31 Results for "

hydrogen atom

" in MedChemExpress (MCE) Product Catalog:
Products (31)

31 Results for "hydrogen atom" in MCE Product Catalog:

51
51 Cited Publications
Cat. No.: HY-112053
CAS No.: 1898-66-4
Purity:  98.77%
Synonyms: 2,2-Diphenyl-1-picrylhydrazyl
DPPH (2,2-Diphenyl-1-picrylhydrazyl) is a stable free radical that can be used to measure the radical scavenging activity of antioxidants. The odd electron of nitrogen atom in DPPH is reduced by receiving a hydrogen atom from antioxidants to the corresponding hydrazine. DPPH method may be utilized in aqueous and nonpolar organic solvents and can be used to examine both hydrophilic and lipophilic antioxidants .
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1
1 Cited Publications
Cat. No.: HY-N4168A
CAS No.: 123410-65-1
Synonyms: 5-O-Caffeoylquinic acid methyl ester
Neochlorogenic acid (5-O-Caffeoylquinic) methyl ester is a selective quinone reductase inducer (EC50 = 6.7 μM) and also exhibits hydroxyl radical scavenging activity (EC50 = 0.81 μM). Neochlorogenic acid methyl ester scavenges hydroxyl radicals by donating electrons or hydrogen atoms, while simultaneously inducing quinone reductase expression to enhance carcinogen detoxification, thus exerting antioxidant and cancer chemopreventive activities. Neochlorogenic acid methyl ester is used in research on antioxidant damage and promoting detoxification metabolism, primarily in the fields of cancer chemotherapy and antioxidant-related diseases. Neochlorogenic acid methyl ester is also an HBV inhibitor and can be isolated from the flower buds of *L. japonica* .
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Cat. No.: HY-76440
CAS No.: 6704-31-0
Synonyms: Oxetan-3-one
3-Oxetanone (Oxetan-3-one) is a four-membered cyclic ketone and strained cyclic ether derivative with measurable molecular g-value, magnetic susceptibility anisotropy and molecular quadrupole moment. 3-Oxetanone acts not only as a hydrogen bond acceptor, a tetrel donor and a weak hydrogen bond acceptor, but also forms a classic O-H···O hydrogen bond with H2O via the ether oxygen atom. Alternatively, it forms a C···O tetrel bond with formaldehyde using its carbonyl group as a tetrel donor, while acting as a proton acceptor to form a C-H···O weak hydrogen bond with formaldehyde. 3-Oxetanone can be used to prepare various oxetanes .
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Cat. No.: HY-W012725
CAS No.: 367-27-1
2,4-Difluorophenol is a difluoro-substituted phenol that serves as a starting material for the synthesis of 4,6-difluoro-5,7-dihydroxytryptamine .
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Cat. No.: HY-112053R
CAS No.: 1898-66-4
Synonyms: 2,2-Diphenyl-1-picrylhydrazyl (Standard)
DPPH (Standard) is the analytical standard of DPPH. This product is intended for research and analytical applications. DPPH (2,2-Diphenyl-1-picrylhydrazyl) is a stable free radical that can be used to measure the radical scavenging activity of antioxidants. The odd electron of nitrogen atom in DPPH is reduced by receiving a hydrogen atom from antioxidants to the corresponding hydrazine. DPPH method may be utilized in aqueous and nonpolar organic solvents and can be used to examine both hydrophilic and lipophilic antioxidants .
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Cat. No.: HY-75070
CAS No.: 3886-70-2
(+)-1-(1-Naphthyl)ethylamine ((+)-1-(1-NEA)) is a chiral modifier used to introduce enantioselectivity in catalytic hydrogenation reactions. 1-NEA can undergo H-D exchange with D2 in solution to form N?D bonds. That is, 1-NEA can complete Pt surface adsorption and protonation through amine N atoms, indicating that NEA molecules have the potential to impart enantioselectivity to Pt hydrogenation catalysts .
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Cat. No.: HY-W196368
CAS No.: 2217-60-9
Thymohydroquinone is a COX-2 inhibitor and anti-SARS-CoV-2 agent that induces cytotoxicity, antiproliferative effects and inhibits tumor growth. Thymohydroquinone cannot scavenge superoxide radicals via σ (hydrogen atom transfer) and π-π attacks with superoxide anions. Thymohydroquinone can be used in research related to squamous cell carcinoma, fibrosarcoma and coronavirus disease 2019 (SARS-CoV-2 infection) .
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Cat. No.: HY-24312
CAS No.: 153130-59-7
AD-mix-α is a mixture of organic compounds, commonly used to distinguish and identify asymmetric carbon atoms in chiral compounds. It consists of compounds containing catalytically active metals and chiral ligands. AD-mix-α is widely used in various organic synthesis reactions, such as hydrogenation, addition, and carbonylation reactions, to increase yield and reduce the formation of side reaction products. Although it has no direct application in the medical field, it plays an important role in the pharmaceutical industry and chemical research.
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Cat. No.: HY-W004078
CAS No.: 696-60-6
4-Hydroxybenzylamine is a dimerizer and precursor. 4-Hydroxybenzylamine forms cyclic dimers stabilized by O-H/N hydrogen bonds and π-stacking interactions in solution. 4-Hydroxybenzylamine undergoes condensation with formaldehyde to form a 12-atom azacyclophane, facilitated by pre-organization into cyclic dimeric templates .
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Cat. No.: HY-W039724
CAS No.: 492-22-8
Research Areas:  

