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Peptide Coupling Reagents

103
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  • O-(7-Azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate

    Hazmat
    Purity:
    ≥ 99.5% (HPLC)
    Synonym:
    HATU
    Hazmat
    Catalog Number:
    12881
    Purity Limit:
    ≥ 99.5% (HPLC)
    CAS Number:
    148893-10-1
    MDL NO:
    MFCD00274639
    Molecular Formula:
    C10H15F6N6OP
    Molecular Weight:
    380.23
    Specification Sheet SDS

  • O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    HBTU
    Catalog Number:
    02011
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    94790-37-1
    MDL NO:
    MFCD00075445
    Molecular Formula:
    C11H16F6N5OP
    Molecular Weight:
    379.25
    Specification Sheet SDS

  • 1,3-Dicyclohexylcarbodiimide

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    N,N'-Dicyclohexylcarbodiimide
    Hazmat
    Catalog Number:
    00114
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    538-75-0
    MDL NO:
    MFCD00011659
    Molecular Formula:
    C13H22N2
    Molecular Weight:
    206.33
    Specification Sheet SDS

  • N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    EEDQ
    Catalog Number:
    00346
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    16357-59-8
    MDL NO:
    MFCD00006703
    Molecular Formula:
    C14H17NO3
    Molecular Weight:
    247.3
    Specification Sheet SDS

  • N,N'-Diisopropylcarbodiimide

    Hazmat
    Purity:
    ≥ 99% (Assay)
    Synonym:
    DIC
    Hazmat
    Catalog Number:
    00110
    Purity Limit:
    ≥ 99% (Assay)
    CAS Number:
    693-13-0
    MDL NO:
    MFCD00065689
    Molecular Formula:
    C7H14N2
    Molecular Weight:
    126.2
    Specification Sheet SDS

  • 3-(3-Dimethylaminopropyl)-1-ethyl-carbodiimide hydrochloride

    Hazmat
    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    EDC hydrochloride
    Hazmat
    Catalog Number:
    00050
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    25952-53-8
    MDL NO:
    MFCD00012503
    Molecular Formula:
    C8H17N3·HCl
    Molecular Weight:
    191.7
    Specification Sheet SDS

  • Pentachlorophenyl trichloroacetate

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    Trichloroacetic acid pentachlorophenyl ester
    Catalog Number:
    41749
    Purity Limit:
    ≥ 95% (HPLC)
    CAS Number:
    2879-60-9
    MDL NO:
    MFCD00059487
    Molecular Formula:
    C8Cl8O2
    Molecular Weight:
    411.69
    Specification Sheet SDS

  • O-(Benzotriazol-1-yl)-N,N,N',N'-bis(pentamethylene)uronium hexafluorophosphate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    (Benzotriazol-1-yloxy)dipiperidinocarbenium hexafluorophosphate
    Catalog Number:
    41750
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    206752-41-2
    MDL NO:
    MFCD00191769
    Molecular Formula:
    C17H24F6N5OP
    Molecular Weight:
    459.38
    Specification Sheet SDS

  • N-Cyclohexylcarbodiimidomethyl polystyrene resin (cross-linked with 1% DVB, 50-100mesh, 1.5 - 2.0 mmol/g)

    Synonym:
    1-Benzyl-3-cyclohexylcarbodiimide resin (cross-linked with 1% DVB,50-100mesh, 1.5 - 2.0 mmol/g)
    Catalog Number:
    37414
    MDL NO:
    MFCD01867681
    Specification Sheet SDS

  • 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide resin (cross-linked with 1% DVB, 50-100mesh, 1.0-1.3mmol/g)

    Synonym:
    EDC resin (cross-linked with 1% DVB, 50-100mesh, 1.0-1.3mmol/g)
    Catalog Number:
    37415
    MDL NO:
    MFCD01867688
    Specification Sheet SDS

