Nucléosides

<p>Adenosine-5'-O-(1-thiotriphosphate) lithium salt is an inhibitor of the guanine nucleotide-binding protein that is reversibly inhibited by adenosine triphosphate. It has been shown to inhibit HIV infection by binding to the Ryanodine receptor and blocking the release of calcium ions from intracellular stores. This prevents the activation of caspases, which are enzymes that cause cell lysis. Adenosine-5'-O-(1-thiotriphosphate) lithium salt also blocks transcription and polymerase chain reactions, and may inhibit the growth of cancer cells by inhibiting epidermal growth factor receptors on the cell surface.</p>

<p>N-Acetyl-2'-O-[(tert-butyl)dimethylsilyl]-5'-O-DMT-6'-O-methylguanosine-3'-CE phosphoramidite is a nucleoside and nucleotide analog. It is synthesized by reacting 2'-deoxyguanosine with acetyl chloride, 5'-dimethoxytrityl chloride, and 3'-Ce phosphoramidite in an organic solvent. N-Acetyl-2'-O-[(tert-butyl)dimethylsilyl]-5'-O-DMT-6'-O-methylguanosine has been shown to inhibit the growth of cancer cells and viruses in cell culture studies. It is also a potent inhibitor of HIV replication in vitro.</p>

<p>3′-O-tert-butyldimethylsilyl-5′-O-DMT-N1-methylpseudouridine is a synthetic nucleoside that is used in the synthesis of deoxyribonucleosides. It is an activator nucleoside that has antiviral activity and provides high purity, novel monophosphate nucleosides, and modified nucleosides. 3′-O-tert-butyldimethylsilyl-5′-O-DMT-N1 methylpseudouridine has CAS No. 875302–43–5 and can be used for the synthesis of phosphoramidites or ribonucleotides.</p>

<p>8-Chloro-2'-deoxyguanosine is a reactive oxygen species that can cause oxidative damage to DNA. This compound is generated by the hypochlorous acid (HOCl) in cells and can be found in human tissues. 8-Chloro-2'-deoxyguanosine can also be generated by the HOCl in diabetic patients, where it has been shown to cause oxidative damage to DNA. 8-Chloro-2'-deoxyguanosine is a product of the reaction between hydrogen peroxide and catalase, and it is activated by HOCl. It has been shown to be carcinogenic in animal models, where it causes DNA damage that leads to cancer.</p>

<p>4-Hydroxy-6-methylpyrimidine (4-OHMP) is a metabolite of trimethyltin. It is formed in the liver by methylation of 4,6-dimethylpyrimidine (4,6-DMPU). The levels of 4-OHMP in urine samples are used to monitor exposure to this agent. The median values for urinary concentrations of 4-OHMP are typically 10 times higher than those found in blood samples. The metabolite can be detected in urine up to 2 weeks after an individual’s last contact with trimethyltin. This compound has been shown to inhibit the synthesis of glycol dimethyl ethers and carbamates.</p>

<p>3'-O-Allylguanosine is a antiviral agent that belongs to the group of synthetic nucleosides. It is a monophosphate analog of guanosine and an activator of ribonucleotide reductase. 3'-O-Allylguanosine has been shown to be effective against cancer cells in vitro. It has also been shown to inhibit DNA synthesis and promote DNA degradation in human leukemia cells, suggesting its potential use for the treatment of leukemia.</p>

<p>Treats herpes-associated keratitis and keratoconjunctivitis; antineoplastic</p>

<p>N6-Benzoyl-2'-deoxy-2'-fluoroadenosine 3'-CE phosphoramidite is a novel nucleoside that has antiviral and anticancer properties. It is an analog of adenosine and inhibits the action of ribonucleotide reductase, which is an enzyme that converts ribonucleotides to deoxyribonucleotides. N6-Benzoyl-2'-deoxy-2'-fluoroadenosine 3'-CE phosphoramidite also inhibits the synthesis of DNA, which may be due to its inhibition of DNA polymerase. This compound has been shown to inhibit the growth of leukemia cells in culture and induce apoptosis in human tumor cells.</p>

<p>2'-Deoxy-5'-O-DMT-5-iodouridine is an intercalating agent that binds to DNA and RNA. It can be used as a probe for the detection of specific sequences in human cells. The fluorophore attached to the molecule allows it to be detected by fluorescence microscopy, while the chromophore is responsible for its ability to emit light at a wavelength of 535 nm. 2'-Deoxy-5'-O-DMT-5-iodouridine has been shown to enhance nucleotide excision repair and increase the sensitivity of cancer cells to chemotherapy drugs such as cisplatin. The molecule can also be used as a fluorescent protein marker in her-2 gene amplification and overexpression studies.</p>

