Sirtuin Activator

Withanoside IV is an orally active, blood-brain barrier-permeable withanolide derivative. Withanoside IV specifically binds to the Sudlow I site of HSA, induces secondary structural changes in HSA, and forms stable HSA complexes. Withanoside IV inhibits the enzymatic activity of COX-2. Withanoside IV induces axonal regeneration, peripheral nervous system myelination and increased axonal density in spinal cord tissue, reduces reactive gliosis-related changes, and improves hindlimb motor function. Withanoside IV binds to amyloid-β 1-42 to inhibit its aggregation, induces neurite outgrowth and synapse reconstruction, repairs damaged axons and dendrites, enhances mitochondrial biogenesis, exerts neuroprotective effects via the BDNF and SIRT1 signaling pathways, reduces ROS production and neuronal apoptosis, and ameliorates memory deficits. Withanoside IV inhibits the activity of the SARS-CoV-2 main protease. Withanoside IV can be used in research related to spinal cord injury, Alzheimer's disease, and coronavirus disease 2019 (COVID-19).

Fisetin-d5 is a deuterated labeled Fisetin. Fisetin is a natural flavonol found in many fruits and vegetables with various benefits, such as antioxidant, anticancer, neuroprotection effects.

Palmitoyl tetrapeptide-20 (PTP20) TFA is a biomimetic peptide agonist of α-MSH. Palmitoyl tetrapeptide-20 TFA promotes hair pigmentation and delays hair graying by activating the MC1-R pathway (AC₅₀: 0.16 nM), enhancing catalase activity to reduce H₂O₂ accumulation, and upregulating SIRT1 activity. Palmitoyl tetrapeptide-20 TFA can be used in research on preventing hair loss and improving hair graying.

YK-3-237, a SIRT1 activator, targets mutant p53. YK-3-237 inhibits the proliferation of triple-negative breast cancer cells.

SIRT1 activator 2 is a SIRT1 activator with an ED₅₀ value <5 μM. SIRT1 activator 2 modulates SIRT1 deacetylase activity. SIRT1 activator 2 can be used for aging research.

Fisetin quarterhydrate is a natural flavonol found in many fruits and vegetables with various benefits, such as antioxidant, anticancer, neuroprotection effects.

Nicotinamide riboside, an orally active NAD⁺ precursor, increases NAD⁺ levels and activates SIRT1 and SIRT3. Nicotinamide riboside is a source of vitamin B3 (niacin) and enhances oxidative metabolism, protection against high fat diet-induced metabolic abnormalities. Nicotinamide riboside reduces cognitive deterioration in a transgenic mouse model of Alzheimer’s disease.

β-Patchoulene is an orally active anti-inflammatory, antioxidant, and anti-apoptotic agent. β-Patchoulene inhibits the NF-κB, TLR4, and cAMP/PKA/CREB signaling pathways; activates the Sirt1/Nrf2 and AMPK signaling pathways; and targets Fas/FasL, Caspase-3, ERK1/2, ROCK1/MLC2 for inhibition. β-Patchoulene regulates cytokine secretion, inflammatory cell infiltration, lipid peroxidation, cell polarization, gut microbiota, and lipid metabolism, restores barrier function, mitochondrial function, and cell viability, and exhibits repellent activity against Spodoptera exigua larvae. β-Patchoulene can be used in research related to various inflammatory, ischemic, fibrosis-associated diseases, as well as hepatocellular carcinoma.

Gamma-glutamylcysteine (TFA) (Standard) is the analytical standard of Gamma-glutamylcysteine (TFA). This product is intended for research and analytical applications. Gamma-glutamylcysteine TFA (γ-Glu-Cys TFA) is an orally active, blood-brain barrier permeable dipeptide. Gamma-glutamylcysteine TFA activates AMPK, SIRT1, IL-4/STAT6, AC/cAMP/PI3K, IGF-1R/IRS1/PI3K, and Nrf2 signaling pathways; it inhibits NF-κB, JAK1/STAT1/3, MAPKs, cadmium-induced p38 MAPK, JNK, and PI3K/Akt signaling pathways. Gamma-glutamylcysteine TFA regulates macrophage polarization, modulates the trafficking of CD36 and GLUT4, induces glutathione synthesis, improves metabolic dysfunction, reduces lipid deposition, ameliorates glucose homeostasis, inhibits apoptosis (Apoptosis), stabilizes mitochondria, suppresses lipid peroxidation, iron accumulation and ferroptosis (Ferroptosis), reduces ds-HMGB1 levels, reverses mechanical hyperalgesia, and alleviates hepatic lipid droplet formation. Gamma-glutamylcysteine TFA is applicable to research related to inflammatory bowel disease, type 2 diabetes, cadmium-induced neurotoxicity, Alzheimer's disease, cerebral ischemia/reperfusion injury, neuropathy, and alcoholic liver disease.

Ginkgolide C (Standard) is the analytical standard of Ginkgolide C. This product is intended for research and analytical applications. Ginkgolide C is a flavone isolated from Ginkgo biloba leaves, possessing multiple biological functions, such as decreasing platelet aggregation and ameliorating Alzheimer disease.

