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Peptide Synthesis Reagents

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  • 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
  • Di-tert-butyl dicarbonate, 1.0 M solution in THF

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Boc anhydride, 1.0M solution in THF
    Hazmat
    Catalog Number:
    26505
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    24424-99-5
    MDL NO:
    MFCD00008805
    Molecular Formula:
    C10H18O5
    Molecular Weight:
    218.25
  • Di-tert-butyl dicarbonate, 2.0M solution in THF

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Boc anhydride, 2.0M solution in THF
    Hazmat
    Catalog Number:
    26506
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    24424-99-5
    MDL NO:
    MFCD00008805
    Molecular Formula:
    C10H18O5
    Molecular Weight:
    218.25
  • 1-Hydroxybenzotriazole hydrate wetted with not less than 20 wt. % water

    Hazmat
    Purity:
    ≥ 99% (HPLC)
    Synonym:
    HOBt hydrate
    Hazmat
    Catalog Number:
    24755
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    123333-53-9
    MDL NO:
    MFCD00065690
    Molecular Formula:
    C6H5N3O·xH2O
    Molecular Weight:
    135.12
  • Diethyl dicarbonate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    Diethyl pyrocarbonate
    Hazmat
    Catalog Number:
    24544
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    1609-47-8
    MDL NO:
    MFCD00009106
    Molecular Formula:
    C6H10O5
    Molecular Weight:
    162.14
  • Phenyl isothiocyanate

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    24479
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    103-72-0
    MDL NO:
    MFCD00004798
    Molecular Formula:
    C7H5NS
    Molecular Weight:
    135.19
  • O-(6-Chlorobenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    1-[Bis(dimethylamino)methylen]-5-chlorobenzotriazolium 3-oxidetetrafluoroborate
    Catalog Number:
    23208
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    330641-16-2
    MDL NO:
    MFCD04973270
    Molecular Formula:
    C11H15BClF4N5O
    Molecular Weight:
    355.53
  • Succinimidyl iodoacetate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    SIA
    Catalog Number:
    22998
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    39028-27-8
    MDL NO:
    MFCD00058451
    Molecular Formula:
    C6H6NO4I
    Molecular Weight:
    283.02
  • Catalog Number:
    15129
    Purity Limit:
    ≥ 98% (Assay)
    CAS Number:
    137156-41-3
    MDL NO:
    MFCD06796746
    Molecular Formula:
    C5H7N3O3
    Molecular Weight:
    157.13
  • 1,1'-Carbonyldi(1,2,4-triazole)

    Purity:
    ≥ 98%
    Synonym:
    CDT
    Catalog Number:
    14114
    Purity Limit:
    ≥ 98%
    CAS Number:
    41864-22-6
    MDL NO:
    MFCD00043399
    Molecular Formula:
    C5H4N6O
    Molecular Weight:
    164.13
  • 4-Nitrobenzyl chloroformate

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4-Nitrobenzyl chlorocarbonate
    Hazmat
    Catalog Number:
    12968
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    4457-32-3
    MDL NO:
    MFCD00007375
    Molecular Formula:
    C8H6ClNO4
    Molecular Weight:
    215.6
  • Chloro-dipyrrolidinocarbenium hexafluorophosphate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    PyClU
    Catalog Number:
    12939
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    135540-11-3
    MDL NO:
    MFCD00191333
    Molecular Formula:
    C9H16ClF6N2P
    Molecular Weight:
    332.66
  • Diallyl pyrocarbonate

    Purity:
    ≥ 95% (GC)
    Synonym:
    (Alloc)2O
    Catalog Number:
    12935
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    115491-93-5
    MDL NO:
    MFCD00077721
    Molecular Formula:
    C8H10O5
    Molecular Weight:
    186.17
  • Bis(4-nitrophenyl)carbonate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    4-Nitrophenyl carbonate
    Catalog Number:
    12948
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    5070-13-3
    MDL NO:
    MFCD00007322
    Molecular Formula:
    C13H8N2O7
    Molecular Weight:
    304.21
  • Dibenzyl dicarbonate

