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-P1047
    β-Sheet Breaker Peptide iAβ5
    		Degrader 99.92%
    β-Sheet Breaker Peptide iAβ5 is an effective brain amyloid-β (Abeta) degrader. Abeta deposits are associated with Alzheimer's disease (AD), and the related toxicity arises from its β-sheet conformation and aggregation. β-Sheet Breaker Peptide iAβ5 can repeatedly induce the degradation of fibrillary amyloid deposits in vivo. Therefore, β-Sheet Breaker Peptide iAβ5 can prevent and/or reverse neuronal contraction caused by Abeta and reduce the range of interleukin IL-1beta positive microglial-like cells around Abeta deposits. β-Sheet Breaker Peptide iAβ5 can reduce the size and/or number of brain amyloid plaques in AD. β-Sheet Breaker Peptide iAβ5 is labeled with a hydrophobic benzyl alcohol (HBA) tag and shows a bright blue color under acidic conditions, which can be used for quantitative determination.
    β-Sheet Breaker Peptide iAβ5
  • HY-34596
    4-Hydroxyindole
    		Inhibitor 98.06%
    4-Hydroxyindole is a type of hydroxyindole in which the 1H-indole at position 4 is substituted by a hydroxyl group. 4-Hydroxyindole serves as an important raw material or intermediate in the synthesis of pharmaceutical products and industrial polymers. 4-Hydroxyindole inhibits amyloid fibrillization and induces liver function impairment, thyroid abnormalities, and blood glucose fluctuations in mice. 4-Hydroxyindole holds potential for research in neurodegenerative diseases and metabolic disorders.
    4-Hydroxyindole
  • HY-P1466
    β-Amyloid (1-16)
    		99.98%
    β-Amyloid (1-16) is a β-Amyloid protein fragment involved in metal binding. Beta-amyloid is a peptide that forms amyloid plaques in the brains of Alzheimer's disease (AD) patients.
    β-Amyloid (1-16)
  • HY-W011727S
    Pyridoxal Phosphate-d3
    		Inhibitor 98.01%
    Pyridoxal Phosphate-d3 is the deuterium labeled Pyridoxal 5'-phosphate. Pyridoxal 5'-phosphate, 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 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 Phosphate-d<sub>3</sub>
  • HY-B0914A
    10-Undecenoic acid zinc salt
    		Inhibitor ≥98.0%
    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
  • HY-101087
    Benzenesulphonamide
    		Inhibitor 99.51%
    Benzenesulphonamide (Compound 1) is a carbonic anhydrase inhibitor. Benzenesulphonamide exhibits CA II inhibitory activity. Benzenesulphonamide reduces ROS and improves the gene expression of amyloid-β40 and 42. Benzenesulphonamide is beneficial for Alzheimer's disease. Benzenesulphonamide derivatives have anticancer, anti-inflammatory, and anticonvulsant activities. Benzenesulphonamide can be used in the research of Alzheimer's disease, epilepsy, inflammatory diseases, leukemia, melanoma, lung cancer, and colon cancer.
    Benzenesulphonamide
  • HY-N4285
    Negletein
    		Inhibitor 99.55%
    Negletein (5,6-Dihydroxy-7-methoxyflavone) is a flavone found in Scutellaria. Negletein shows anti-inflammatory activity via inhibiting TNF-α and IL-1β with IC50 values of 16.4 and 6.4 μM, respectively. Negletein can activate Nrf2 and inhibit ROS production. Negletein can enhance the neuroprotective effect of nerve growth factor. Negletein can inhibit amyloid beta-peptide release and accumulation. Negletein can inhibit pathogens biofilms formation. Negletein can be used for the researches of cancer, infection, inflammation and neurological disease, such as colon cancer and Alzheimer's disease.
    Negletein
  • HY-P1362F
    Cy5-β-Amyloid (42-1), human Tris
    		98.14%
    Cy5-β-Amyloid (42-1), human is a Cy5 fluorescently-labelled β-Amyloid (42-1, human) peptide (λex= 633 nm and λem= 670 nm).
    Cy5-β-Amyloid (42-1), human Tris
  • HY-N2580
    Zinc Phytate
    		Inhibitor 98.20%
    Zinc Phytate (myo-Inositol; hexakis dihydrogen phosphate; Inositol hexaphosphate) is an orally active compound. Zinc Phytate can be derived from the seeds of legumes. Zinc Phytate is a [PO4]3- storage depot and precursor for other inositol phosphates and pyrophosphates. Zinc Phytate attenuates Aβ oligomers and upregulates autophagy protein. Zinc Phytate can be used in cardiovascular disease, metabolic disease, nervous system disease and cancer research.
    Zinc Phytate
  • HY-103374
    Phenserine
    		Inhibitor ≥98.0%
    Phenserine ((-)-Eseroline phenylcarbamate) is a derivative of Physostigmine and is a potent, noncompetitive, long-acting and selective AChE inhibitor. Phenserine reduces β-amyloid precursor protein (APP) and β-amyloid peptide (Aβ) formation. Phenserine improves cognitive performance and attenuates the progression of Alzheimer's disease.
