389 Results for "

Structure activity

" in MedChemExpress (MCE) Product Catalog:
Products (389)

389 Results for "Structure activity" in MCE Product Catalog:

Cat. No.: HY-105284R
CAS No.: 120788-07-0
Synonyms: CP-70429 (Standard)
N-Acetylneuraminic acid (Standard) is the analytical standard of N-Acetylneuraminic acid. This product is intended for research and analytical applications. N-Acetylneuraminic acid (NANA; Lactaminic acid), a nonphenolic structure, is the predominant form of sialic from Collocalia esculenta. N-Acetylneuraminic acid plays a biological role in myocardial injury, melanoma and viral or bacterial infection. N-Acetylneuraminic acid inhibits melanogenesis by reducing tyrosinase activity and triggers myocardial injury in vitro and in vivo by activation of the Rho/Rho-associated signaling pathway through binding to RhoA and Cdc42. N-Acetylneuraminic acid may prevent high fat diet (HFD)-induced inflammation and oxidative stress, thereby prevents hyperlipidemia-associated inflammation and oxidative stress. N-Acetylneuraminic acid is promising for research in the field of melanoma, coronary artery, obesity-related diseases and hyperlipidemia .
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Cat. No.: HY-107833
CAS No.: 102961-72-8
Purity:  92.38%
Target:  

Antibiotic Bacterial

Research Areas:  

Infection

A40926 is a glycopeptide antibiotic that targets the bacterial cell wall peptidoglycan precursor D-alanyl-D-alanine (D-Ala-D-Ala). A40926 irreversibly inhibits cell wall synthesis by competitively binding to this target, and has high bactericidal activity against Gram-positive bacteria (such as Staphylococcus, Streptococcus) and Neisseria gonorrhoeae, with MIC=0.06-2 μg/mL, and is also effective against penicillin-resistant strains. A40926 blocks peptidoglycan cross-linking, destroys cell wall integrity, and causes bacterial lysis and death. A40926 has a fat-soluble fatty acid structure, which can increase serum concentrations and prolong the duration of action (e.g., the terminal half-life in rats is 61.22 h) .
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Cat. No.: HY-112749B
CAS No.: 1374524-84-1
(3S,4R)-ME-344 is the (3S,4R)-enantiomer of ME-344 (HY-112749). ME-344 is a mitochondrial Heme oxygenase 1 (HO-1) inhibitor. ME-344 specifically binds and alters HO-1 structure, and increases HO-1 translocation from the rough endoplasmic reticulum to mitochondria, but only in drug-sensitive cells (such as H460 and SHP-77 cells). ME-344 decreases mitochondrial ATP production and induces ROS, with subsequent disruption of redox homeostasis and mitochondrial function. ME-344 has significant antitumor activity, and can be used for cancers like breast cancer research .
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Cat. No.: HY-12455
CAS No.: 118292-34-5
Duocarmycin A is an antitumor antibiotic and DNA alkylating agent with broad-spectrum antibacterial activity, which can serve as a payload for synthesizing antibody-drug conjugates (ADCs). Duocarmycin A selectively binds to the AT-rich minor groove of DNA, forms covalent adducts by alkylating the adenine N3 residue, thereby disrupting DNA structure and inhibiting its replication and transcription. Duocarmycin A induces apoptosis, sub-G1 phase accumulation and chromatin condensation, reduces the levels of pro-caspase-3/9, and induces p53-independent p21 expression. Duocarmycin A is widely used in the research of various malignancies, including leukemia, sarcoma, glioblastoma, as well as multiple solid tumor models such as lung cancer, breast cancer, and colorectal cancer .
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Cat. No.: HY-124609
CAS No.: 2071209-49-7
Purity:  99.39%
Research Areas:  

Neurological Disease

CAD031 is an orally active AMPK/ACC1 signaling pathway activator and a derivative of the Alzheimer's disease (AD) targeted agent J147 (HY-13779) (more active than J147 in human neural stem cell assays). CAD031 can cross the blood-brain barrier, activate AMPK and inhibit ACC1, thereby increasing ac-CoA levels, improving mitochondrial function and reducing free fatty acid synthesis. CAD031 has neuroprotective, neurogenesis-promoting and memory-improving activities and can be used in the study of Alzheimer's disease and aging-related neurodegenerative diseases. CAD031 effectively enhances the memory of mice, improves dendritic structure, and stimulates cell division in the germinal zone of the brain of elderly mice .
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Cat. No.: HY-156675
CAS No.: 2119725-22-1
Plecstatin‑1 is a metal complex that drives the aggregation and collapse of the plectin network, and disrupts the cytoskeletal structures of α‑tubulin and F‑actin. Plecstatin-1 triggers oxidative stress, mediates the phosphorylation of eIF2α, and induces molecular features associated with immunogenic cell death, including calreticulin membrane exposure, membrane localization of HSP70/HSP90, ATP secretion, and HMGB‑1 release. Plecstatin-1 induces apoptosis via the intrinsic mitochondrial pathway and exerts anti-invasive activity. Plecstatin‑1 inhibits sphere proliferation and reduces clonogenicity in the 3D tumor spheroid model of colon cancer cells. Plecstatin-1 is applicable to relevant research on colorectal cancer .
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Cat. No.: HY-173331
Research Areas:  

