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Peptide Chemistry

Peptide Chemistry

621
We’re here to help you turn your ideas into break-throughs with reliable and precise products — from solid phase synthesis to purification and analysis.

  • H-His-Tyr-OH trifluoroacetate salt

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    06090
    CAS Number:
    35979-00-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037859
    Molecular Formula:
    C15H18N4O4 · C2HF3O2
    Molecular Weight:
    432.35
  • H-His-Ala-OH

    Purity:
    ≥ 98% (TLC)
    Catalog Number:
    06077
    CAS Number:
    16874-75-2
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00055955
    Molecular Formula:
    C9H14N4O3
    Molecular Weight:
    226.24
  • Glycine 4-nitroanilide

    Purity:
    ≥ 99% (Assay by titration, HPLC, TLC)
    Synonym:
    Gly-pNA
    Catalog Number:
    06070
    CAS Number:
    1205-88-5
    Purity Limit:
    ≥ 99% (Assay by titration, HPLC, TLC)
    MDL NO:
    MFCD00038175
    Molecular Formula:
    C8H9N3O3
    Molecular Weight:
    195.18
  • Nim-Trityl-L-histidine methyl ester hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-His(Trt)-OMe·HCl
    Catalog Number:
    06075
    CAS Number:
    32946-56-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00237100
    Molecular Formula:
    C26H25N3O2·HCl
    Molecular Weight:
    448.0
  • DL-Alanine β-naphthylamide hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    DL-Ala-βNA·HCl
    Catalog Number:
    06030
    CAS Number:
    74144-49-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00012563
    Molecular Formula:
    C13H14N2O·Cl
    Molecular Weight:
    250.77
  • D-Threonine methyl ester hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    D-Thr-OMe·HCl
    Catalog Number:
    06009
    CAS Number:
    60538-15-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00237276
    Molecular Formula:
    C5H11NO3·HCl
    Molecular Weight:
    169.6
  • cis-L-4-Hydroxyproline

    Purity:
    ≥ 99% (NMR)
    Synonym:
    cis-L-Hyp-OH
    Catalog Number:
    05947
    CAS Number:
    618-27-9
    Purity Limit:
    ≥ 99% (NMR)
    MDL NO:
    MFCD00064319
    Molecular Formula:
    C5H9NO3
    Molecular Weight:
    131.1
  • S-Benzyl-L-cysteine 4-nitroanilide

    Purity:
    ≥ 98% (TLC)
    Synonym:
    L-Cys(Bzl)-pNA
    Catalog Number:
    05915
    CAS Number:
    7436-62-6
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00007302
    Molecular Formula:
    C16H17N3O3S
    Molecular Weight:
    331.43
  • D-allo-Isoleucine

    Purity:
    98.5 - 101.0% (Assay by titration)
    Synonym:
    D-allo-Ile-OH
    Catalog Number:
    05935
    CAS Number:
    1509-35-9
    Purity Limit:
    98.5 - 101.0% (Assay by titration)
    MDL NO:
    MFCD00066445
    Molecular Formula:
    C6H13NO2
    Molecular Weight:
    131.18
  • L-Aspartic acid α-4-nitroanilide hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Asp-pNA·HCl
    Catalog Number:
    05901
    CAS Number:
    154564-03-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD26793471
    Molecular Formula:
    C10H11N3O5·HCl
    Molecular Weight:
    289.72
  • H-Asp-Ala-OH

    Purity:
    ≥ 99% (TLC)
    Catalog Number:
    05893
    CAS Number:
    13433-02-8
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00037231
    Molecular Formula:
    C7H12N2O5
    Molecular Weight:
    204.18
  • L-Aspartic acid dimethyl ester hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Asp(OMe)-OMe·HCl
    Catalog Number:
    05887
    CAS Number:
    32213-95-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00038878
    Molecular Formula:
    C6H11NO4·HCl
    Molecular Weight:
    197.66
  • L-Aspartic acid β-methyl ester hydrochloride

