo. Succinate dehydrogenase-IN-11 can be used in research related to antifungal applications.
    Succinate dehydrogenase-IN-11
  • HY-178801
    SDH-IN-39
    		Inhibitor
    SDH-IN-39 (Compound A16) is a SDH inhibitor, with an IC50 value of 6.83 μg/mL. SDH-IN-39 is also an antifungal agent. SDH-IN-39 shows antifungal activity against Rhizoctonia solani (EC50 of 1.49 μg/mL), G. zeae, C. gloeosporioides, S. sclerotiorum and M. oryzae.
    SDH-IN-39
  • HY-135549R
    Fluxapyroxad (Standard)
    		Inhibitor
    Fluxapyroxad (Standard) is the analytical standard of Fluxapyroxad. This product is intended for research and analytical applications. Fluxapyroxad is a synthetic broad-spectrum fungicide for the control of fungal diseases. It works by inhibiting succinate dehydrogenase in complex II of the mitochondrial respiratory chain, resulting in inhibition of spore germination, germ tubes and mycelia growth within the fungus target species.
    Fluxapyroxad (Standard)
  • HY-178799
    SDH-IN-37
    		Inhibitor
    SDH-IN-37 (Compound A37) is a potent SDH inhibitor, with an IC50 value of 0.0263 μM. SDH-IN-37 is also an antifungal agent. SDH-IN-37 demonstrates antifungal activities against Rhizoctonia solani, S. sclerotiorum and F. graminearum, with EC50 values of 0.0144, 0.882 and 1.99 μg/mL, respectively.
    SDH-IN-37
  • HY-W753375R
    Fluindapyr (Standard)
    		Inhibitor
    Clenbuterol (hydrochloride) (Standard) is the analytical standard of Clenbuterol (hydrochloride). This product is intended for research and analytical applications. Clenbuterol (NAB-365) hydrochloride, a selective β2-adrenergic agonist, enhances skeletal muscle strength and hypertrophy. Clenbuterol hydrochloride induces growth factor mRNA, activates astrocytes, and protects rat brain tissue against ischemic damage.
    Fluindapyr (Standard)
  • HY-178051
    Antifungal agent 135
    		Inhibitor
    Antifungal agent 135 (Compound C2), an antifungal agent, is a Succinate dehydrogenase (SDH) inhibitor with an IC50 of 1.99 μM. Antifungal agent 135 has potent antifungal activities against Valsa mali, Sclerotinia sclerotiorum and Phytophthora capsici with EC50 s of 0.280, 1.11 and 0.130 mg/L, respectively. Antifungal agent 135 shows protective and curative activities against Phytophthora capsici and Valsa mali by effectively disrupting hyphal structural integrity and inhibiting mycelial growth.
    Antifungal agent 135
  • HY-W677714
    SDH-IN-43
    		Inhibitor
    SDH-IN-43 (Compound i-19) is a succinate dehydrogenase (SDH) inhibitor. SDH-IN-43 shows potent inhibitory activity against caenorhabditis elegans wirh an IC50 of 6.67 μM. SDH-IN-43 can significantly reduce caenorhabditis elegans reproductive ability and movement ability, and is also effective against drug-resistant strains of Levamisole (HY-A0106), Benzimidazole (HY-Y1825), and Ivermectin (HY-15310). SDH-IN-43 can be used for the research of parasite infection.
    SDH-IN-43
  • HY-181610
    SDH-IN-45
    		Inhibitor
    SDH-IN-45 is a succinate dehydrogenase BcSDH inhibitor and mycelial growth inhibitor targeting Botrytis cinerea, with an IC50 of 5.97 μg/mL against Botrytis cinerea. SDH-IN-45 inhibits succinate dehydrogenase, a component of the mitochondrial electron transport chain, via a unique binding mode, thereby regulating fungal energy metabolism. SDH-IN-45 causes morphological damage to Botrytis cinerea mycelia, leading to collapse and shrinkage of mycelial structures. SDH-IN-45 exhibits in vitro fungicidal activity against Botrytis cinerea. SDH-IN-45 can be used in research related to cucumber gray mold.
    SDH-IN-45
  • HY-178457
    SDH-IN-34
    		Inhibitor
    SDH-IN-34 is a Succinate Dehydrogenase inhibitor with antifungal activity. SDH-IN-34 can be used for the research of infection.
    SDH-IN-34
  • HY-178050
    SDH-IN-30
    		Inhibitor
    SDH-IN-30 (Compound 7m) is a Succinate dehydrogenase (SDH) inhibitor with an IC50 of 0.34 μM. SDH-IN-30 has potent antifungal activities against Rhizoctonia solani and Sclerotinia sclerotiorum with EC50 s of 0.004 and 0.028 μg/mL. SDH-IN-30 also has remarkable protective and curative efficacies against R. solani and significantly inhibits S. sclerotiorum growth on oilseed rape leaves by damaging the fungal cell structure. SDH-IN-30 can be used for fungal infections like rice sheath blight (RSB) and sclerotinia stem rot (SSR) research.
    SDH-IN-30
Cat. No. Product Name / Synonyms Application Reactivity