Cancer

Antitumor agent-201 (Compound 10) is a chloride transport activator that targets the Golgi apparatus. Its EC50 for promoting the transmembrane transport of chloride ions is 1.53 mol%, and its IC50 against HepG2 cells is 7.13 μM. Antitumor agent-201 exerts its anti-cancer activity by selectively acting on the Golgi apparatus, disrupting the chloride ion homeostasis within it, reducing the expression of key proteins such as GM130 and GRASP55, altering the structure and function of the Golgi apparatus, triggering Autophagy of the Golgi apparatus, and further inducing Apoptosis of cancer cells and arresting cancer cells in the G2/M phase. Antitumor agent-201 can be used in the research field of cancer diseases .
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Cat. No.: HY-184980
CAS No.: 2180967-88-6
Target:  

Urease Fungal

Research Areas:  

Infection

Urease-IN-23 is a cryptococcal urease inhibitor with antifungal activity. AF55 exhibits mixed-type inhibition against cryptococcal urease, binds to both the nickel ion site at the enzyme's catalytic center and the allosteric site, impairs urease catalytic efficiency, simultaneously disrupts fungal virulence structures and damages cell membrane integrity. The IC50 and Ki values of Urease-IN-23 against cryptococcal urease are 54.92 nM and 149.1 nM, respectively. Urease-IN-23 significantly reduces the capsule thickness of Cryptococcus neoformans and Cryptococcus gattii, increases fungal cell membrane permeability, and completely blocks melanin synthesis. Urease-IN-23 shows no toxicity in the Galleria mellonella larval model. Urease-IN-23 can be used in studies related to fungal infections .
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Cat. No.: HY-D1056B4
Synonyms: LPS, from bacterial (Salmonella typhosa)
Lipopolysaccharides, from Salmonella typhosa are lipopolysaccharide endotoxins and TLR-4 activators derived from Salmonella typhosa, classified as S-type LPS, which can activate pathogen-associated molecular patterns (PAMP) of the immune system and induce cellular secretion of migrasomes. Lipopolysaccharides, from Salmonella typhosa exhibit a typical three-part structure: O-antigen, core oligosaccharide, and lipid A. Lipopolysaccharides, from Salmonella typhosa can serve as vaccine adjuvants and demonstrate adjuvant activity targeting B cells in immune responses in vivo .
It is recommended to prepare a solution with concentration ≥2 mg/mL. Vortex thoroughly for more than 10 minutes. Due to the adsorption characteristics of LPS, silanized container or low adsorption centrifuge tubes should be used for aliquoting and storage, and mix thoroughly before use.
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Cat. No.: HY-I0400R
CAS No.: 131-48-6
Synonyms: NANA (Standard); Lactaminic acid (Standard)
N-Acetylneuraminic acid (Standard) is the analytical standard of N-Acetylneuraminic acid. This product is intended for research and analytical applications. N-Acetylneuraminic acid (NANA; Lactaminic acid), a nonphenolic structure, is the predominant form of sialic from Collocalia esculenta. N-Acetylneuraminic acid plays a biological role in myocardial injury, melanoma and viral or bacterial infection. N-Acetylneuraminic acid inhibits melanogenesis by reducing tyrosinase activity and triggers myocardial injury in vitro and in vivo by activation of the Rho/Rho-associated signaling pathway through binding to RhoA and Cdc42. N-Acetylneuraminic acid may prevent high fat diet (HFD)-induced inflammation and oxidative stress, thereby prevents hyperlipidemia-associated inflammation and oxidative stress. N-Acetylneuraminic acid is promising for research in the field of melanoma, coronary artery, obesity-related diseases and hyperlipidemia .
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Cat. No.: HY-N7101R
CAS No.: 87239-81-4
Synonyms: U-76,252 (Standard); CS-807 (Standard)
Cefpodoxime Proxetil (Standard) is the analytical standard of Cefpodoxime Proxetil. This product is intended for research and analytical applications. Cefpodoxime Proxetil is an orally active broad spectrum third-generation cephalosporin with potent antibacterial activity against both Gram-positive and Gram-negative bacteria including staphylococci, streptococci, Haemophilus influenzae, Neisseria gonorrhoeae, Escherichia coli, Klebsiella pnuemoniae, Citrobacter spp, and Proteus spp. Cefpodoxime Proxetil binds to penicillin binding proteins (PBPs), which inhibits peptidoglycan synthesis, finally results in interfering bacterial cell wall biosynthesis. Cefpodoxime Proxetil can be used against skin structure infections, acute otitis media, pharyngitis, tonsillitis, upper respiratory tract infection, urinary tract infections and sexually transmitted diseases .
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Cat. No.: HY-W251143
CAS No.: 83054-80-2
N,N′-Bis(2,5-di-tert-butylphenyl)-3,4,9,10-perylenedicarboximide is an organic semiconductor material with excellent electron transport activity. N,N′-Bis(2,5-di-tert-butylphenyl)-3,4,9,10-perylenedicarboximide is widely used in organic field effect transistors (OFETs) and organic photovoltaic (OPV) devices due to its high carrier mobility. The chemical structure design of N,N′-Bis(2,5-di-tert-butylphenyl)-3,4,9,10-perylenedicarboximide enables it to perform well in light absorption and photoelectric conversion, thereby improving the efficiency of organic photoelectric devices.
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Cat. No.: HY-112624E
CAS No.: 9004-54-0
Synonyms: Dextran 0.8; Dextran D0.8; Dextran T0.8(MW 640-960)
Dextran T0.8 (Dextran 0.8; Dextran T0.8(MW 640-960)) is a food additive with a porous network structure that exhibits strong hydration capacity and low browning activity. Dextran T0.8 (MW 800) can improve the coagulation of dairy products and is used as a prebiotic in baked goods. Dextran T0.8 (MW 800) is non-toxic to HeLa cells at a concentration of ~500 μg/mL and has a low relative browning rate in the Maillard reaction. The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong the half-life of drugs, increase local concentrations, and reduce the activity of immune clearance .
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Cat. No.: HY-118773R
CAS No.: 22816-60-0
Synonyms: A22 hydrochloride (Standard)
Research Areas:  