<p>5'-Amino-5'-deoxyguanosine (5-ADG) is an intermediate in the de novo synthesis of guanine nucleotides. It can be synthesized from 5-aminoimidazole ribonucleotide and guanosine monophosphate (GMP). 5-ADG is a substrate for the enzyme GTP cyclohydrolase, which converts it to GMP. This intermediate can also be formed by the action of phosphoryl chloride on 5-aminoimidazole ribonucleotide. The reaction of 5-ADG with malonic acid leads to the formation of inosinic acid, which has been postulated to be a precursor of purines. This conversion is catalyzed by adenylosuccinate synthetase and the enzyme adenylosuccinase.</p>

<p>N6-Benzoyl-2’-chloro-2’-deoxy-5’-O-DMT-adenosine is a novel nucleoside that has been shown to have anti-cancer, antiviral, and antiinflammatory activities. It is structurally related to 2’,3’,5’triphosphate adenine (TPAD) and inhibits the synthesis of DNA by competitive inhibition of ribonucleotide reductase. TPAD also induces apoptosis in tumor cells. N6BzCdA has an IC50 value of 0.5 μM for TPAD synthetase from Escherichia coli and rat liver, indicating that it is a potent inhibitor of this enzyme. The purity level of this product is greater than 98%, with a CAS number of 67972-83-1.</p>

<p>Uridine-5-oxyacetic acid methyl ester is a modified nucleotide that is an intermediate in the biosynthesis of uridine. This molecule can be synthesized from 5-hydroxymethyluridine and malonic acid by a methyltransferase. Uridine-5-oxyacetic acid methyl ester can also be obtained from the metabolism of deoxyribose. Analysis of this molecule is possible with spectrometric, mass spectrometric, and chemical structures methods. It has been shown to have a function in translation and protein synthesis. The chemical structure of uridine-5-oxyacetic acid methyl ester has been determined to be guanosine-3',5'-bis(2'-carboxyethyl)phosphate, which is different from that found in DNA or RNA.</p>

<p>Coenzyme and regenerating electron donor in catabolic processes</p>

<p>2'-Deoxyguanosine-5'-carboxylic acid is a synthetic nucleoside that has antiviral and anticancer properties. It is an activator of DNA polymerase, which is used in the synthesis of DNA. 2'-Deoxyguanosine-5'-carboxylic acid also inhibits the activity of ribonucleotide reductase and deoxyribonucleotide reductase, which are enzymes that catalyze the conversion of ribose-5-phosphate to deoxyribose-5-phosphate. This substance also blocks viral replication by inhibiting RNA synthesis in cells infected with HIV or herpes simplex virus type 1.</p>

<p>2,2'-Anhydrothymidine is an anhydro version of thymidine. As 2,2'-Anhydrothymidine is a modified version of thymidine it can help researchers understand what happens when DNA is changed or damaged. Other possible uses as in research related to antiviral drug creation.</p>

<p>8-Allyloxy-9-(b-D-xylofuranosyl)guanine is a novel nucleoside that is an activator of ribonucleotide reductase. It is a deoxyribonucleoside and monophosphate, and it has been shown to be active against cancer cells and viruses. 8-Allyloxy-9-(b-D-xylofuranosyl)guanine inhibits the growth of cancer cells by inhibiting DNA synthesis and protein synthesis, which may be due to its inhibition of ribonucleotide reductase. This drug also has antiviral activity against HIV, herpes simplex virus type 1 (HSV1), and herpes simplex virus type 2 (HSV2).</p>

<p>1-(2'-Deoxy-2'-fluoro-b-D-arabinofuranosyl)6-methylpurine is a synthetic nucleoside analog that has been shown to be an activator of DNA synthesis in mammalian cells. It has antiviral, anticancer, and antibiotic properties due to its ability to inhibit the growth of a variety of cancer cells. 1-(2'-Deoxy-2'-fluoro-b-D-arabinofuranosyl)6-methylpurine also inhibits viral replication by interfering with the replication machinery. This nucleoside analog is a modified form of 6MP and has high purity and quality.</p>

