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Grupos de protecção

Grupos de protecção

Os grupos de proteção são usados na síntese orgânica para mascarar temporariamente grupos funcionais reativos, permitindo que reações seletivas ocoam sem interferência. Esses grupos são essenciais para processos de síntese em várias etapas, garantindo que partes específicas da molécula permaneçam não reativas enquanto outras reações são realizadas. Nesta seção, você encontrará uma variedade de grupos de proteção adequados para diferentes grupos funcionais, juntamente com reagentes para sua introdução e remoção. Na CymitQuimica, oferecemos uma gama abrangente de grupos de proteção de alta qualidade para facilitar suas estratégias sintéticas.

Subcategorias de "Grupos de protecção"

Foram encontrados 447 produtos de "Grupos de protecção"

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  • Fmoc-Thr(tBu)-D-Ser(Psi(Me,Me)pro)-OH


    Fmoc-Thr(tBu)-D-Ser(Psi(Me,Me)pro)-OH is a speciality chemical that is used as a reagent for peptide synthesis. It is also useful in the synthesis of complex compounds and scaffolds. This compound has high quality with a CAS number of 56610-81-8. Fmoc-Thr(tBu)-D-Ser(Psi(Me,Me)pro)-OH is a versatile building block that can be used in reactions involving amines and carboxylic acids. Fmoc-Thr(tBu)-D-Ser(Psi(Me,Me)pro)-OH is an intermediate that can be used in the synthesis of many different compounds.

    Fórmula:C29H36N2O7
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:524.61 g/mol

    Ref: 3D-FF157283

    500mg
    894,00€
    1g
    1.184,00€
    2g
    1.515,00€
    5g
    2.130,00€
    10g
    2.806,00€
  • Fmoc-Cys-(CAMTrt)-OH

    CAS:

    Fmoc-Cys-(CAMTrt)-OH is an amino acid derivative, which is a synthetic compound essential for peptide synthesis. It is derived from natural cysteine, an amino acid found in proteins, and is modified with an Fmoc (9-fluorenylmethoxycarbonyl) protective group and a CAMTrt (trityl sulfonium ion) moiety. This derivative is used primarily in solid-phase peptide synthesis, where the Fmoc group protects the amine during chain elongation, and the CAMTrt group safeguards the thiol function of cysteine, preventing unwanted side reactions during synthesis.

    Fórmula:C39H34N2O5S
    Pureza:Min. 98 Area-%
    Peso molecular:642.76 g/mol

    Ref: 3D-F-6981

    1g
    460,00€
    100g
    9.954,00€
  • Boc-L-prolinal

    CAS:

    Boc-L-prolinal is a stereoselective enolate that has been used in the synthesis of organometallic compounds. It is also used in the preparation of monoclonal antibodies, which are proteins that are produced by the immune system to help fight off infections. Boc-L-prolinal has been shown to be an effective agent for treating many cancers, including breast cancer and melanoma. In addition, it has been shown to inhibit epidermal growth factor (EGF) and other growth factors, which may be due to its ability to induce apoptotic signaling. Boc-L-prolinal also contains a carbonyl group, which can undergo acidolysis reactions with nucleophiles such as water or alcohols.

    Fórmula:C10H17NO3
    Pureza:Min. 95%
    Cor e Forma:Colorless Clear Liquid
    Peso molecular:199.25 g/mol

    Ref: 3D-FB50564

    -Unit-kgkg
    A consultar
    2g
    A consultar
  • Fmoc-N-Me-Asp(OtBu)-OH

    CAS:
    Fmoc-N-Me-Asp(OtBu)-OH is a synthetic peptide with potential immunosuppressive properties. It has been shown to inhibit the proliferation of human lymphocytes in response to lipopolysaccharides (LPS) and also to suppress the release of cytokines such as IL-1β, IL-6, and TNFα. The effects were dose dependent and could be reversed by the addition of a neutralizing antibody. This peptide can be used as an immunosuppressant in clinical trials that are investigating treatments for myasthenia gravis. Fmoc-N-Me-Asp(OtBu)-OH has been synthesised using chemical synthesis methods from commercially available reagents.
    Fórmula:C24H27NO6
    Pureza:Min. 98 Area-%
    Cor e Forma:Powder
    Peso molecular:425.47 g/mol

    Ref: 3D-FF48597

    1g
    258,00€
    2g
    457,00€
    5g
    849,00€
    10g
    1.387,00€
    25g
    2.338,00€
  • H-L-Cys(mdnpe)-OH

    CAS:
    A novel protected cysteine that can be cleaved by photolysis.
    Fórmula:C12H14N2O6S
    Pureza:Min. 95%
    Peso molecular:314.32 g/mol

    Ref: 3D-BMC07843

    25mg
    322,00€
    50mg
    454,00€
    100mg
    673,00€
    250mg
    1.019,00€
    500mg
    1.499,00€
  • Fmoc-L-Cys(StBu)-OH

    CAS:

    Fmoc-L-Cys(StBu)-OH is a synthetic molecule that is used in pharmaceutical formulations. It can be synthesized from Fmoc-L-Cys and L-serine methyl ester by the chemical ligation of the two molecules. The chloride group at the end of this molecule provides a functional group for conjugation with other biomolecules, such as fatty acids. This molecule has been shown to have high purity with an isolated yield of about 98%.