Infection

MreB Perturbing Compound A22 hydrochloride (Standard) is the analytical standard for MreB Perturbing Compound A22 hydrochloride (HY-118773). This product is intended for research and analytical applications. MreB Perturbing Compound A22 hydrochloride (A22 hydrochloride) is a reversible MreB inhibitor and antimicrobial agent that exhibits bacteriostatic activity against Escherichia coli, with low activity against Gram-positive bacteria. MreB Perturbing Compound A22 hydrochloride rapidly and reversally delocalizes MreB from the helical/circular structures in cells, impairs MreB function, and reduces the binding of MreB to the chromosomal region proximal to the replication origin. MreB Perturbing Compound A22 hydrochloride alters the cell morphology of caulobacters to round/lemon-shaped, slows caulobacter growth, blocks their cell division, and induces the formation of spherical morphology, asymmetric division, and anucleate cells in Escherichia coli. MreB Perturbing Compound A22 hydrochloride is used for studies related to bacterial rod-shaped morphology determination, chromosome segregation, and cell division mechanisms .
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Cat. No.: HY-137566
CAS No.: 116524-58-4
Cucumarioside H is a novel triterpene glycoside isolated from the Far Eastern sea cucumber Eupentacta fraudatrix, including H2, H3 and H4. These glycosides have a branched pentasyl structure with a rare 3-O-methyl-D-xylose as the terminal monosaccharide. H2 contains 23,24,25,26,27-pentanolone sterols and has an 18(16)-lactone, which is not common in sea cucumbers. The glycoside portion of H3 contains an extremely rare ethoxyl radical at the 25 position, which may be an artifact formed during the long ethanol extraction process. Studies have shown that H1-3 are cytotoxic to mouse spleen lymphocytes, hemolytic to mouse erythrocytes, and cytotoxic to Ehrlich carcinoma cells. The presence of a 25-hydroxyl group in the glycoside portion significantly reduces these activities.
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Cat. No.: HY-P1764
CAS No.: 149146-12-3
Secretoneurin, rat is a 33-amino acid neuropeptide produced by proteolytic processing of chromogranin II, widely distributed in the central and peripheral nervous systems, and its release is calcium-dependent. Secretoneurin, rat modulates the activities of caspase-3, caspase-1, the NLRP3 inflammasome, IGF-1R, VEGFR1, VEGFR2, FGFR3, AMPK, ERK1/2/MAPK, and Jak2/Stat3 pathways. Secretoneurin, rat regulates neuronal apoptosis, synaptic structure, inflammation, neurogenesis, angiogenesis, oxidative stress, cardiomyocyte hypertrophy, dopamine release, and cell migration and proliferation. Secretoneurin, rat is used in studies of global cerebral ischemia, myocardial infarction, stroke, and cardiac hypertrophy .
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Cat. No.: HY-W115721
CAS No.: 523-21-7
Synonyms: Sodium rhodizonate dibasic
Rhodizonic acid disodium (Sodium rhodizonate dibasic) is a transition metal-dependent pro-oxidant and lead detection agent that induces reactive oxygen species generation, DNA damage, and inhibits Aconitase activity. Rhodizonic acid disodium generates superoxide anion radicals in an iron (II)-dependent manner, leading to aconitase inactivation. Rhodizonic acid disodium also triggers hydroxyl radical-mediated DNA strand breaks and 8-OHdG formation via copper ion reduction. Rhodizonic acid disodium reacts with lead to form a scarlet precipitate, with the color intensity proportional to lead content, enabling qualitative or quantitative analysis of lead. Rhodizonic acid disodium can also be used for real-time visualization of the dynamic process of lead sequestration in the plant rhizosphere and evaluation of the effects of environmental factors such as soil type on the stability of lead-sequestering structures .
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Cat. No.: HY-LD002
100 billion compounds