<p>2',3'-Di-O-acetyl-D-uridine is a nucleoside for use in research applications</p>

<p>Inosine-5'-diphosphate disodium salt (IDPS) is a nitro compound that is used in the synthesis of antibacterial drugs. It is also used in the production of polymers and as a precursor to other organic compounds. IDPS has been shown to have antibacterial activity against halogeno bacteria, such as buprestidae, and many Gram-positive bacteria, including encapsulated strains. IDPS has been shown to be effective against both damaged cells and healthy cells in culture. The mechanism of action may involve inhibition of protein synthesis by blocking the ribosomes or by interfering with DNA replication. This drug also inhibits growth rate of japonica rice and heterocycles.</p>

<p>Cytidine based prodrug with gemcitabine is a nucleoside analog that has antiviral and anticancer properties. It is a modified cytidine-based prodrug with gemcitabine which is an anticancer drug. Cytidine based prodrug with gemcitabine inhibits viral DNA synthesis by competitively inhibiting the incorporation of deoxycytidine monophosphate into the viral DNA chain. The prodrug also inhibits the proliferation of cancer cells by interfering with DNA synthesis, which leads to cell death.</p>

<p>2'-Deoxy-5-ethyluridine is a nucleoside analog that is used in cancer gene therapy. It is an analog of the natural pyrimidine base uracil and inhibits RNA synthesis by competing with natural nucleosides for incorporation into the growing RNA chain. 2'-Deoxy-5-ethyluridine is cytotoxic to cervical cancer cells, inhibiting cell growth and proliferation at inhibitory doses of 0.1 μM. This drug has also been shown to have synergistic effects with other drugs such as trifluoroacetic acid, monoclonal antibody, tissue culture, glycosidic bond, biological properties, cancer tissues, and polymerase chain reaction (PCR).</p>

<p>2'-O-Methyl-5-propynylcytidine is an antiviral drug that inhibits the replication of retroviruses by competitive inhibition of the viral RNA polymerase. It has been shown to be effective against HIV, HSV and CMV. This drug also has shown anticancer activity in vitro and in vivo. 2'-O-Methyl-5-propynylcytidine has a novel mechanism of action and is used as a building block for oligonucleotide synthesis because it is resistant to degradation by nucleases.</p>

<p>Kinetin riboside-5'-triphosphate sodium salt is a novel antiviral. It is a modified ribonucleotide that inhibits DNA synthesis and has been shown to be effective against cancer cells in vitro. Kinetin riboside-5'-triphosphate sodium salt can also activate the immune system by inducing the production of cytokines, such as interleukin-2 (IL-2), which may have anticancer effects.</p>

<p>2'-Deoxy-6-methylthioguanosine is a novel nucleoside and nucleotide analog with antiviral and anticancer activities. It has been shown to inhibit the replication of DNA by inhibiting the activity of DNA polymerase. The target of this drug is not related to any virus or bacterial species, but it inhibits the growth of cancer cells in vitro. The synthesis of 2'-deoxy-6-methylthioguanosine can be achieved by modifying commercially available phosphoramidites.</p>

<p>2-[(Benzo[b]thien-2-ylcarbonyl)amino]benzoic acid is a benzoic acid derivative for use in research</p>

<p>Trans-Zeatin-o-glucoside riboside is a nucleotide that is found in protonemata and is involved in the regulation of cell division, cytokinin production, and responses to light. It is a cytokinin that regulates the pathways of nitrogen metabolism and other metabolic pathways. Trans-Zeatin-o-glucoside riboside has been detected at detectable levels in cells, tissues, and fluids. It has been shown to be involved in the evolution of plants. It has been shown to regulate cell division by inhibiting the phosphorylation of fibrillarin protein kinase, which leads to an increase in cyclins D1/D2 with no change in cyclin E1/E2. This nucleotide may also play a role in regulating cytokinin production by binding to DNA and influencing gene transcription.</p>

<p>3',5'-Di-O-(tert-butyldimethylsilyl)-2'-deoxyguanosine is a synthetic nucleoside with antiviral properties. It is a monophosphate that can be used to activate other nucleosides. This product has been shown to inhibit human immunodeficiency virus (HIV) reverse transcriptase in vitro and in vivo, as well as the replication of other viruses such as herpes simplex virus (HSV).</p>

