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Protecting Groups

Protecting Groups

Protecting groups are used in organic synthesis to temporarily mask reactive functional groups, allowing selective reactions to occur without interference. These groups are essential for multi-step synthesis processes, ensuring that specific parts of the molecule remain unreactive while other reactions are performed. In this section, you will find a variety of protecting groups suitable for different functional groups, along with reagents for their introduction and removal. At CymitQuimica, we offer a comprehensive range of high-quality protecting groups to facilitate your synthetic strategies.

Subcategories of "Protecting Groups"

Found 447 products of "Protecting Groups"

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  • Chlorodiphenylphosphine

    CAS:
    Formula:C12H10ClP
    Purity:>97.0%(T)
    Color and Shape:Colorless to Light yellow to Light orange clear liquid
    Molecular weight:220.64

    Ref: 3B-C0597

    25g
    47.00€
    100g
    110.00€
    500g
    335.00€
  • 1-Acetyl-1H-1,2,3-triazolo[4,5-b]pyridine

    CAS:
    Formula:C7H6N4O
    Purity:>98.0%(T)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:162.15

    Ref: 3B-A1219

    1g
    190.00€
    5g
    669.00€
  • 2-(2-Nitrophenyl)propan-1-ol

    CAS:
    Formula:C9H11NO3
    Purity:>98.0%(GC)
    Color and Shape:Light yellow to Brown clear liquid
    Molecular weight:181.19

    Ref: 3B-N1133

    1g
    284.00€
    5g
    1,008.00€
  • Di-tert-butyl Dicarbonate (ca. 30% in Toluene)

    CAS:
    Formula:C10H18O5
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:218.25

    Ref: 3B-D3880

    100g
    71.00€
    400g
    159.00€
  • 2,4-Bis(benzyloxy)-6-chloro-1,3,5-triazine

    CAS:
    Formula:C17H14ClN3O2
    Purity:>95.0%(T)(HPLC)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:327.77

    Ref: 3B-B4587

    1g
    172.00€
    200mg
    60.00€
  • 2-Mesitylenesulfonyl Chloride

    CAS:
    Formula:C9H11ClO2S
    Purity:>99.0%(T)
    Color and Shape:White powder to crystal
    Molecular weight:218.70

    Ref: 3B-M0071

    25g
    50.00€
    100g
    114.00€
  • Di-tert-butyldichlorosilane

    CAS:
    Formula:C8H18Cl2Si
    Purity:>95.0%(GC)
    Color and Shape:Colorless to Light yellow clear liquid
    Molecular weight:213.22

    Ref: 3B-D2469

    5g
    228.00€
  • Bis(trimethylsilyl) Sulfate

    CAS:
    Formula:C6H18O4SSi2
    Purity:>98.0%(T)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:242.44

    Ref: 3B-B1245

    5g
    66.00€
    25g
    205.00€
  • Triethylsilane

    CAS:
    Formula:C6H16Si
    Purity:>98.0%(GC)
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:116.28

    Ref: 3B-T0662

    25ml
    31.00€
    250ml
    150.00€
  • Bistrifluoroacetamide

    CAS:
    Formula:C4HF6NO2
    Purity:>98.0%(N)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:209.05

    Ref: 3B-B0986

    5g
    99.00€
    25g
    300.00€
  • Chloro(ethyl)dimethylsilane [Dimethylethylsilylating Agent]

    CAS:
    Formula:C4H11ClSi
    Purity:>97.0%(GC)
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:122.67

    Ref: 3B-D0135

    5g
    58.00€
    25g
    179.00€
  • 2,2,2-Trichloroethyl Chloroformate

    CAS:
    Formula:C3H2Cl4O2
    Purity:>98.0%(GC)
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:211.85

    Ref: 3B-C0795

    25g
    102.00€
    250g
    749.00€
  • 2-(tert-Butoxycarbonylthio)-4,6-dimethylpyrimidine [Boc Agent for Peptides Synthesis]

    CAS:
    Formula:C11H16N2O2S
    Purity:>98.0%(T)
    Color and Shape:White - Yellow Solid Form
    Molecular weight:240.32

    Ref: 3B-B1089

    5g
    29.00€
    25g
    95.00€
  • tert-Butyl 4-(4-Acetyl-2-methoxy-5-nitrophenoxy)butanoate