  • Tetrafluoro-1,4-benzoquinone

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    p-Fluoranil
    Catalog Number:
    37190
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    527-21-9
    MDL NO:
    MFCD00001592
    Molecular Formula:
    C6F4O2
    Molecular Weight:
    180.06
    Specification Sheet SDS

  • p-Benzoquinone

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    1,4-Benzoquinone
    Hazmat
    Catalog Number:
    37187
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    106-51-4
    MDL NO:
    MFCD00001591
    Molecular Formula:
    C6H4O2
    Molecular Weight:
    108.1
    Specification Sheet SDS

  • Diphenyl (2,3-Dihydro-2-thioxo-3-benzoxazolyl)phosphonate

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    (2,3-Dihydro-2-thioxo-3-benzoxazolyl)phosphonic acid diphenylester
    Catalog Number:
    37188
    Purity Limit:
    ≥ 98% (Assay by titration)
    CAS Number:
    111160-56-6
    MDL NO:
    MFCD00142793
    Molecular Formula:
    C19H14NO4PS
    Molecular Weight:
    383.36
    Specification Sheet SDS

  • Tris(2,2,2-trifluoroethyl) borate

    Hazmat
    Purity:
    ≥ 95% (NMR)
    Synonym:
    Tris(2,2,2-trifluoroethoxy)boron
    Hazmat
    Catalog Number:
    37191
    Purity Limit:
    ≥ 95% (NMR)
    CAS Number:
    659-18-7
    MDL NO:
    MFCD00093768
    Molecular Formula:
    C6H6BF9O3
    Molecular Weight:
    307.91
    Specification Sheet SDS

  • 4-Trifluoromethylbenzoic anhydride

    Purity:
    ≥ 97% (NMR)
    Catalog Number:
    37180
    Purity Limit:
    ≥ 97% (NMR)
    CAS Number:
    25753-16-6
    MDL NO:
    MFCD00671577
    Molecular Formula:
    C16H8F6O3
    Molecular Weight:
    362.23
    Specification Sheet SDS

  • 2,6-Di-tert-butyl-1,4-benzoquinone

    Purity:
    ≥ 98% (GC)
    Synonym:
    2,6-Di-tert-butyl-p-quinone
    Catalog Number:
    37189
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    719-22-2
    MDL NO:
    MFCD00001601
    Molecular Formula:
    C14H20O2
    Molecular Weight:
    220.31
    Specification Sheet SDS

  • Trifluoromethanesulfonyl chloride

    Hazmat
    Purity:
    ≥ 98.5% (GC)
    Synonym:
    Triflyl chloride
    Hazmat
    Catalog Number:
    37184
    Purity Limit:
    ≥ 98.5% (GC)
    CAS Number:
    421-83-0
    MDL NO:
    MFCD00007451
    Molecular Formula:
    CF3SO2Cl
    Molecular Weight:
    168.51
    Specification Sheet SDS

  • 1-(Trifluoromethanesulfonyl)imidazole

    Purity:
    ≥ 98% (GC)
    Catalog Number:
    37186
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    29540-81-6
    MDL NO:
    MFCD00037891
    Molecular Formula:
    C4H3F3N2O2S
    Molecular Weight:
    200.14
    Specification Sheet SDS

  • Trifluoromethanesulfonanilide

    Hazmat
    Purity:
    ≥ 98% (Assay by titration, HPLC)
    Synonym:
    1,1,1-Trifluoro-N-phenylmethanesulfonamide
    Hazmat
    Catalog Number:
    37185
    Purity Limit:
    ≥ 98% (Assay by titration, HPLC)
    CAS Number:
    456-64-4
    MDL NO:
    MFCD00521820
    Molecular Formula:
    C7H6F3NO2S
    Molecular Weight:
    225.19
    Specification Sheet SDS

  • N-(2-Pyridyl)bis(trifluoromethanesulfonimide)