Others

Thioxanthone is a powerful photocatalyst for organic reactions. Thioxanthone mediates energy transfer, single-electron transfer, and hydrogen atom transfer processes. As a photoredox catalyst, Thioxanthone is used in nickel-catalyzed self-coupling reactions of aryl halides, arylation reactions of H-phosphine oxides/H-phosphites, decarbonylation reactions of cyclopropenones, and reactions generating acyl radicals from aromatic aldehydes .
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Cat. No.: HY-Y0075
CAS No.: 66-99-9
2-Naphthaldehyde belongs to naphthalene-based bis-aromatic aldehyde compounds. 2-Naphthaldehyde scavenges DPPH and ABTS + free radicals, and exerts reductive effects by donating hydrogen atoms to interrupt free radical chain reactions. 2-Naphthaldehyde inhibits the growth and proliferation of colon cancer cells. 2-Naphthaldehyde serves as a substrate for NAD +-dependent salicylaldehyde dehydrogenase from Pseudomonas strain C6 and is catalytically oxidized. 2-Naphthaldehyde acts as a precursor material for the chemical synthesis of antioxidant Schiff bases .
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Cat. No.: HY-170406
CAS No.: 1949840-87-2
Target:  

Bcl-2 Family

Research Areas:  

Cancer

BCL-XL-IN-3 is a cell-impermeable BCL-XL inhibitor with a Ki of 16 pM. BCL-XL-IN-3 disrupts the critical hydrogen bond network via methylation of the nitrogen atom on the P2-binding amide bond, resulting in complete loss of cellular activity against BCL-XL. BCL-XL-IN-3 can be used in non-small cell lung cancer and cancer-related research .
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Cat. No.: HY-Y0396
CAS No.: 524-38-9
N-Hydroxyphthalimide is a blocking agent and catalyst. N-Hydroxyphthalimide promotes oxidation reactions by generating PINO free radicals and activating hydrogen atom transfer processes. N-Hydroxyphthalimide reduces the expression of anti-apoptotic proteins Survivin and Bcl-xL and activates caspase 9 and caspase 3. N-Hydroxyphthalimide induces Apoptosis. N-Hydroxyphthalimide inhibits the phosphorylation of mTOR (Ser2448, Ser2481) and Akt (Ser473). N-Hydroxyphthalimide has anticancer effects against breast and colon cancer .
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Cat. No.: HY-W129155
CAS No.: 92-81-9
Target:  

Drug Intermediate

Research Areas:  

Others

9,10-Dihydroacridine is a chain-terminating antioxidant that can inhibit lipid peroxidation by capturing peroxide free radicals (LOO•) .
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Cat. No.: HY-W787537
CAS No.: 52748-86-4
Synonyms: LBB
Leucoberbelin blue I (LBB) is a leuco base that is oxidized by manganese through a hydrogen atom transfer reaction forming a colored complex. Leucoberbelin blue I can be used to quantify or confirm the Mn (II) oxides formation .
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Cat. No.: HY-N10516
CAS No.: 17453-58-6
Bacteriopheophytin, a photosynthetic pigment, is a bacterial demagnetised chlorophyll composed of bacterial chlorophyll in which two hydrogen atoms replace the magnesium center. Bacteriopheophytin acts as an electron acceptor in the purple bacterial reaction center (RC) and is involved in electron transfer .
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Cat. No.: HY-W036734
CAS No.: 23868-34-0
Tetrabutylammonium (hydrogen difluoride) is a quaternary ammonium salt containing fluoride ions. It is a highly active and effective reagent, often used in organic synthesis reactions, especially for the modification of organic molecules with fluorine atoms. Tetrabutylammonium (hydrogen difluoride) is also used as a catalyst for various chemical reactions such as esterification and transesterification. Additionally, it is used in the production of specialty chemicals such as surfactants and detergents.
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Cat. No.: HY-W021079
CAS No.: 1000-87-9
Synonyms: 2,4-Dimethylpenta-2,3-diene; 2,4-Dimethyl-2,3-pentadiene; 1,1,3,3-Tetramethylallene
Research Areas:  

Others

Tetramethylallene (2,4-Dimethylpenta-2,3-diene) is a methylated analogue of allen that can be used as a hydrogen-atom acceptor in reactions with HMn(CO)5 and HCo(CO)4 .
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Cat. No.: HY-W004078R
CAS No.: 696-60-6
4-Hydroxybenzylamine (Standard) is the analytical standard of 4-Hydroxybenzylamine (HY-W004078). This product is intended for research and analytical applications. 4-Hydroxybenzylamine is a dimerizer and precursor. 4-Hydroxybenzylamine forms cyclic dimers stabilized by O-H/N hydrogen bonds and π-stacking interactions in solution. 4-Hydroxybenzylamine undergoes condensation with formaldehyde to form a 12-atom azacyclophane, facilitated by pre-organization into cyclic dimeric templates .
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Cat. No.: HY-Y0396R
CAS No.: 524-38-9
N-Hydroxyphthalimide (Standard) is the analytical standard of N-Hydroxyphthalimide (HY-Y0396). This product is intended for research and analytical applications. N-Hydroxyphthalimide is a blocking agent and catalyst. N-Hydroxyphthalimide promotes oxidation reactions by generating PINO free radicals and activating hydrogen atom transfer processes. N-Hydroxyphthalimide reduces the expression of anti-apoptotic proteins Survivin and Bcl-xL and activates caspase 9 and caspase 3. N-Hydroxyphthalimide induces Apoptosis. N-Hydroxyphthalimide inhibits the phosphorylation of mTOR (Ser2448, Ser2481) and Akt (Ser473). N-Hydroxyphthalimide has anticancer effects against breast and colon cancer .
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