<p>Used as a protected 2'-ketouridine nucleoside in the synthesis of modified RNA oligonucleotides. The 1,1,3,3-tetraisopropyldisiloxane-1,3-diyl (TIPDS or TBDPSi2) group protects the 3' and 5' hydroxyl groups, while the 2'-keto (or 2'-oxo) modification introduces a specific functional group at the 2' position of the ribose sugar.</p>

<p>N4-Acetyl-5-methylcytidine is a novel, modified nucleoside with antiviral and anticancer properties. It is an activator of RNA polymerase II and inhibits DNA synthesis by inhibiting the activity of DNA polymerase. N4-Acetyl-5-methylcytidine has been shown to be effective in treating cancers that are sensitive to chemotherapy, such as lymphomas, myelomas, and leukemias. It can be used as a substitute for cytosine in the synthesis of oligonucleotides and phosphoramidites.</p>

<p>2'-Deoxyguanosine 3'-O-L-valinyl ester is a synthetic nucleoside obtained from 2'-deoxyguanosine and valine. It has antiviral activity against DNA viruses, such as herpes simplex virus and vaccinia virus, and anticancer activity. 2'-Deoxyguanosine 3'-O-L-valinyl ester is an analog of guanosine that has been modified to contain an L-valyl group at the 3' position. This modification increases the stability of this nucleoside in aqueous solutions and provides potent antiviral and anticancer activity.</p>

<p>Polyinosinic acid-polycytidylic acid (Poly I:C), an agonist of TLR3 toll-like receptors, is a synthetic double-stranded RNA analog, consisting of polyinosinic acid (poly I) paired with polycytidylic acid (poly C), forming a stable duplex structure.PolyI:C stimulates the secretion of pro-inflammatory cytokines and type I interferon through its interaction with endosomal Toll-like receptor 3 (TLR-3) and the cytoplasmic receptors melanoma differentiation-associated gene 5 (MDA-5) and retinoic acid-inducible gene I (RIG-I). This immunostimulant activity makes Poly I:C a useful vaccine adjuvant and is used in vaccine formulations. Poly I:C and its stabilized analogs (e.g., poly-ICLC) are also being actively researched for their dual role in oncology: directly targeting tumors and acting as immune potentiators. For example Poly I:C can induce apoptosis in tumor cells and stimulate immunogenic cell death and is therefore being explored alongside chemotherapy, radiotherapy, and checkpoint inhibitors, helping to overcome resistance mechanisms and strengthen treatment outcomes.We can supply PolyI:C to all stages of your project - from R&amp;D and preclinical phases right up to GMP commercial manufacture. Contact our team for custom Poly I:C products.<br>For more on poly I:C read out blog 'Poly I:C: A Vaccine Adjuvant With Oncological Potential.'</p>

<p>6-(4-Morpholino)-9-(β-D-ribofuranosyl)-9H-purine is a modified monophosphate analog of adenosine. It is an antiviral agent that inhibits the synthesis of nucleic acids in virus-infected cells, preventing viral replication and spread. 6-(4-Morpholino)-9-(β-D-ribofuranosyl)-9H-purine is also used as a radiosensitizer to treat cancer. This drug is synthesized by high purity, high quality and reliable suppliers.</p>

<p>2'-O-Benzoyl-5'-O-DMT-4-thiouridine is a phosphoramidite monophosphate nucleoside analog. It has antiviral and anticancer properties, and has been shown to activate the immune system in mice. 2'-O-Benzoyl-5'-O-DMT-4-thiouridine is also novel because it is structurally different from all other nucleosides that have been studied for antiviral and anticancer activity. This drug can be used as an activator of DNA synthesis in vitro.</p>

<p>Broad-spectrum anti-viral; inhibitor of HCV NS5B RNA polymerase</p>

<p>8-Chloroadenosine is a potent inhibitor of apoptosis, which is the process by which cells die. It has been shown to inhibit cell growth in murine hepatoma cells and synergize with other cytotoxic agents. 8-Chloroadenosine inhibits the activity of bcl-2 protein and thus blocks the release of cytochrome c from mitochondria. This causes DNA damage by inhibiting DNA synthesis and protein synthesis, leading to apoptosis. 8-Chloroadenosine has also been shown to be an active inhibitor of cancer cells, especially myeloma cell lines. The response element for 8-chloroadenosine is located in the promoter region of the gene encoding cyclooxygenase 2 (COX-2), which encodes a protein that produces prostaglandins involved in inflammation and tumor growth. The concentration of camp in cancer tissues determines whether these cells will respond favorably or unfavorably to this drug.</p>