    CAS:
    Formula:C17H23NO7
    Purity:>98.0%(HPLC)(qNMR)
    Color and Shape:White to Light yellow powder to crystal
    Molecular weight:353.37

    Ref: 3B-B6669

    1g
    163.00€
  • Trifluoroacetic Acid

    CAS:
    Formula:C2HF3O2
    Purity:>99.0%(T)
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:114.02

    Ref: 3B-T0431

    25g
    28.00€
    100g
    45.00€
    500g
    120.00€
  • tert-Butyl 4-[4-(1-Hydroxyethyl)-2-methoxy-5-nitrophenoxy]butanoate

    CAS:
    Formula:C17H25NO7
    Purity:>98.0%(HPLC)(qNMR)
    Color and Shape:White to Light yellow powder to crystal
    Molecular weight:355.39

    Ref: 3B-B6668

    1g
    262.00€
  • S-Ethyl Trifluorothioacetate [Trifluoroacetylating Agent for Peptides Research]

    CAS:
    Formula:C4H5F3OS
    Purity:>98.0%(GC)
    Color and Shape:Colorless to Light yellow clear liquid
    Molecular weight:158.14

    Ref: 3B-T0872

    5ml
    178.00€
  • 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.

    Formula:C10H17NO3
    Purity:Min. 95%
    Color and Shape:Colorless Clear Liquid
    Molecular weight:199.25 g/mol

    Ref: 3D-FB50564

    2g
    To inquire
    -Unit-kgkg
    To inquire
  • H-L-Cys(mdnpe)-OH

    CAS:
    A novel protected cysteine that can be cleaved by photolysis.
    Formula:C12H14N2O6S
    Purity:Min. 95%
    Molecular weight: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-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.
    Formula:C24H27NO6
    Purity:Min. 98 Area-%
    Color and Shape:Powder
    Molecular weight:425.47 g/mol

    Ref: 3D-FF48597

    1g
    258.00€
    2g
    457.00€
    5g
    849.00€
    10g
    1,387.00€
    25g
    2,338.00€
  • tert-Butoxydiphenylchlorosilane (stabilized with CaCO3)

    CAS:
    Formula:C16H19ClOSi
    Purity:>95.0%(GC)
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:290.86

    Ref: 3B-B1436

    25ml
    684.00€
  • 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.
    Formula:C17H17NO3
    Purity:Min. 95%
    Color and Shape:White Powder
    Molecular weight:283.32 g/mol

    Ref: 3D-FF31852

    10g
    158.00€
    25g
    282.00€
    50g
    338.00€
    100g
    470.00€
    250g
    804.00€
  • (Trifluoroacetyl)benzotriazole (mixture of 1H- and 2H- isomers)

    CAS:
    Formula:C8H4F3N3O
    Purity:>98.0%(HPLC)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:215.14

    Ref: 3B-T3174

    1g
    56.00€
    5g
    168.00€
  • 1-(Trifluoroacetyl)imidazole

    CAS:
    Formula:C5H3F3N2O
    Purity:>98.0%(T)
    Color and Shape:Colorless to Yellow to Orange clear liquid
    Molecular weight:164.09

    Ref: 3B-T0670

    5g
    70.00€
    25g
    236.00€
  • 2-Chloroethyl Vinyl Ether (stabilized with MEHQ + Triethanolamine)

    CAS:
    Formula:C4H7ClO
    Purity:>97.0%(GC)
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:106.55

    Ref: 3B-C0174

    25ml
    105.00€
  • 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.
    Formula:C28H25NO2·C4H11N
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:480.64 g/mol

    Ref: 3D-FT48947

    2g
    150.00€
    5g
    268.00€
    10g
    443.00€
    25g
    789.00€
    50g
    1,191.00€
  • 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.
    Formula:C29H36N2O7
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:524.61 g/mol

    Ref: 3D-FF156923

    10g
    7,432.00€
    25g
    To inquire
  • 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.
    Formula:C21H23NO4
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight: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.
    Formula:C29H34N2O8
    Purity:Min. 95%
    Color and Shape:White Powder
    Molecular weight: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€
  • 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.
    Formula:C13H19NO2
    Purity:Min. 95%
    Color and Shape:White Powder
    Molecular weight:221.3 g/mol

    Ref: 3D-FB49021

    5g
    381.00€
    10g
    658.00€
    1kg
    13,237.00€
    25g
    1,091.00€
    2kg
    25,330.00€
  • 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.
    Formula:C39H34N2O5
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:610.7 g/mol