    Purity:
    ≥ 96% (HPLC)
    Synonym:
    Dibenzyl pyrocarbonate
    Catalog Number:
    12933
    Purity Limit:
    ≥ 96% (HPLC)
    CAS Number:
    31139-36-3
    MDL NO:
    MFCD00043124
    Molecular Formula:
    C16H14O5
    Molecular Weight:
    286.29
  • N,N'-Di-tert-butylcarbodiimide

    Hazmat
    Purity:
    ≥ 99% (GC)
    Hazmat
    Catalog Number:
    12908
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    691-24-7
    MDL NO:
    MFCD00010231
    Molecular Formula:
    C9H18N2
    Molecular Weight:
    154.26
  • O-(N-Succinimidyl)-N,N,N',N'-tetramethyl uronium hexafluoro phosphate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    N,N,N',N'-Tetramethyl-O-(N-succinimidyl)uroniumhexafluorophosphate
    Catalog Number:
    12880
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    265651-18-1
    MDL NO:
    MFCD01863753
    Molecular Formula:
    C9H16F6N3O3P
    Molecular Weight:
    359.21
  • N-Hydroxysulfosuccinimide sodium salt

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Hydroxy-2,5-dioxo-pyrrolidine-3-sulfonic-acid sodium salt
    Catalog Number:
    12831
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    106627-54-7
    MDL NO:
    MFCD00043100
    Molecular Formula:
    C4H4NNaO6S
    Molecular Weight:
    217.13
  • Oxalic acid diimidazolide

    Purity:
    ≥ 98% (Assay by Titration)
    Synonym:
    1,1'-Oxalyldi-imidazole
    Catalog Number:
    12829
    Purity Limit:
    ≥ 98% (Assay by Titration)
    CAS Number:
    18637-83-7
    MDL NO:
    MFCD00043067
    Molecular Formula:
    C8H6N4O2
    Molecular Weight:
    190.16
  • 3-(Diethoxy-phosphoryloxy)-3H-benzo[d][1,2,3]triazin-4-one

    Purity:
    ≥ 98.5% (HPLC)
    Synonym:
    DEPBT
    Catalog Number:
    11460
    Purity Limit:
    ≥ 98.5% (HPLC)
    CAS Number:
    165534-43-0
    MDL NO:
    MFCD01236967
    Molecular Formula:
    C11H14N3O5P
    Molecular Weight:
    299.22
  • L-Thiazolidin-2-one-4-carboxylic acid

    Purity:
    ≥ 95% (NMR)
    Synonym:
    L-2-Oxothiazolidine-4-carboxylic acid
    Catalog Number:
    06280
    Purity Limit:
    ≥ 95% (NMR)
    CAS Number:
    19771-63-2
    MDL NO:
    MFCD00066092
    Molecular Formula:
    C4H5NO3S
    Molecular Weight:
    147.15
  • Nα-Z-hydrazide

    Purity:
    ≥ 98.0% (HPLC)
    Synonym:
    Z-NHNH2
    Catalog Number:
    05288
    Purity Limit:
    ≥ 98.0% (HPLC)
    CAS Number:
    5331-43-1
    MDL NO:
    MFCD00041890
    Molecular Formula:
    C8H10N2O2
    Molecular Weight:
    166.18
  • Tetramethylfluoroformamidiniun hexafluorophosphate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    TFFH
    Catalog Number:
    05189
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    164298-23-1
    MDL NO:
    MFCD02684443
    Molecular Formula:
    C5H12N2PF7
    Molecular Weight:
    264.12
  • N-(9-Fluorenylmethoxycarbonyl)amide

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-NH2
    Catalog Number:
    05188
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    84418-43-9
    MDL NO:
    MFCD00237376
    Molecular Formula:
    C15H13NO2
    Molecular Weight:
    239.27
  • Catalog Number:
    04884
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    136849-72-4
    MDL NO:
    MFCD00192127
    Molecular Formula:
    C10H17BF4N4O3
    Molecular Weight:
    328.08
  • 2-Chloro-1-methylpyridinium iodide