<p>2'-O-Methyladenosine (2'-OMeA) is a nucleoside that is a low-energy analog of adenosine. It has been shown to be an effective inhibitor of protein synthesis in vitro, by inhibiting RNA polymerase in the process of transcription. 2'-OMeA has also been shown to inhibit virus replication in vitro and to have potent inhibitory activity against human immunodeficiency virus type 1 (HIV-1). 2'-OMeA inhibits viral replication by binding to the viral ribonucleotide reductase enzyme and blocking the conversion of ribonucleotides into deoxyribonucleotides. The chemical structures of 2'-OMeA are similar to those found in fatty acids and can be detected using chemical ionization mass spectroscopy. The sequence for 2'-OMeA was determined through sequencing methods including NMR spectroscopy and nuclear magnetic resonance data analysis.</p>

<p>8-Hydrazinoadenosine is an inhibitor of phosphodiesterase, which is a key enzyme in the regulation of cellular processes. 8-Hydrazinoadenosine binds to the active site of the enzyme and inhibits its function. This binding prevents hydrolysis of the phosphate bond between two nucleotides and so prevents the formation of a new nucleotide from a nucleoside and a phosphate molecule. 8-Hydrazinoadenosine has been shown to inhibit phosphodiesterases in vitro and in animals, including rat brain and mouse lung. Strategies for 8-hydrazinoadenosine commercialization have been investigated, including attaching it to other molecules that are more easily absorbed by cells or using irradiation to produce 8-aminoadenosine, which can be converted into 8-hydrazinoadenosine.</p>

<p>2'-O-Acetyl-8-bromo-7-cyano-7-deaza-3'-deoxy-3'-fluoro-5'-O-[toluoyl]adenosine (ABT) is a modified nucleoside that has anticancer and antiviral properties. ABT is a monophosphate nucleotide with an acetyl group at the 2' position of the ribose and a toluoyl group on the 7 position of the adenine moiety. In vitro, ABT inhibits tumor proliferation in breast cancer cells and suppresses viral replication in herpes simplex virus type 1 (HSV1) infected cells. ABT also has potential as a novel therapeutic agent for treating cancers and other diseases caused by HSV1 infection.</p>

<p>2'-Deoxypseudoisocytidine is a synthetic nucleoside that is structurally similar to pseudoisocytidine. It is used as an anti-cancer agent in labeling studies. The compound exhibits cytotoxic activity against tumor cells and inhibits the growth of cultured human cancer cell lines. 2'-Deoxypseudoisocytidine has been shown to be effective in preventing the growth of brain tumors in mice by targeting DNA synthesis, which may be due to its ability to act as an analog of cytosine and bind to DNA. This drug also has potential for use as a chemotherapeutic agent for leukemia and other cancers.</p>

<p>A P2Y2 receptor agonist that has been studied in cystic fibrosis and retinal diseases such as retinal detachment. Denufosol was studied as an inhaled drug for cystic fibrosis, due to its ability to activate an alternative chloride channel and avoiding the defective CFTR chloride channel. This enhances hydration of the lung mucosa and improves mucociliary clearance.  The drug did not progress from phase III clinical trials. Denufosol resulted in subretinal fluid reabsorption in in vivo model of retinal detachment.</p>

<p>N6-Benzoyl-3’-deoxy-5'-O-DMT-3’- fluoroadenosine 2’-CE-phosphoramidite is a novel and activator ribonucleoside with deoxyribonucleosides, diphosphate and phosphoramidites. It is an anti-cancer, antiviral, and antiinflammatory agent. N6-Benzoyl-3’-deoxy-5'-O-DMT-3’ -fluoro adenosine 2’ -CE phosphoramidite has a CAS no.</p>

<p>Fmoc morpholino uridine monomer is a novel anticancer drug. It can inhibit the proliferation of cancer cells and induce cell apoptosis by interfering with the synthesis of DNA, RNA and protein. Fmoc morpholino uridine monomer has been shown to be active against viruses, such as human immunodeficiency virus (HIV), herpes simplex virus (HSV) and influenza A virus. This compound is also reported to have antiviral activity against HIV-1 in vitro and HSV-2 in vivo.</p>

