2. Signaling Pathways
  3. Neuronal Signaling
  4. Amyloid-β

Amyloid-β

β-amyloid peptide; Aβ; Abeta

Amyloid-β

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Amyloid-β (Aβ) denotes peptides of 36–43 amino acids that are crucially involved in Alzheimer's disease as the main component of theamyloid plaques found in the brains of Alzheimer patients. The peptides result from the amyloid precursor protein (APP), which is being cut by certain enzymes to yield Aβ. Amyloid-β molecules can aggregate to form flexible soluble oligomers which may exist in several forms. Amyloid-β peptide is due to overproduction of Aβ and/or the failure of clearance mechanisms. Amyloid-β self-aggregates into oligomers, which can be of various sizes, and forms diffuse and neuritic plaques in the parenchyma and blood vessels. Amyloid-β oligomers and plaques are potent synaptotoxins, block proteasome function, inhibit mitochondrial activity, alter intracellular Ca2+levels and stimulate inflammatory processes. Loss of the normal physiological functions of Aβ is also thought to contribute to neuronal dysfunction.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-126194
    Tolcapone 3-β-D-glucuronide
    		Inhibitor
    Tolcapone 3-β-D-glucuronide (Ro 61-1448) is an O-methyl metabolite of Tolcapone (HY-17406) and is pharmacologically inactive. Tolcapone (Ro 40-7592) is a selective, potent and orally active COMT inhibitor with an IC50of 773 nM. Tolcapone can inhibits α-syn and Aβ42 oligomerization and fibrillogenesis. Tolcapone can cause oxidative stress and induce cancer cells apoptosis and ROS production. Tolcapone can be used for the researches of cancer and neurological disease, such as Parkinson disease and neuroblastoma.
    Tolcapone 3-β-D-glucuronide
  • HY-105066R
    Davunetide (Standard)
    		Inhibitor
    Davunetide (Standard) is the analytical standard of Davunetide (HY-105066). This product is intended for research and analytical applications. Davunetide is an eight amino acid snippet derived from activity-dependent neuroprotective protein (ADNP), a neurotrophic factor that exists in the mammalian CNS. Davunetide possesses neuroprotective, neurotrophic and cognitive protective roperties. Davunetide, a microtubule-stabilizing peptide, interacts with and stabilises neuron-specific βIII-tubulin in vitro. Davunetide penetrates the blood-brain barrier and is non-toxic. Davunetide inhibits Aβ aggregation and Aβ-induced neurotoxicity.
    Davunetide (Standard)
  • HY-103442R
    CGP52411 (Standard)
    		Inhibitor
    CGP52411 (Standard) is the analytical standard of CGP52411 (HY-103442). This product is intended for research and analytical applications. CGP52411 (DAPH) is a high selective, potent, orally active and ATP-competitive EGFR inhibitor with an IC50 of 0.3 μM. CGP52411 blocks the toxic influx of Ca2+ ions into neuronal cells, and dramatic inhibits and reverses the formation of β-amyloid (Aβ42) fibril aggregates associated with Alzheimer's disease.
    CGP52411 (Standard)
  • HY-100642R
    3-O-Methyltolcapone (Standard)
    		Inhibitor
    3-O-Methyltolcapone (Standard) (Ro 40-7591 (Standard)) is the analytical standard of 3-O-Methyltolcapone (HY-174062). 3-O-Methyltolcapone (Ro 40-7591) is a metabolite of Tolcapone (HY-17406). Tolcapone (Ro 40-7592) is a selective, potent and orally active COMT inhibitor with an IC50of 773 nM. Tolcapone can inhibits α-syn and Aβ42 oligomerization and fibrillogenesis. Tolcapone can cause oxidative stress and induce cancer cells apoptosis and ROS production. Tolcapone can be used for the researches of cancer and neurological disease, such as Parkinson disease and neuroblastoma.
    3-O-Methyltolcapone (Standard)
  • HY-N0442R
    5-O-Methylvisammioside (Standard)
    		Inhibitor
    5-O-Methylvisammioside (4'-O-β-D-Glucosyl-5-O-methylvisamminol) (Standard) is the analytical standard of 5-O-Methylvisammioside. This product is intended for research and analytical applications. 5-O-Methylvisammioside is an orally active natural chromone glycoside and multiple biological activities. 5-O-Methylvisammioside inhibits ferroptosis by activating the Nrf2/HO-1 signaling axis. 5-O-Methylvisammioside alleviates intestinal barrier damage by inhibiting the ROS/NF-κB/NLRP3 pathway. 5-O-Methylvisammioside exerts a protective effect against acute liver injury by reducing ALT/AST, decreasing inflammatory infiltration, and inhibiting IκB-α phosphorylation and NF-κB nuclear translocation. 5-O-Methylvisammioside blocks the HMGB1/RAGE/MEK/ERK signaling axis to exert anti-tumor and anti-angiogenic effects. 5-O-Methylvisammioside improves depression-like behaviors by inhibiting Src kinase and the NF-κB pathway.