    Fórmula:C22H25NO4S2
    Pureza:Min. 98 Area-%
    Cor e Forma:Powder
    Peso molecular:431.57 g/mol

    Ref: 3D-FF41067

    2g
    203,00€
    5g
    381,00€
    10g
    602,00€
    25g
    1.259,00€
    50g
    2.289,00€
  • 4-tert-Butyl-L-phenylalanine

    CAS:
    4-tert-Butyl-L-phenylalanine is a synthetically created antigen with the ability to interact with red blood cells. It has been shown to be a potent probe for the detection of P. falciparum, and can be used as an affinity reagent for the isolation and identification of mutations in the c-terminal region of this protein. 4-tert-Butyl-L-phenylalanine also interacts with P. falciparum apical membrane proteins, which are specific to this type of parasite. This interaction may play a role in its invasion into red blood cells, which is what causes malaria infection.
    Fórmula:C13H19NO2
    Pureza:Min. 95%
    Cor e Forma:White Powder
    Peso molecular:221.3 g/mol

    Ref: 3D-FB49021

    5g
    381,00€
    10g
    658,00€
    25g
    1.091,00€
    1kg
    13.237,00€
    2kg
    25.330,00€
  • tert-Butoxydiphenylchlorosilane (stabilized with CaCO3)

    CAS:
    Fórmula:C16H19ClOSi
    Pureza:>95.0%(GC)
    Cor e Forma:Colorless to Almost colorless clear liquid
    Peso molecular:290.86

    Ref: 3B-B1436

    25ml
    684,00€
  • 2-Chloroethyl Vinyl Ether (stabilized with MEHQ + Triethanolamine)

    CAS:
    Fórmula:C4H7ClO
    Pureza:>97.0%(GC)
    Cor e Forma:Colorless to Almost colorless clear liquid
    Peso molecular:106.55

    Ref: 3B-C0174

    25ml
    105,00€
  • Chlorodimethylphenylsilane

    CAS:
    Fórmula:C8H11ClSi
    Pureza:>96.0%(GC)
    Cor e Forma:Colorless to Light yellow clear liquid
    Peso molecular:170.71

    Ref: 3B-D1147

    5ml
    30,00€
    25ml
    75,00€
  • Pentafluorophenyl Acetate

    CAS:
    Fórmula:C8H3F5O2
    Pureza:>98.0%(GC)
    Cor e Forma:White to Almost white powder to lump
    Peso molecular:226.10

    Ref: 3B-P2192

    1g
    59,00€
    5g
    181,00€
  • (Trifluoroacetyl)benzotriazole (mixture of 1H- and 2H- isomers)

    CAS:
    Fórmula:C8H4F3N3O
    Pureza:>98.0%(HPLC)
    Cor e Forma:White to Almost white powder to crystal
    Peso molecular:215.14

    Ref: 3B-T3174

    1g
    56,00€
    5g
    168,00€
  • Fmoc-glycinol

    CAS:
    Fmoc-glycinol is a synthetase that is used to synthesize glycinol conjugates. It binds to the receptor on Gram-positive bacteria and blocks the synthesis of bacterial cell wall, leading to cell death. Fmoc-glycinol has been shown to have high binding constants with amines and an acyl chain, which allows it to bind with antigen. Fmoc-glycinol also has strong nucleophilic properties that allow it to react with chloride ions in water and other polar solvents. This reaction mechanism leads to the formation of a new bond between two molecules, which is called a glycinol linkage.
    Fórmula:C17H17NO3
    Pureza:Min. 95%
    Cor e Forma:White Powder
    Peso molecular:283.32 g/mol

    Ref: 3D-FF31852

    10g
    158,00€
    25g
    282,00€
    50g
    338,00€
    100g
    470,00€
    250g
    804,00€
  • Trityl-L-phenylalanine diethylamine

    CAS:
    Trityl-L-phenylalanine diethylamine is a reagent that is used in the synthesis of peptides, reagents, and other chemicals. Trityl-L-phenylalanine diethylamine reacts with an azide to form a triazole. It can also be used to convert an acid into an amino acid. This chemical has been shown to be sensitive to plasmin, which may lead to degradation during peptide synthesis.
    Fórmula:C28H25NO2·C4H11N
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:480.64 g/mol

