CymitQuimica logo
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 440 produtos para "Grupos de protecção".

produtos por página.
  • Cbz-L-glutamine

    CAS:

    Cbz-L-glutamine is a water soluble compound that is used in the synthesis of pomalidomide. It is synthesized through a stepwise amide formation from methylamine and ethylene diamine. Cbz-L-glutamine has been shown to have an inhibitory effect on cancer cells, which may be due to its ability to break down hydroxamic acids. This chemical reaction causes the release of hydrogen ions, which leads to the disruption of various cellular processes, such as DNA replication and protein synthesis. The uptake of Cbz-L-glutamine by cancer cells has been shown in tissue culture experiments.

    Fórmula:C13H16N2O5
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:280.28 g/mol

    Ref: 3D-FC39401

    500g
    258,00€
    1kg
    379,00€
    2kg
    607,00€
    5kg
    1.023,00€
  • 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
    328,00€
    50mg
    461,00€
    100mg
    683,00€
    250mg
    1.036,00€
    500mg
    1.526,00€
  • 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
    206,00€
    5g
    387,00€
    10g
    612,00€
    25g
    1.280,00€
    50g
    2.327,00€
  • 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
    906,00€
    1g
    1.195,00€
    2g
    1.536,00€
    5g
    2.182,00€
    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
    464,00€
    100g
    10.042,00€
  • 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
    215,00€
    2g
    376,00€
    5g
    736,00€
    10g
    1.174,00€
    25g
    2.078,00€
  • 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
    186,00€
    1g
    229,00€
    2g
    343,00€
    5g
    478,00€
    10g
    717,00€
  • 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€
  • 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
    186,00€
    5g
    273,00€
    10g
    450,00€
    25g
    802,00€
    50g
    1.211,00€
  • 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

    10g
    7.554,00€
    25g
    11.331,00€
  • 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
    387,00€
    10g
    669,00€
    25g
    1.109,00€
  • 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
    186,00€
    2g
    246,00€
    5g
    479,00€
    10g
    748,00€
    25g
    1.410,00€
  • 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
    186,00€
    25g
    286,00€
    50g
    343,00€
    100g
    478,00€
    250g
    815,00€
  • 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
    815,00€
    2g
    1.024,00€
    5g
    1.707,00€
    10g
    2.493,00€
    25g
    4.155,00€
  • 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

    5g
    298,00€
    10g
    489,00€
    25g
    684,00€
    50g
    943,00€
    100g
    1.332,00€
  • Boc-glu(OBzl)-OH

    CAS:
    Boc-glu(OBzl)-OH is a small-molecule drug that binds to the glutamate receptor. It has been shown to have anticancer activity in vitro and in vivo, but does not affect normal cells. Boc-glu(OBzl)-OH has been used as a synthetic substrate for the preparation of conjugates containing an amide group. This chemical can also be used as an anticancer agent by inhibiting protease activity, which inhibits cancer cell growth. The uptake of Boc-glu(OBzl)-OH can be increased by making it more acidic or by using an efficient method such as ultrasound.
    Fórmula:C17H23NO6
    Pureza:Min. 98 Area-%
    Cor e Forma:Powder
    Peso molecular:337.37 g/mol

    Ref: 3D-FB39384

    100g
    384,00€
    250g
    684,00€
    500g
    1.036,00€
    1kg
    1.465,00€
    2kg
    1.954,00€
  • Boc-D-Tyr(tBu)-OH

    CAS:
    Boc-D-Tyr(tBu)-OH is a natural product that is an amphipathic molecule with a cyclic structure. It has been shown to be able to inhibit the growth of bacteria, such as Staphylococcus aureus and Escherichia coli, by acting as an antibiotic. Boc-D-Tyr(tBu)-OH inhibits the synthesis of peptides by binding to the ribosome and blocking peptide elongation. This molecule also inhibits peptide synthesis by interacting with the aminoacyl site on the ribosome and preventing it from binding with amino acids. Boc-D-Tyr(tBu)-OH is synthesized in two stages: solid phase peptide synthesis and nucleophilic activation. The decapeptides are then purified and characterized based on their function.
    Fórmula:C18H27NO5
    Pureza:Min. 95%
    Cor e Forma:Powder
    Peso molecular:337.41 g/mol

    Ref: 3D-FB72175

    25g
    547,00€
    50g
    777,00€
    100g
    1.038,00€
    250g
    2.081,00€
    500g
    3.569,00€
  • Triisopropylsilane

    CAS:
    Fórmula:C9H22Si
    Pureza:98%
    Cor e Forma:Liquid
    Peso molecular:158.3565

    Ref: IN-DA0035R5

    10g
    Descontinuado
    25g
    Descontinuado
    4x25g
    Descontinuado
    Produto descontinuado
  • Chloro(dodecyl)dimethylsilane

    CAS:
    Fórmula:C14H31ClSi
    Pureza:96%
    Cor e Forma:Liquid
    Peso molecular:262.9344

    Ref: IN-DA003OSK

    10g
    Descontinuado
    25g
    Descontinuado
    100g
    Descontinuado
    500g
    Descontinuado
    1kg
    Descontinuado
    Produto descontinuado
  • Di-Tert-Butyl Dicarbonate

    CAS:
    Fórmula:C10H18O5
    Pureza:98%
    Cor e Forma:Solid
    Peso molecular:218.2469

    Ref: IN-DA0034SA

    25g
    Descontinuado
    50g
    Descontinuado
    100g
    Descontinuado
    250g
    Descontinuado
    500g
    Descontinuado
    1kg
    Descontinuado
    900g
    Descontinuado
    1000g
    Descontinuado
    5kg
    Descontinuado
    5000g
    Descontinuado
    10kg
    Descontinuado
    25kg
    Descontinuado
    50kg
    Descontinuado
    100kg
    Descontinuado
    250kg
    Descontinuado
    Produto descontinuado