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Mukaiyama's reagent
    Catalog Number:
    04881
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    14338-32-0
    MDL NO:
    MFCD00011984
    Molecular Formula:
    C6H7NClI
    Molecular Weight:
    255.49
  • Chlorotripyrrolidinophosphonium hexafluorophosphate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    PyCloP
    Catalog Number:
    04880
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    133894-48-1
    MDL NO:
    MFCD00210035
    Molecular Formula:
    C12H24F6N3P2Cl
    Molecular Weight:
    421.74
  • 2-Acetyldimedone

    Purity:
    ≥ 98% (Assay)
    Synonym:
    Dde-OH
    Catalog Number:
    04320
    Purity Limit:
    ≥ 98% (Assay)
    CAS Number:
    1755-15-3, 94142-97-9
    MDL NO:
    MFCD00467663
    Molecular Formula:
    C10H14O3
    Molecular Weight:
    182.2
  • 1-Hydroxy-6-(trifluoromethyl)benzotriazole

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    6-(Trifluoro-methyl)-HOBT
    Hazmat
    Catalog Number:
    03533
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    26198-21-0
    MDL NO:
    MFCD00038806
    Molecular Formula:
    C7H4N3OF3
    Molecular Weight:
    203.12
  • N-Hydroxyphthalimide

    Purity:
    ≥ 99% (Assay)
    Synonym:
    2-Hydroxy-1H-isoindole-1,3(2H-dione
    Catalog Number:
    02322
    Purity Limit:
    ≥ 99% (Assay)
    CAS Number:
    524-38-9
    MDL NO:
    MFCD00005891
    Molecular Formula:
    C8H5NO3
    Molecular Weight:
    163.13
  • 2,4,5-Trichlorophenol

    Hazmat
    Purity:
    ≥ 95% (GC)
    Synonym:
    2,4,5-Trichloro-1-hydroxy-benzene
    Hazmat
    Catalog Number:
    02361
    Purity Limit:
    ≥ 95% (GC)
    CAS Number:
    95-95-4
    MDL NO:
    MFCD00002170
    Molecular Formula:
    C6H3Cl3O
    Molecular Weight:
    197.45
  • Catalog Number:
    02357
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    105832-38-0
    MDL NO:
    MFCD00077875
    Molecular Formula:
    C9H16O3N3BF4
    Molecular Weight:
    301.1
  • 4-Nitrophenyl trifluoroacetate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Trifluoroacetic acid 4-nitrophenyl ester
    Catalog Number:
    02341
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    658-78-6
    MDL NO:
    MFCD00007324
    Molecular Formula:
    C8H4F3NO4
    Molecular Weight:
    235.12
  • 2-(2-Pyridon-1yl)-1,1,3,3-tetramethyluronium tetrafluoroborate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    TPTU/TOPPyU
    Catalog Number:
    02355
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    125700-71-2
    MDL NO:
    MFCD00075475
    Molecular Formula:
    C10H16BF4N3O2
    Molecular Weight:
    297.06
  • 4-Pyrrolidinopyridine

    Hazmat
    Purity:
    ≥ 98% (Assay)
    Synonym:
    1-(4-Pyridyl)pyrrolidine
    Hazmat
    Catalog Number:
    02356
    Purity Limit:
    ≥ 98% (Assay)
    CAS Number:
    2456-81-7
    MDL NO:
    MFCD00006415
    Molecular Formula:
    C9H12N2
    Molecular Weight:
    148.2
  • Catalog Number:
    02343
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    125700-73-4
    MDL NO:
    MFCD00167753
    Molecular Formula:
    C14H20BF4N3O3
    Molecular Weight:
    365.14
  • N,N'-Disuccinimidyl carbonate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    DSC
    Catalog Number:
    02309
    Purity Limit:
    ≥ 98% (HPLC)
    CAS Number:
    74124-79-1
    MDL NO:
    MFCD00009767
    Molecular Formula:
    C9H8N2O7
    Molecular Weight:
    256.2
  • N-Hydroxy-5-norbornene-endo-2,3-dicarboximide

    Purity:
    ≥ 98% (Assay)
    Synonym:
    HONB
    Catalog Number:
    02321
    Purity Limit:
    ≥ 98% (Assay)
    CAS Number:
    21715-90-2
    MDL NO:
    MFCD00065691
    Molecular Formula:
    C9H9NO3
    Molecular Weight:
    179.2
  • Heptafluorobutyric acid