    Ref: 3D-FT48947

    2g
    150,00€
    5g
    268,00€
    10g
    443,00€
    25g
    789,00€
    50g
    1.191,00€
  • N-Cbz-L-homoserine

    CAS:

    N-Cbz-L-homoserine is a synthetic amino acid that has been used in positron emission tomography (PET) studies to determine the uptake and utilisation of other amino acids by biological systems. It has also been used in biological studies to investigate the mechanism of nucleophilic attack by serine on Cbz-protected homoserine. N-Cbz-L-homoserine has been shown to have hepatotoxic effects and may be carcinogenic, but no evidence indicates it is mutagenic or teratogenic. It is highly reactive with acrylonitrile, which can cause it to produce hydrogen cyanide as a result of nitrile hydrolysis.

    Fórmula:C12H15NO5
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:253.25 g/mol

    Ref: 3D-FC19701

    500mg
    167,00€
    1g
    215,00€
    2g
    343,00€
    5g
    478,00€
    10g
    717,00€
  • Chlorodiethylisopropylsilane

    CAS:
    Fórmula:C7H17ClSi
    Pureza:>97.0%(T)
    Cor e Forma:Colorless to Almost colorless clear liquid
    Peso molecular:164.75

    Ref: 3B-D2262

    1g
    59,00€
    5g
    236,00€
  • Fmoc-D-allo-Thr(tBu)-L-Ser(Psi(Me,Me)pro)-OH


    Fmoc-D-allo-Thr(tBu)-L-Ser(Psi(Me,Me)pro)-OH is a reagent that is used as an intermediate in the synthesis of complex compounds. It is also a fine chemical that can be used to prepare speciality chemicals. Fmoc-D-allo-Thr(tBu)-L-Ser(Psi(Me,Me)pro)-OH has CAS No. and can be used as a reaction component in various reactions. This compound is versatile and can be used as a building block for other compounds.
    Fórmula:C29H36N2O7
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:524.61 g/mol

    Ref: 3D-FF156923

    25g
    A consultar
    10g
    7.432,00€
  • Fmoc-D-allo-isoleucine

    CAS:
    Fmoc-D-allo-isoleucine is a β-amino acid that is used in the synthesis of calpinactam, a multidrug used to treat tuberculosis. The chemical structure of Fmoc-D-allo-isoleucine has been analyzed by spectroscopic methods and found to be labile. This product is susceptible to hydrolysis and can undergo modifications such as dehydration, oxidation, or racemization. Fmoc-D-allo-isoleucine has shown antimycobacterial activity when tested against M. tuberculosis.
    Fórmula:C21H23NO4
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:353.41 g/mol

    Ref: 3D-FF48562

    1g
    163,00€
    2g
    242,00€
    5g
    472,00€
    10g
    736,00€
    25g
    1.388,00€
  • Fmoc-Asp(OtBu)-D-Ser(Psi(Me,Me)pro)-OH


    Fmoc-Asp(OtBu)-D-Ser(Psi(Me,,Me)pro)-OH is a high quality, reagent, complex compound, useful intermediate, fine chemical, useful scaffold, and speciality chemical that is used in the synthesis of peptides and other organic compounds. It can be used as a reaction component for the synthesis of peptides and other organic compounds. This building block is versatile with many different functional groups and can be used in a wide variety of reactions. Fmoc-Asp(OtBu)-D-Ser(Psi(Me,,Me)pro)-OH is also a reaction component that can be used to make various drugs or pharmaceuticals.
    Fórmula:C29H34N2O8
    Pureza:Min. 95%
    Cor e Forma:White Powder
    Peso molecular:538.59 g/mol

    Ref: 3D-FF156925

    1g
    802,00€
    2g
    1.008,00€
    5g
    1.679,00€
    10g
    2.453,00€
    25g
    4.088,00€
  • Fmoc-N-Me-Asn(Trt)-OH

    CAS:
    Fmoc-N-Me-Asn(Trt)-OH is a peptidomimetic that mimics the sequence of the serine protease. The Fmoc group on the N-terminal amino acid is used to protect against proteolytic degradation and its methyl ester group confers stability in biological fluids. The Fmoc-N-Me-Asn(Trt)-OH has been shown to have minimal effects on endogenous protein synthesis, while also being quantified with high sensitivity and specificity. This compound has been shown to inhibit protein-protein interactions by acting as a competitive inhibitor of serine proteases.
    Fórmula:C39H34N2O5
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:610.7 g/mol

    Ref: 3D-FF72659

    500mg
    290,00€
    1g
    454,00€
    2g
    592,00€
    5g
    1.021,00€
    1kg
    15.211,00€