<p>Glycinamide ribonucleotide (GAR) is a nucleoside that is structurally similar to the natural nucleosides cytidine and adenosine. GAR has antiviral activity against HIV and HSV-1, and it inhibits the growth of cancer cells in culture. GAR has been shown to have novel anticancer properties, which may be due to its ability to inhibit DNA synthesis through a diphosphate or monophosphate mechanism. GAR can also be used as a precursor for the synthesis of other nucleosides.</p>

<p>5’(R)-C-Methyl-5-methyluridine is an nucleoside and a ribonucleoside. It has antiviral, anticancer, and DNA modifying properties. This product is used in research to make phosphoramidites, diphosphates, and deoxyribonucleosides. 5’(R)-C-Methyl-5-methyluridine is also used in the production of modified oligonucleotides as well as other novel DNA compounds.</p>

<p>2'-Deoxyinosine is an antimicrobial peptide that has been shown to have potent activity against Gram-positive bacteria, including Staphylococcus aureus. 2'-Deoxyinosine binds to the 3′-hydroxyl group of nucleic acid, preventing DNA replication and transcription. This binding also prevents ribosomal RNA from binding to the ribosome, inhibiting protein synthesis. 2'-Deoxyinosine has been detected using a highly sensitive optical sensor and can be used as a model system for studying the interaction between dsDNA duplexes and other biomolecules. The pharmacokinetic properties of this molecule have been determined in rats by measuring its concentration in serum over time after injection. These data were then used to determine the amount of 2'-deoxyinosine that was needed to inhibit bacterial growth in water samples.</p>

<p>2′-O-Acetyl-3′-deoxy-3′-fluoro-5′-O-toluoyluridine is a novel, activator ribonucleoside. It is synthesized by the phosphoramidite method and modified with an acetyl group at the 2′ position and a toluoyl group at the 3′ position. This compound has been shown to be active against cancer cells in vitro and in vivo.</p>

<p>Adenine is a nucleobase found in DNA and RNA. It is an essential component of the human body and is used in the production of phosphoramidites, which are chemical compounds that can be converted into phosphodiester bonds. Adenine has been shown to have anticancer properties, and it may function as a novel activator for other anticancer drugs. Adenine is also used as a monophosphate in some cases. The purity of this compound exceeds 99% and the molecular weight ranges from 162 to 166.5 Daltons.</p>

<p>Nucleoside phosphoramidites are widely used as building blocks in the chemical synthesis of oligonucleotides. The use of a chemical synthesis rather than an enzymatic one allows bespoke oligonucleotides of a desired sequence to be obtained. 3’-Cyanoethyl phosphoramidites are typically modified by reaction with the 5’ hydroxyl of the next nucleoside in the desired sequence. The reaction is usually catalysed by 1H-tetrazole or 4,5-dicyanoimidazole in acetonitrile. N4-Benzoyl-2'-deoxy-5'-O-DMT-5-methylcytidine 3'-CE phosphoramidite, also called N4-Bz-5'-DMT-5-Me-dC phosphoramidite, is used in the synthesis of 2’-deoxy-5-methylcytidine-containing oligonucleotides as antisense drugs.</p>

<p>2'-Deoxy-N2-DMF-5'-O-tritylguanosine is a nucleoside that is used as a building block in the synthesis of oligonucleotides and other DNA analogues. It is a novel, synthetic nucleoside. The compound has antiviral and anticancer properties. It has been evaluated for use as an activator in antibody production and in the treatment of HIV infection and certain types of cancer. 2'-Deoxy-N2-DMF-5'-O-tritylguanosine is a phosphoramidite, which can be used to synthesize DNA or RNA. This product is available in high purity, diphosphate form and can be used to prepare Anticancer (CAS No. 40094-22-2) Novel Nucleosides (CAS No. 40094-22-2) Phosphoramidites (CAS No. 40094-22</p>

<p>6-Amino-2,5-dihydro-2-(b-D-ribofuranosyl)-4H-pyrazolo[3,4-d]pyrimidin-4-one is a novel chemical. It is a nucleoside analog that has been shown to inhibit the growth of cancer cells in vitro and in vivo. 6-Amino-2,5-dihydro-2-(b-D ribofuranosyl)-4H pyrazolo[3,4 d]pyrimidin 4 one has also been shown to inhibit viral replication. It is phosphoramidites that are modified with bifunctional linkers for coupling to DNA or RNA molecules. 6 amino 2 5 dihydro 2 (b D ribofuranosyl) 4 H pyrazolo 3 4 d pyrimidine 4 one has high purity and high quality.</p>