The discovery of hit molecule is a cornerstone of drug development. Among the diverse tools available, DNA-encoded libraries have emerged a revolutionary platform for high-throughput screening. Compared with traditional HTS, DEL features shorter screening processes, lower costs, simpler assays, and larger library capacities.

DEL Construction utilizes split-and-pool synthesis, a combinatorial chemistry approach that involves iterative splitting, reaction, and pooling. This strategy enables rapid, exponential assembly of fragments in minimal steps without the need for individual compound synthesis andassoicicated isolation or purification steps, thus greatly reducing overall costs. The technology enables simultaneous affinity screeningof massive compound collections to target proteins in a single step. By coupling chemical structures with unique DNA barcodes, each compound is tagged with a distinct DNA sequence for convenient tracking and decoding.DELs readily enable the construction and efficient screening of libraries containing millions to billions of compounds. As a result, DEL screening combines the dual advantages of high efficiency and low cost, making DEL a transformative technology in modern drug discovery.

The DEL kit consists of 50 independent libraries with a total scale of 100 billion compounds. It is constructed through stepwise combinatorial chemistry strategies involving 2-, 3-, and 4-round synthesis. By employing diverse scaffolds and flexible linking strategies, it encompasses various ring systems, linear frameworks, and heterocyclic structures. Screening can be achieved solely through affinity, independent of target-specific activity detection methods. This library is suitable for DEL screening against a wide range of targets.

Cat. No.: HY-128483
CAS No.: 536-69-6
Purity:  99.94%
Fusaric acid is an orally active multi-pathway inhibitor with the activity of inducing oxidative stress and apoptosis. Fusaric acid can chelate divalent metal cations, damage mitochondrial membrane structure, and activate apoptosis-related proteases such as Caspase-3/7, -8, and -9. Fusaric acid also regulates Bax/Bcl-2 protein, inhibits fibrosis-related signaling pathways such as NF-κB, TGF-β1/SMADs, and PI3K/AKT/mTOR, and reduces collagen deposition. Fusaric acid is also a dopamine β-hydroxylase inhibitor, which reduces endogenous levels of norepinephrine and epinephrine in the brain, heart, spleen, and adrenal glands. Fusaric acid can play a role in myocardial fibrosis and improve cardiac hypertrophy in heart disease, and can also be used in the study of esophageal cancer and liver cancer .
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Cat. No.: HY-183905
CAS No.: 1401564-00-8
KR-67607 is a selective 11β-HSD1 inhibitor, with an IC50 value of 4.8 nM against h11β-HSD1 and 7.1 nM against mouse 11β-HSD1. KR-67607 inhibits stress-induced Glucocorticoid receptor nuclear translocation, reduces cortisol levels, suppresses the expression of ROS and proinflammatory cytokines, and enhances Nrf-2-mediated antioxidant gene transcription. KR-67607 maintains trabecular meshwork structure and reverses elevated intraocular pressure. KR-67607 improves ocular antioxidant activity and mucus secretion, reverses ocular surface damage, and prevents ischemia-reperfusion induced ocular injury. KR-67607 can be used in research related to glaucoma and dry eye disease .
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