    Phenserine
  • HY-W010041
    Scyllo-Inositol
    		Inhibitor ≥98.0%
    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
  • HY-162566
    REM127
    		Inhibitor 98.0%
    REM127 is a small molecule compound capable of modulating calcium homeostasis in cells and possesses neuroprotective effects. REM127 can restore the calcium homeostasis imbalance in cellular models caused by pathological accumulation of tau protein. REM127 can efficiently cross the blood-brain barrier, and it has the potential to rescue synaptic and cognitive deficits in Alzheimer's disease animal models, as well as to slow down the progression of amyloid-beta and tau protein pathologies. REM127 can be used for research in neurodegenerative diseases.
    REM127
  • HY-P10294
    Oligopeptide P11-4
    		98.02%
    Oligopeptide P11-4 is an α-peptide that can be self-assembled into β-sheet amyloids with a hydrogel appearance at low pH. Oligopeptide P11-4 can be used in biomimetic mineralization, enamel regeneration and oral care agent.
    Oligopeptide P11-4
  • HY-148495
    Carnosine conjugated hyalyronate
    		Inhibitor
    Carnosine conjugated hyalyronate is a hyaluronic acid derivative functionalized with the dipeptide carnosine (Carnosine, Car) and has the ability to resist Aβ amyloid aggregation. Carnosine conjugated hyalyronate dissolves amyloid fibrils and reduces Aβ-induced toxicity in vitro. The effectiveness of Carnosine conjugated hyalyronate against amyloid aggregation is directly proportional to the Carnosine loading.
    Carnosine conjugated hyalyronate
  • HY-111911
    Xanthocillin X permethyl ether
    		Inhibitor 98.91%
    Xanthocillin X permethyl ether is a natural compound isolated from fungal extracts, with Aβ-42 lowering activity.
    Xanthocillin X permethyl ether
  • HY-W014589R
    2,4-Di-tert-butylphenol (Standard)
    		Inhibitor
    2,4-Di-tert-butylphenol (Standard) is the analytical standard of 2,4-Di-tert-butylphenol (HY-W014589). This product is intended for research and analytical applications. 2,4-Di-tert-butylphenol (2,4-DTBP) is an orally active RXRα activator and a human estrogen receptor ligand with anti-inflammatory and antioxidant activities, which can induce apoptosis in tumor cells. 2,4-Di-tert-butylphenol can activate the RXRα subtype in LXRα/RXRα, PPARγ/RXRα, and hormone receptor β/RXRα. 2,4-Di-tert-butylphenol also has antiviral and antifungal activities, and has the potential to inhibit Aβ-induced neurotoxicity. 2,4-Di-tert-butylphenol can be used as an intermediate in the preparation of antioxidants and UV stabilizers, and is also used in the manufacture of pharmaceuticals and fragrances.
    2,4-Di-tert-butylphenol (Standard)
  • HY-16632
    ELND 006
    		Inhibitor 99.7%
    ELND 006 (Compound 30) is a metabolically stable γ-secretase inhibitor designed to selectively inhibit amyloid beta (Aβ) generation while sparing Notch signaling. It was developed through a synthetic strategy emphasizing diversity and chirality. ELND 006, along with its analog ELND007 (Compound 34), progressed into human clinical trials. In preclinical studies, both compounds demonstrated effective reduction of Aβ levels in vitro and in vivo. Comparisons with other γ-secretase inhibitors like Semagacestat, Begacestat, and Avagacestat underscored their potency and specificity in lowering Aβ levels in cerebrospinal fluid (CSF) of healthy human volunteers, suggesting potential therapeutic efficacy in Alzheimer's disease.
    ELND 006
  • HY-D1443
    BSB
    BSB is a Congo red-derived fluorescent probe. BSB binds not only to extracellular amyloid β protein, but also many intracellular lesions composed of abnormal tau and synuclein proteins. BSB acts as a prototype imaging agent for Alzheimer's disease.
    BSB
  • HY-W111226
    Fmoc-His(3-Me)-OH
    		Inhibitor ≥98.0%
    Fmoc-His(3-Me)OH derives Histidine-associating compounds with biological activity. Fmoc-His(3-Me)OH, with Fmoc-citrulline-OH, Fmoc-His(1-Me)-OH together, forms tri-peptides and shows vasodilating effect with EC50s of 2.7-4.7 mM in 1.0 mM Phenylephrine (PE)-contracted aorta rings. Fmoc-His(3-Me)OH (resin) also makes Methyl-His-Gly-Lys (His(3-Me)-Gly-Lys), thus acts as an [Ca2+]i inhibitor. Fmoc-His(3-Me)OH methylates NAHIS02, making it unable to block the Alzheimer's Aβ channel.
    Fmoc-His(3-Me)-OH
  • HY-162043
    CKR-49-17
    		Degrader 98.40%
    CKR-49-17 is an activator of CK1γ2. CKR-49-17 decreases C99 and β-amyloid levels. CKR-49-17 can be used in the research of Alzheimer's disease (AD).
    CKR-49-17
Cat. No. Product Name / Synonyms Application Reactivity