    Ref: 3D-FF72659

    1g
    454.00€
    2g
    592.00€
    5g
    1,021.00€
    1kg
    15,211.00€
    500mg
    290.00€
  • Boc-D-aspartic acid β-9-fluorenylmethyl ester

    CAS:

    Please enquire for more information about Boc-D-aspartic acid beta-9-fluorenylmethyl ester including the price, delivery time and more detailed product information at the technical inquiry form on this page

    Formula:C23H25NO6
    Purity:Min. 95%
    Molecular weight:411.45 g/mol

    Ref: 3D-FB47902

    1g
    To inquire
    2g
    To inquire
    5g
    To inquire
    10g
    To inquire
    500mg
    To inquire
  • Boc-L-aspartic acid a-9-fluorenylmethyl ester

    CAS:
    Boc-L-aspartic acid a-9-fluorenylmethyl ester is a synthetic compound that mimics the structure of acetylcholine. It has been shown to be an efficient method for generating pseudopeptides and cyclic peptides. This compound may be used as a surrogate for acetylcholine in virus research, since it can bind to the same receptor. Boc-L-aspartic acid a-9-fluorenylmethyl ester has also been used to generate monoclonal antibodies that are neutralizing against foot-and-mouth disease viruses.
    Formula:C23H25NO6
    Purity:Min. 97 Area-%
    Molecular weight:411.45 g/mol

    Ref: 3D-FB47900

    1g
    To inquire
    2g
    To inquire
    5g
    To inquire
    10g
    To inquire
    500mg
    To inquire
  • 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.
    Formula:C17H23NO6
    Purity:Min. 98 Area-%
    Color and Shape:Powder
    Molecular weight:337.37 g/mol

    Ref: 3D-FB39384

    1kg
    1,442.00€
    2kg
    1,922.00€
    100g
    378.00€
    250g
    673.00€
    500g
    1,020.00€
  • 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.
    Formula:C18H27NO5
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:337.41 g/mol

    Ref: 3D-FB72175

    25g
    538.00€
    50g
    765.00€
    100g
    1,021.00€
    250g
    2,047.00€
    500g
    3,512.00€
  • Isobutyryl Chloride

    CAS:
    Formula:C4H7ClO
    Purity:>98.0%(GC)(T)
    Color and Shape:Colorless to Light yellow clear liquid
    Molecular weight:106.55

    Ref: 3B-I0115

    25g
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    100g
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    500g
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  • Tetrabutylammonium fluoride solution

    CAS:
    Formula:C16H36FN
    Color and Shape:Liquid
    Molecular weight:261.4621

    Ref: IN-DA0035NQ

    ne
    Discontinued
    Discontinued product
  • Carbonochloridic acid, 2,2,2-trichloroethyl ester

    CAS:
    Formula:C3H2Cl4O2
    Purity:97%
    Color and Shape:Liquid
    Molecular weight:211.8588

    Ref: IN-DA001YVE

    ne
    Discontinued
    Discontinued product
  • 1,3-Propanediol

    CAS:
    Formula:C3H8O2
    Purity:98%
    Color and Shape:Liquid
    Molecular weight:76.0944

    Ref: IN-DA003DLF

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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.

    Formula:C29H36N2O7
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:524.61 g/mol

    Ref: 3D-FF157283

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  • 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%.

    Formula:C22H25NO4S2
    Purity:Min. 98 Area-%
    Color and Shape:Powder
    Molecular weight:431.57 g/mol

    Ref: 3D-FF41067

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  • 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.

    Formula:C13H16N2O5
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:280.28 g/mol

    Ref: 3D-FC39401

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  • 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.

    Formula:C39H34N2O5S
    Purity:Min. 98 Area-%
    Molecular weight:642.76 g/mol

    Ref: 3D-F-6981

    1g
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    ne
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  • 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.

    Formula:C12H15NO5
    Purity:Min. 95%
    Color and Shape:Powder
    Molecular weight:253.25 g/mol

    Ref: 3D-FC19701

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  • Ref: 3B-T3432

    1g
    Discontinued
    Discontinued product
  • 1-(p-Toluenesulfonyl)-1,2,4-triazole

    CAS:
    Formula:C9H9N3O2S
    Purity:>98.0%(HPLC)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:223.25

    Ref: 3B-T3187

    1g
    Discontinued
    5g
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    Discontinued product