    Purity:
    ≥ 98% (GC)
    Synonym:
    2-[N,N-Bistrifluoromethylsulfonyl)amino]pyridine
    Catalog Number:
    37182
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    145100-50-1
    MDL NO:
    MFCD00191834
    Molecular Formula:
    C7H4F6N2O4S2
    Molecular Weight:
    358.23
    Specification Sheet SDS

  • 4-Nitrophenyl trifluoromethanesulfonate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    4-Nitrophenyl triflate
    Hazmat
    Catalog Number:
    37183
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    17763-80-3
    MDL NO:
    MFCD00192354
    Molecular Formula:
    C7H4F3NO5S
    Molecular Weight:
    271.17
    Specification Sheet SDS

  • Di(2-pyridyl) thionocarbonate

    Purity:
    ≥ 99.5% (Assay by titration)
    Synonym:
    O,O'-Di-2-pyridyl thiocarbonate
    Catalog Number:
    37181
    Purity Limit:
    ≥ 99.5% (Assay by titration)
    CAS Number:
    96989-50-3
    MDL NO:
    MFCD00074870
    Molecular Formula:
    C11H8N2O2S
    Molecular Weight:
    232.26
    Specification Sheet SDS

  • Diethyl cyanophosphonate

    Hazmat
    Purity:
    ≥ 95% (GC)
    Synonym:
    Cyanophosphonic acid diethyl ester
    Hazmat
    Catalog Number:
    37177
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    2942-58-7
    MDL NO:
    MFCD00010256
    Molecular Formula:
    C5H10NO3P
    Molecular Weight:
    163.11
    Specification Sheet SDS

  • 2-Methyl-6-nitrobenzoic anhydride

    Purity:
    ≥ 98% (Asay by titration)
    Synonym:
    6-Nitro-o-toluic anhydride
    Catalog Number:
    37178
    Purity Limit:
    ≥ 98% (Asay by titration)
    CAS Number:
    434935-69-0
    MDL NO:
    MFCD06797117
    Molecular Formula:
    C16H12N2O7
    Molecular Weight:
    344.28
    Specification Sheet SDS

  • 2,4,6-Trichlorobenzoyl chloride

    Hazmat
    Purity:
    ≥ 99% (Assay by titration, GC)
    Hazmat
    Catalog Number:
    37179
    Purity Limit:
    ≥ 99% (Assay by titration, GC)
    CAS Number:
    4136-95-2
    MDL NO:
    MFCD00075323
    Molecular Formula:
    C7H2Cl4O
    Molecular Weight:
    243.89
    Specification Sheet SDS

  • (Tributylphosphoranylidene)acetonitrile

    Purity:
    ≥ 98% (GC)
    Synonym:
    (Cyanomethylene)tributylphosphorane
    Catalog Number:
    36545
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    157141-27-0
    MDL NO:
    MFCD01321151
    Molecular Formula:
    C14H28NP
    Molecular Weight:
    241.35
    Specification Sheet SDS

  • Acrylic acid N-hydroxysuccinimide ester

    Purity:
    ≥ 99% (GC)
    Synonym:
    N-Acryloxysuccinimide
    Catalog Number:
    36226
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    38862-24-7
    MDL NO:
    MFCD00078261
    Molecular Formula:
    C7H7No4
    Molecular Weight:
    169.13
    Specification Sheet SDS

  • 2-Bromo-1-ethyl-pyridinium tetrafluoroborate

    Purity:
    ≥ 97% (Assay by titration)
    Catalog Number:
    36138
    Purity Limit:
    ≥ 97% (Assay by titration)
    CAS Number:
    878-23-9
    MDL NO:
    MFCD00060046
    Molecular Formula:
    C7H9BBrF4N
    Molecular Weight:
    273.86
    Specification Sheet SDS

  • N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide
    Hazmat
    Catalog Number:
    33523
    Purity Limit:
    ≥ 98% (GC)
    CAS Number:
    1892-57-5
    MDL NO:
    MFCD00044916
    Molecular Formula:
    C8H17N3
    Molecular Weight:
    155.24
    Specification Sheet SDS