    5-O-Methylvisammioside (Standard)
  • HY-103241R
    Ro 90-7501 (Standard)
    		Inhibitor
    Ro 90-7501 (Standard) is the analytical standard of Ro 90-7501 (HY-103241). This product is intended for research and analytical applications. Ro 90-7501 is an amyloid β42 (Aβ42) fibril assembly inhibitor that reduces Aβ42-induced cytotoxicity (EC50 of 2 μM). Ro 90-7501 inhibits ATM phosphorylation and DNA repair. RO 90-7501 selectively enhances toll-like receptor 3 (TLR3) and RIG-I-like receptor (RLR) ligand-induced IFN-β gene expression and antiviral response. Ro 90-7501 also inhibits protein phosphatase 5 (PP5) in a TPR-dependent manner. Ro 90-7501 has significant radiosensitizing effects on cervical cancer cells.
    Ro 90-7501 (Standard)
  • HY-B0104S3
    Glimepiride-d4-2
    		Inhibitor
    Glimepiride-d4-2 (GliAmperide-d4-2) is deuterium labeled Glimepiride. Glimepiride (Glimperide) is a medium-to-long acting sulfonylurea anti-diabetic compound with an ED50 of 182 μg/kg.
    Glimepiride-d<sub>4</sub>-2
  • HY-100642
    3-O-Methyltolcapone
    		Inhibitor 99.95%
    3-O-Methyltolcapone (Ro 40-7591) is a metabolite of Tolcapone (HY-17406). Tolcapone (Ro 40-7592) is a selective, potent and orally active COMT inhibitor with an IC50of 773 nM. Tolcapone can inhibits α-syn and Aβ42 oligomerization and fibrillogenesis. Tolcapone can cause oxidative stress and induce cancer cells apoptosis and ROS production. Tolcapone can be used for the researches of cancer and neurological disease, such as Parkinson disease and neuroblastoma.
    3-O-Methyltolcapone
  • HY-W011727R
    Pyridoxal 5'-phosphate hydrate (Standard)
    		Inhibitor
    Pyridoxal 5'-phosphate (hydrate) (Standard) is the analytical standard of Pyridoxal 5'-phosphate (hydrate) (HY-W011727). This product is intended for research and analytical applications. Pyridoxal 5'-phosphate hydrate, the active form of vitamin B6, is an essential cofactor for multiple enzymes, including aromatic l-amino acid decarboxylase that catalyzes the final stage in the production of the neurotransmitters dopamine and serotonin. Pyridoxal 5'-phosphate hydrate is the most important coenzyme variant in the process of vitamin B6 intracellular phosphorylation and is interconvertible with other variants, including pyridoxine 5′‐phosphate (PNP) and pyridoxamine 5′-phosphate (PMP).
    Pyridoxal 5'-phosphate hydrate (Standard)
  • HY-N0615R
    Notoginsenoside R1 (Standard)
    		Inhibitor
    Notoginsenoside R1 (Standard) is the analytical standard of Notoginsenoside R1. This product is intended for research and analytical applications. Notoginsenoside R1 (Sanchinoside R1), a saponin, is isolated from P. notoginseng. Notoginsenoside R1 exhibits anti-oxidation, anti-inflammatory, anti-angiogenic, and anti-apoptosis activities. Notoginsenoside R1 provides cardioprotection against ischemia/reperfusion (I/R) injury. Notoginsenoside R1 also provides neuroprotection in H2O2-induced oxidative damage in PC12 cells.
    Notoginsenoside R1 (Standard)
  • HY-101855R
    Emrusolmin (Standard)
    		Inhibitor
    Emrusolmin (Standard) (Anle138b (Standard)) is the analytical standard of Emrusolmin (HY-101855). This product is intended for research and analytical applications. Emrusolmin (Anle138b), an oligomeric aggregation inhibitor, blocks the formation of pathological aggregates of prion protein (PrPSc) and of α-synuclein (α-syn). Emrusolmin strongly inhibits oligomer accumulation, neuronal degeneration, and disease progression in vivo. Emrusolmin has low toxicity and an excellent oral bioavailability and blood-brain-barrier penetration. Emrusolmin blocks Aβ channels and rescues disease phenotypes in a mouse model for amyloid pathology.