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    HFBA
    Hazmat
    Catalog Number:
    02316
    Purity Limit:
    ≥ 99% (GC)
    CAS Number:
    375-22-4
    MDL NO:
    MFCD00004171
    Molecular Formula:
    C4HF7O2
    Molecular Weight:
    214.04
  • 2-tert-Butyloxycarbonyloxyimino-2-phenyl acetonitrile

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-ON
    Catalog Number:
    02288
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    58632-95-4
    MDL NO:
    MFCD00001863
    Molecular Formula:
    C13H14N2O3
    Molecular Weight:
    246.3
  • N,N-Dimethylacetamide, anhydrous

    Hazmat
    Purity:
    ≥ 99% (Assay)
    Synonym:
    Acetic acid dimethylamide, anhydrous
    Hazmat
    Catalog Number:
    02302
    Purity Limit:
    ≥ 99% (Assay)
    CAS Number:
    127-19-5
    MDL NO:
    MFCD00008686
    Molecular Formula:
    C4H9NO
    Molecular Weight:
    87.12
  • Catalog Number:
    02297
    Purity Limit:
    ≥ 96% (NMR)
    CAS Number:
    2491-17-0
    MDL NO:
    MFCD00011979
    Molecular Formula:
    C14H26N3O·C7H7O3S
    Molecular Weight:
    423.6
  • N,N-Bis(2-oxo-3-oxazolidinyl)phosphinic chloride

    Hazmat
    Purity:
    ≥ 98% (Assay)
    Synonym:
    BOP-Cl
    Hazmat
    Catalog Number:
    02280
    Purity Limit:
    ≥ 98% (Assay)
    CAS Number:
    68641-49-6
    MDL NO:
    MFCD00010077
    Molecular Formula:
    C6H8ClN2O5P
    Molecular Weight:
    254.6
  • Pyridine, super dry

    Hazmat
    Purity:
    ≥ 99.5% (GC)
    Hazmat
    Catalog Number:
    02006
    Purity Limit:
    ≥ 99.5% (GC)
    CAS Number:
    110-86-1
    MDL NO:
    MFCD00011732
    Molecular Formula:
    C6H5N
    Molecular Weight:
    79.1
  • 3-Nitro-1H-1,2,4-triazole

    Purity:
    ≥ 99% (Assay)
    Catalog Number:
    00941
    Purity Limit:
    ≥ 99% (Assay)
    CAS Number:
    24807-55-4
    MDL NO:
    MFCD00009749
    Molecular Formula:
    C2H2N4O2
    Molecular Weight:
    114.1
  • Pyridine

    Hazmat
    Grade:
    ACS reagent
    Purity:
    ≥ 99.0% (GC)
    Hazmat
    Catalog Number:
    00762
    Grade:
    ACS reagent
    Purity Limit:
    ≥ 99.0% (GC)
    CAS Number:
    110-86-1
    MDL NO:
    MFCD00011732
    Molecular Formula:
    C5H5N
    Molecular Weight:
    79.1
  • 2-Fluoro-1-methylpyridinium 4-toluenesulfonate

    Purity:
    ≥ 98% (NMR)
    Synonym:
    1 Methyl-2-fluoropyridinium tosylate
    Catalog Number:
    01278
    Purity Limit:
    ≥ 98% (NMR)
    CAS Number:
    58086-67-2
    MDL NO:
    MFCD00011983
    Molecular Formula:
    C6H7FN·C7H7O3S
    Molecular Weight:
    283.3
  • 1H-1,2,4-Triazole

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Pyrrodiazole
    Catalog Number:
    00942
    Purity Limit:
    ≥ 99% (HPLC)
    CAS Number:
    288-88-0
    MDL NO:
    MFCD00005228
    Molecular Formula:
    C2H3N3
    Molecular Weight:
    69.07
  • Catalog Number:
    00932
    CAS Number:
    54230-60-3
    MDL NO:
    MFCD00014089
    Molecular Formula:
    C17H25N3O2S
    Molecular Weight:
    335.5