    Purity:
    ≥ 99% (Assay)
    Synonym:
    L-Asp(OMe)-OH·HCl
    Catalog Number:
    05886
    CAS Number:
    16856-13-6
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00038972
    Molecular Formula:
    C5H9NO4·HCl
    Molecular Weight:
    183.64
  • L-Asparagine 7-amido-4-methylcoumarin trifluoroacetate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Asn-AMC·TFA
    Catalog Number:
    05878
    CAS Number:
    115047-90-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00078916
    Molecular Formula:
    C14H15N3O4·C2HO2F3
    Molecular Weight:
    403.32
  • Arg-Arg-OH·AcOH

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    05860
    CAS Number:
    15483-27-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00039106
    Molecular Formula:
    C12H26N8O3·C2H4O2
    Molecular Weight:
    390.44
  • L-Arginine 7-amido-4-methylcoumarin dihydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Arg-AMC·2HCl
    Catalog Number:
    05859
    CAS Number:
    113712-08-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00155578
    Molecular Formula:
    C16H21N5O3·2HCl
    Molecular Weight:
    404.3
  • L-allo-Threonine methyl ester hydrochloride

    Purity:
    ≥ 98% (NMR)
    Synonym:
    allo-L-Thr-OMe·HCl
    Catalog Number:
    05847
    CAS Number:
    79617-27-9
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00237766
    Molecular Formula:
    C5H11NO3·HCl
    Molecular Weight:
    169.64
  • Ala-Trp-OH

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Alanyl-L-tryptophan
    Catalog Number:
    05842
    CAS Number:
    16305-75-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00037948
    Molecular Formula:
    C14H17N3O3
    Molecular Weight:
    275.31
  • L-Alanine 7-amido-4-methylcoumarin trifluoroacetate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Ala-AMC·TFA
    Catalog Number:
    05819
    CAS Number:
    96594-10-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00037394
    Molecular Formula:
    C13H14N2O3·C2HO2F3
    Molecular Weight:
    360.23
  • H-Ala-His-OH

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    05827
    CAS Number:
    3253-17-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037853
    Molecular Formula:
    C9H14N4O3
    Molecular Weight:
    226.24
  • DL-α-Methyltryptophan

    Purity:
    ≥ 99% (TLC)
    Synonym:
    α-Me-DL-Trp-OH
    Catalog Number:
    05777
    CAS Number:
    153-91-3
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00038416
    Molecular Formula:
    C12H14N2O2
    Molecular Weight:
    218.22
  • Fmoc-β-cyclopropyl-L-alanine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-β-cyclopropyl-L-Ala-OH
    Catalog Number:
    05766
    CAS Number:
    214750-76-2
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00798640
    Molecular Formula:
    C21H21NO4
    Molecular Weight:
    351.3
  • Nα-Fmoc-Nδ-pyrazinylcarbonyl-L-ornithine

    Purity:
    ≥ 98% (HPLC, TLC)
    Synonym:
    Fmoc-L-Orn(pyrazinylcarbonyl)-OH
    Catalog Number:
    05748
    CAS Number:
    201046-61-9
    Purity Limit:
    ≥ 98% (HPLC, TLC)
    MDL NO:
    MFCD00672336
    Molecular Formula:
    C25H24N4O5
    Molecular Weight:
    460.5
  • Fmoc-O-methyl-D-threonine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-D-Thr(Me)-OH
    Catalog Number:
    05710
    CAS Number:
    1301706-86-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD01632052
    Molecular Formula:
    C20H21NO5
    Molecular Weight:
    355.5
  • Nα-Fmoc-Nε-allyloxycarbonyl-D-lysine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-Nε-allyloxycarbonyl-D-lysine
    Catalog Number:
    05702
    CAS Number:
    214750-75-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00798639
    Molecular Formula:
    C25H28N2O6
    Molecular Weight:
    452.51
  • Fmoc-S-tert-butylthio-D-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Cys(StBu)-OH
    Catalog Number:
    05695
    CAS Number:
    501326-55-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01632050
    Molecular Formula:
    C22H25NO4S2
    Molecular Weight:
    431.6
  • Fmoc-D-aspartic acid β-2-phenylisopropyl ester