    Emrusolmin (Standard)
  • HY-B0914AR
    10-Undecenoic acid zinc salt (Standard)
    		Inhibitor
    10-Undecenoic acid (zinc salt) (Standard) is the analytical standard of 10-Undecenoic acid (zinc salt). This product is intended for research and analytical applications. 10-Undecenoic acid zinc salt (Undecylenic acid zinc salt) is an antifungal agent. 10-Undecenoic acid zinc salt inhibits Aβ oligomerization, scavenges ROS and inhibits μ-calpain activity. 10-Undecenoic acid zinc salt has neuroprotective effects. 10-Undecenoic acid zinc salt has anticancer effects on a variety of tumors. 10-Undecenoic acid zinc salt inhibits C. albicans biofilm formation and MRSA infection. 10-Undecenoic acid zinc salt inhibits quorum sensing signals of Bacillus subtilis and Pseudomonas aeruginosa.
    10-Undecenoic acid zinc salt (Standard)
  • HY-50682A
    Azeliragon dihydrochloride
    		Inhibitor
    Azeliragon dihydrochloride (TTP488) is an orally bioavailable inhibitor of the receptor for advanced glycation end products (RAGE) in development as a potential treatment to slow disease progression with mild Alzheimer’s disease (AD). Azeliragon dihydrochloride also can cross the blood-brain barrier (BBB).
    Azeliragon dihydrochloride
  • HY-101861R
    Miridesap (Standard)
    		Inhibitor
    Miridesap (Standard) is the analytical standard of Miridesap (HY-101861). This product is intended for research and analytical applications. Miridesap is a ligand for serum amyloid P component (SAP) and intends to inhibit and dissociate SAP binding to amyloid fibrils and tangles.
    Miridesap (Standard)
  • HY-N12360
    2,3-Dehydrosilybin A
    		Inhibitor
    2,3-Dehydrosilybin A is a pro-longevity and anti-aggregation compound.
    2,3-Dehydrosilybin A
  • HY-N2014R
    Verbenalin (Standard)
    		Inhibitor
    Verbenalin (Standard) is the analytical standard of Verbenalin. This product is intended for research and analytical applications. Verbenalin is an orally active terpenoid glycoside that can be extracted from the medicinal plant Verbena officinalis. Verbenalin has anti-inflammatory, antiviral, and neuroprotective effects. Verbenalin has a strong binding affinity to the nsp-12 protein of the SARS-CoV-2 virus. Verbenalin can be used in the research of inflammatory and nervous system diseases such as hepatitis and Alzheimer's disease.
    Verbenalin (Standard)
  • HY-10009R
    Semagacestat (Standard)
    		Inhibitor
    Semagacestat (Standard) is the analytical standard of Semagacestat. This product is intended for research and analytical applications. Semagacestat is a γ-secretase inhibitor, inhibits β-amyloid (Aβ42), Aβ38 and Aβ40 with IC50s of 10.9, 12 and 12.1 nM, respectively; also inhibits Notch signaling with IC50 of 14.1 nM. Semagacestat can be used for the research of alzheimer's?disease.
    Semagacestat (Standard)
  • HY-W010041R
    Scyllo-Inositol (Standard)
    		Inhibitor
    Scyllo-Inositol is an inhibitor that targets the aggregation of misfolded proteins (such as α-synuclein and Amyloid-β), is orally effective, and can cross the blood-brain barrier. Scyllo-Inositol can selectively bind to and stabilize non-toxic oligomers, preventing them from converting into toxic fibers, exerting protein homeostasis regulation and neuroprotective activity. Scyllo-Inositol binds to the hydrophobic region of pathogenic proteins, inhibits protein aggregation, and promotes lysosome- and proteasome-mediated degradation pathways, thereby reducing neurotoxicity. Scyllo-Inositol can be used in the study of neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, and Huntington's disease.
    Scyllo-Inositol (Standard)
  • HY-112282
    BI-1408
    		Inhibitor
    BI-1408 is a potent γ secretase modulator with an IC50 of 0.04 μM for Aβ42.
    BI-1408
  • HY-D0214E
    Acid Red 94 sodium (80%)
    		Inhibitor
    Acid Red 94 sodium (80%), a synthetic fluorescein derivative, is a deep red dye primarily composed of 4,5,6,7-tetrachloro-2,4,5,7-tetraiodo fluorescein. Acid Red 94 sodium (80%) is widely used as an ophthalmic diagnostic agent to detect dry or damaged cells on the ocular surface. Acid Red 94 sodium (80%) exhibits antitumor activity and can inhibit Friend Leukemia Virus (FLV) infection through photodynamic action. Additionally, Acid Red 94 sodium (80%) can inhibit Aβ aggregation through light irradiation. Acid Red 94 sodium (80%) holds potential for use in cancer, viral infections, and neurodegenerative disease research.
    Acid Red 94 sodium (80%)
Cat. No. Product Name / Synonyms Application Reactivity