  • 4-Dimethylaminopyridine, Prilled

    Hazmat
    Purity:
    ≥ 99.5% (Assay by titration, GC)
    Synonym:
    DMAP
    Hazmat
    Catalog Number:
    33386
    Purity Limit:
    ≥ 99.5% (Assay by titration, GC)
    CAS Number:
    1122-58-3
    MDL NO:
    MFCD00006418
    Molecular Formula:
    C7H10N2
    Molecular Weight:
    122.17
    Specification Sheet SDS

  • N-(5-Chloro-2-pyridyl)bis(trifluoromethanesulfonimide)

    Purity:
    ≥ 99%(GC, HPLC)
    Synonym:
    2-[N,N-Bis(trifluoromethylsulfonyl)amino]-5-chloropyridine
    Catalog Number:
    31548
    Purity Limit:
    ≥ 99%(GC, HPLC)
    CAS Number:
    145100-51-2
    MDL NO:
    MFCD00191833
    Molecular Formula:
    C7H3ClF6N2O4S2
    Molecular Weight:
    392.68
    SDS

  • N-Phenyl-bis(trifluoromethanesulfonimide)

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    1,1,1-Trifluoro-N-phenyl-N-[(trifluoromethyl)sulfonyl]methanesulfonamide
    Catalog Number:
    31457
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    37595-74-7
    MDL NO:
    MFCD00000404
    Molecular Formula:
    C8H5F6NO4S2
    Molecular Weight:
    357.25
    Specification Sheet SDS

  • Pentafluorophenyl 4-nitrobenzenesulfonate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    4-Nitrobenzenesulfonic acid pentafluorophenyl ester
    Catalog Number:
    31391
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    244633-31-6
    MDL NO:
    MFCD05975120
    Molecular Formula:
    C12H4F5NO5S
    Molecular Weight:
    369.22
    Specification Sheet SDS

  • Pentafluorophenyl diphenylphosphinate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Diphenylphosphinic acid pentafluorophenyl ester
    Catalog Number:
    31228
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    138687-69-1
    MDL NO:
    MFCD00192380
    Molecular Formula:
    C18H10F5O2P
    Molecular Weight:
    384.24
    Specification Sheet SDS

  • Di-2-pyridyl carbonate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Carbonic acid di-2-pyridyl ester
    Catalog Number:
    31230
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    1659-31-0
    MDL NO:
    MFCD00191407
    Molecular Formula:
    C11H8N2O3
    Molecular Weight:
    216.19
    Specification Sheet SDS

  • 2-Chloro-1-methylpyridinium p-toluenesulfonate

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    31288
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    7403-46-5
    MDL NO:
    MFCD00011985
    Molecular Formula:
    C7H7O3S·C6H7ClN
    Molecular Weight:
    299.77
    Specification Sheet SDS

  • 2-Chloro-1,3-dimethylimidazolinium hexafluorophosphate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-Chloro-4,5-dihydro-1,3-dimethyl-1H-imidazoliumhexafluorophosphate
    Catalog Number:
    31201
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    101385-69-7
    MDL NO:
    MFCD00191914
    Molecular Formula:
    C5H10ClN2·PF6
    Molecular Weight:
    278.56
    Specification Sheet SDS

  • 2-Chloro-1,3-dimethylimidazolinium chloride

    Purity:
    ≥ 97% (Assay by titration)
    Synonym:
    2-Chloro-4,5-dihydro-1,3-dimethyl-1H-imidazoliumchloride
    Catalog Number:
    31222
    Purity Limit:
    ≥ 97% (Assay by titration)
    CAS Number:
    37091-73-9
    MDL NO:
    MFCD09039290
    Molecular Formula:
    C5H10Cl2N2
    Molecular Weight:
    169.05
    Specification Sheet SDS