    Purity:
    ≥ 99.8% (Chiral HPLC)
    Synonym:
    Fmoc-D-Asp(2-phenylisopropyloxy)-OH
    Catalog Number:
    05688
    CAS Number:
    214852-39-8
    Purity Limit:
    ≥ 99.8% (Chiral HPLC)
    MDL NO:
    MFCD01632049
    Molecular Formula:
    C28H27NO6
    Molecular Weight:
    473.53
  • Fmoc-L-aspartic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Asp-OH
    Catalog Number:
    05681
    CAS Number:
    119062-05-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00237654
    Molecular Formula:
    C19H17NO6
    Molecular Weight:
    355.35
  • Nα,im-Bis-Fmoc-D-histidine

    Purity:
    ≥ 98% (TLC)
    Synonym:
    Fmoc-D-His(Fmoc)-OH
    Catalog Number:
    05698
    CAS Number:
    200926-18-7
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00077057
    Molecular Formula:
    C36H29N3O6
    Molecular Weight:
    599.6
  • Nα-Fmoc-Nω,Nω'-bis-Boc-D-arginine

    Purity:
    ≥ 98%
    Synonym:
    Fmoc-D-Arg(Boc)2-OH
    Catalog Number:
    05686
    CAS Number:
    214852-34-3
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00798643
    Molecular Formula:
    C31H40N4O8
    Molecular Weight:
    596.7
  • Boc-L-serine tert-butyl ester

    Purity:
    ≥ 97% (Assay)
    Synonym:
    Boc-L-Ser-OtBu
    Catalog Number:
    05601
    CAS Number:
    7738-22-9
    Purity Limit:
    ≥ 97% (Assay)
    MDL NO:
    MFCD00190832
    Molecular Formula:
    C12H23NO5
    Molecular Weight:
    261.32
  • Boc-Nα-methyl-Nω-(4-methoxy-2,3,6-trimethylbenzenesulfonyl)-L-arginine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-N-Me-L-Arg(Mtr)-OH
    Catalog Number:
    05561
    CAS Number:
    125602-26-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00236863
    Molecular Formula:
    C22H36N4O7S
    Molecular Weight:
    500.62
  • Boc-O-tert-butyl-D-serine dicyclohexylammonium salt

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Ser(tBu)-OH·DCHA
    Catalog Number:
    05519
    CAS Number:
    248921-67-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00236872
    Molecular Formula:
    C12H23NO5·C12H23N
    Molecular Weight:
    442.5
  • Boc-D-aspartic acid α-amide

    Purity:
    ≥ 98%
    Synonym:
    Boc-D-Asp-NH2
    Catalog Number:
    05502
    CAS Number:
    200282-47-9
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00151866
    Molecular Formula:
    C9H16N2O5
    Molecular Weight:
    232.24
  • Nα-Boc-D-lysine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Lys-OH
    Catalog Number:
    05507
    CAS Number:
    106719-44-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00076956
    Molecular Formula:
    C11H22N2O4
    Molecular Weight:
    246.3
  • Boc-D-glutamic acid α-tert-butyl ester

    Purity:
    ≥ 98% (NMR)
    Synonym:
    Boc-D-Glu-OtBu
    Catalog Number:
    05493
    CAS Number:
    73872-71-6
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00076926
    Molecular Formula:
    C14H25NO6
    Molecular Weight:
    303.36
  • Boc-S-trityl-D-cysteine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Cys(Trt)-OH
    Catalog Number:
    05484
    CAS Number:
    87494-13-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00236839
    Molecular Formula:
    C27H29NO4S
    Molecular Weight:
    463.57
  • Z-dehydroalanine

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    Z-dehydro-Ala-OH
    Catalog Number:
    05397
    CAS Number:
    39692-63-2
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00056722
    Molecular Formula:
    C11H11NO4
    Molecular Weight:
    221.2
  • Nα,Nω,Nω'-Tris-Boc-L-arginine