SRT 1720 (Standard) is the analytical standard of SRT 1720. This product is intended for research and analytical applications. SRT 1720 is a selective activator of human SIRT1 with an EC1.5 of 0.16 μM, and shows less potent activities for SIRT2 and SIRT3 with EC1.5s of 37 μM and > 300 μM, respectively.

(+)-Magnoflorine (α-Magnoflorine) is an orally active aporphine alkaloid with multiple biological activities. (+)-Magnoflorine promotes Parkin/PINK1 -mediated mitochondrial autophagy, inhibits the activation of NLRP3/Caspase-1 pathway, regulates the intestinal microbiota, and exhibits significant anti-inflammatory and immunomodulatory activities. (+)-Magnoflorine inhibits JNK and TLR4/NF-κB signaling pathways, activates Sirt1/AMPK pathway, alleviates neuronal oxidative stress and apoptosis. Magnoflorine upregulates miR-410-3p, inhibits HMGB1/NF-κB pathway, and has anti-tumor activity. (+)-Magnoflorine also has significant antifungal activity.

BML-278 is a SIRT1 activator (EC₁₅₀: 1 μM). BML-278 increases H3K9 methylation and inhibits H3K9 acetylation in both the paternal and maternal pronucleus. BML-278 improves early embryonic development. BML-278 arrests the cell cycle at the G1/S phase, and reduces senescence in primary human mesenchymal cells. BML-278 reduces tubulin acetylation in U937 cells. BML-278 also increases mitochondrial density in murine C2C12 myoblasts.

Mito-Esculetin (Mito-Esc) is an orally active mitochondria-targeted derivative of Esculetin (HY-N0284). Mito-Esculetin inhibits LPS-induced phosphorylation of STAT3 Tyr-705, partially reverses LPS-mediated depletion of SIRT3, and enhances the AMPK-SIRT1 signaling axis. Mito-Esculetin inhibits PAI-1 activity, regulates miRNA, and induces phosphorylation of IRS and AKT. Mito-Esculetin suppresses oxidant-induced endothelial dysfunction, Ang-II (HY-13948)- and high glucose-induced atherosclerotic plaque formation, Palmitate (HY-N0830)-induced insulin resistance, as well as high glucose-mediated endothelial cell senescence and inflammatory responses. Mito-Esculetin reduces body weight and non-esterified fatty acid (NEFA) levels. Mito-Esculetin can be used in research related to acute coronary syndrome, type 2 diabetes, and hyperglycemia-induced atherosclerosis.

Resveratrol-¹³C₆ is the ¹³C-labeled Resveratrol. Resveratrol (trans-Resveratrol; SRT501), a natural polyphenolic phytoalexin that possesses anti-oxidant, anti-inflammatory, cardioprotective, and anti-cancer properties. Resveratrol (SRT 501) has a wide spectrum of targets including mTOR, JAK, β-amyloid, Adenylyl cyclase, IKKβ, DNA polymerase. Resveratrol also is a specific SIRT1 activator. Resveratrol is a potent pregnane X receptor (PXR) inhibitor. Resveratrol is an Nrf2 activator, ameliorates aging-related progressive renal injury in mice model. Resveratrol increases production of NO in endothelial cells.

DCHC is a SIRT1 activator but does not induce SIRT1 expression. DCHC can be used for mitochondrial damage related studies.

SIRT6 activator 2 (compound 31) is a sirtuin 6 activator with anti-lipid accumulation properties. SIRT6 activator 2 significantly downregulates LXR, SREBP-1c, and their target genes associated with lipogenesis, and can be used for research related to lipid metabolism-related diseases.

SIRT6 activator 3 (Compound 24) is a SIRT6 activator with an EC₅₀ of 5 μM. SIRT6 activator 3 exhibits histone deacetylation activity. SIRT6 activator 3 can be used in cancer research.

β-Curcumene is a sesquiterpene compound. β-Curcumene has the potential to act as a SIRT1 activator and a NF-κB inhibitor. β-Curcumene possesses a spicy and ginger-like aroma, and can serve as a raw material for flavors, fragrances and cosmetics. β-Curcumene can be used in the research of type 2 diabetes.

Phoenixin-14 (PNX-14) TFA is an endogenous neuropeptide with multiple biological activities, and serves as the endogenous ligand of GPR173. Phoenixin-14 TFA reduces ROS production by inhibiting the HMGB1/TLR4/MyD88/NF-κB signaling axis, thereby exerting antioxidant and mitochondrial protective effects. Phoenixin-14 TFA inhibits FOXO3 phosphorylation by upregulating SIRT3 expression, suppresses apoptosis, and improves myocardial systolic/diastolic function. Phoenixin-14 TFA resists ferroptosis by activating the ATF4/SLC7A11/GPX4 axis; it activates ERK1/2 phosphorylation via GPR173. Phoenixin-14 TFA can be used in researches on neuroprotection, diabetes, cardiomyopathy, reproductive protection and so on.