  • N,N,N',N'-Tetramethyl-S-(1-oxido-2-pyridyl)thiouronium hexafluorophosphate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    S-(1-Oxido-2-pyridyl)-N,N,N',N'-tetramethylthiuroniumhexafluorophosphate
    Catalog Number:
    31213
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    212333-72-7
    MDL NO:
    MFCD05865266
    Molecular Formula:
    C10H16N3OS·PF6
    Molecular Weight:
    371.28
    Specification Sheet SDS

  • Bromotris(dimethylamino)phosphonium hexafluorophosphate

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Bromotris(N-methylmethanaminato)phosphorushexafluorophosphate
    Hazmat
    Catalog Number:
    31198
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    50296-37-2
    MDL NO:
    MFCD00191864
    Molecular Formula:
    C6H18BrF6N3P2
    Molecular Weight:
    388.07
    Specification Sheet SDS

  • N,N,N',N'Bis(tetramethylene)-O-(N-succinimidyl)uronium hexafluorophosphate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Dipyrrolidino(N-succinimidyloxy)carbeniumhexafluorophosphate
    Catalog Number:
    31212
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    207683-26-9
    MDL NO:
    MFCD00192457
    Molecular Formula:
    C13H20N3O3·PF6
    Molecular Weight:
    411.28
    Specification Sheet SDS

  • O-(Benzotriazol-1-yl)- N,N,N',N'-bis(tetramethylene)uronium hexafluorophosphate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    (Benzotriazol-1-yloxy)dipyrrolidinocarbenium hexafluorophosphate
    Catalog Number:
    31206
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    105379-24-6
    MDL NO:
    MFCD00191770
    Molecular Formula:
    C15H20N5O·PF6
    Molecular Weight:
    431.32
    Specification Sheet SDS

  • 2-Chloro-1,3-dimethylimidazolium tetrafluoroborate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    CIB
    Catalog Number:
    31200
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    153433-26-2
    MDL NO:
    MFCD17976893
    Molecular Formula:
    C5H10ClN2·BF4
    Molecular Weight:
    220.4
    Specification Sheet SDS

  • 1,3-Dicyclohexylcarbodiimide solution (1.0 M in methylene chloride)

    Hazmat
    Synonym:
    N,N'-Dicyclohexylcarbodiimide solution
    Hazmat
    Catalog Number:
    31118
    CAS Number:
    538-75-0
    MDL NO:
    MFCD00011659
    Molecular Formula:
    C13H22N2
    Molecular Weight:
    206.33
    SDS

  • 1,3-Dicyclohexylcarbodiimide solution (50% in THF)

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    N,N'-Dicyclohexylcarbodiimide
    Hazmat
    Catalog Number:
    30785
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    538-75-0
    MDL NO:
    MFCD00011659
    Molecular Formula:
    C13H22N2
    Molecular Weight:
    206.33
    Specification Sheet SDS

  • 4-(4,6-Dimethoxy-1,3,5-triazine-2-yl)-4-methylmorpholinium chloride

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    DMTMM
    Hazmat
    Catalog Number:
    30406
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    3945-69-5
    MDL NO:
    MFCD03613550
    Molecular Formula:
    C10H17N4O3Cl
    Molecular Weight:
    276.72
    Specification Sheet SDS

  • 1-(4-Tolylsulfonyl)imidazole

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    1-Tosyl-1H-imidazole
    Catalog Number:
    26935
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    2232-08-8
    MDL NO:
    MFCD00005285
    Molecular Formula:
    C10H10N2O2S
    Molecular Weight:
    222.27
    Specification Sheet SDS

  • Diphenylphosphorus oxychloride

    Hazmat
    Purity:
    ≥ 98%
    Synonym:
    Diphenylchlorophosphine oxide
    Hazmat
    Catalog Number:
    26798
    Purity Limit:
    ≥ 98%
    CAS Number:
    1499-21-4
    MDL NO:
    MFCD00002077
    Molecular Formula:
    C12H10ClOP
    Molecular Weight:
    236.64
    Specification Sheet SDS
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