    Purity:
    99 - 101% (Assay by titration)
    Synonym:
    Boc-L-Arg(Boc)2-OH
    Catalog Number:
    05452
    CAS Number:
    97745-69-2
    Purity Limit:
    99 - 101% (Assay by titration)
    MDL NO:
    MFCD00236819
    Molecular Formula:
    C21H38N4O8
    Molecular Weight:
    474.56
  • D-Pyroglutamic acid

    Purity:
    ≥ 99% (Assay)
    Synonym:
    D-Pyr-OH
    Catalog Number:
    05374
    CAS Number:
    4042-36-8
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00066212
    Molecular Formula:
    C5H7NO3
    Molecular Weight:
    129.1
  • Benzyl-L-proline

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Bzl-L-Pro-OH
    Catalog Number:
    05315
    CAS Number:
    31795-93-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00235894
    Molecular Formula:
    C12H15NO2
    Molecular Weight:
    205.3
  • Nα-Acetyl-L-Histidine·H2O

    Purity:
    ≥ 91% (Titration)
    Synonym:
    Ac-L-His-OH·H2O
    Catalog Number:
    05363
    CAS Number:
    39145-52-3
    Purity Limit:
    ≥ 91% (Titration)
    MDL NO:
    MFCD00149320
    Molecular Formula:
    C8H11N3O3·H2O
    Molecular Weight:
    215.21
  • Nα-Fmoc-Nim-4-toluenesylfonyl-L-histidine

    Purity:
    ≥ 99% (Chiral HPLC, HPLC, TLC)
    Synonym:
    Fmoc-L-His(Tos)-OH
    Catalog Number:
    05348
    CAS Number:
    112380-10-6
    Purity Limit:
    ≥ 99% (Chiral HPLC, HPLC, TLC)
    MDL NO:
    MFCD00144353
    Molecular Formula:
    C28H25N3O6S
    Molecular Weight:
    531.59
  • Nα-Boc-L-tryptophan methyl ester

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Trp-OMe
    Catalog Number:
    05319
    CAS Number:
    33900-28-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD01075094
    Molecular Formula:
    C17H22N2O4
    Molecular Weight:
    318.4
  • Fmoc-O-tert-butyl-L-tyrosine N-hydroxysuccinimide ester

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Tyr(tBu)-OSu
    Catalog Number:
    05322
    CAS Number:
    155892-27-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01632038
    Molecular Formula:
    C32H32N2O7
    Molecular Weight:
    556.6
  • Fmoc-12-aminododecanoic acid

    Purity:
    ≥ 95% (HPLC)
    Synonym:
    Fmoc-12-Ado-OH
    Catalog Number:
    05103
    CAS Number:
    128917-74-8
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD00235888
    Molecular Formula:
    C27H35NO4
    Molecular Weight:
    437.6
  • Fmoc-4-benzoyl-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Bpa-OH
    Catalog Number:
    05115
    CAS Number:
    117666-96-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00151937
    Molecular Formula:
    C31H25NO5
    Molecular Weight:
    491.5
  • Nα-Fmoc-Nε-trimethylsilylethoxycarbonyl-L-lysine

    Purity:
    ≥ 99% (HPLC, TLC)
    Synonym:
    Fmoc-L-Lys(Teoc)-OH
    Catalog Number:
    05088
    CAS Number:
    122903-68-8
    Purity Limit:
    ≥ 99% (HPLC, TLC)
    MDL NO:
    MFCD01075098
    Molecular Formula:
    C27H36N2O6Si
    Molecular Weight:
    512.7
  • Fmoc-1-aminocyclopropane-1-carboxylic acid

    Purity:
    98.5 - 100.5% (Assay by titration)
    Synonym:
    Fmoc-Acpc-OH
    Catalog Number:
    05109
    CAS Number:
    126705-22-4
    Purity Limit:
    98.5 - 100.5% (Assay by titration)
    MDL NO:
    MFCD00190873
    Molecular Formula:
    C19H17NO4
    Molecular Weight:
    323.3
  • Fmoc-pentafluoro-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Phe(F)5-OH
    Catalog Number:
    05134
    CAS Number:
    198545-85-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672558
    Molecular Formula:
    C24H16F5NO4
    Molecular Weight:
    477.4