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Peptide Chemistry

Peptide Chemistry

6119
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.

  • 11-Maleimidoundecanoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    KMUA
    Catalog Number:
    23092
    CAS Number:
    57079-01-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00941279
    Molecular Formula:
    C15H23NO4
    Molecular Weight:
    281.35
  • 11-Maleimidoundecanoic acid sulfo-NHS

    Purity:
    99%
    Synonym:
    Sulfo-KMUS
    Catalog Number:
    23082
    CAS Number:
    211236-68-9
    Purity Limit:
    99%
    MDL NO:
    MFCD01075057
    Molecular Formula:
    C19H25N2O9SNa
    Molecular Weight:
    485.47
  • 11-Maleimidoundecanoic acid hydrazide

    Purity:
    99%
    Synonym:
    KMUH
    Catalog Number:
    23087
    CAS Number:
    359436-62-7
    Purity Limit:
    99%
    MDL NO:
    MFCD01863411
    Molecular Formula:
    C15H25N3O3
    Molecular Weight:
    295.38
  • Nα-Boc-DL-diaminopropionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-DL-Dap-OH
    Catalog Number:
    22768
    CAS Number:
    159002-17-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00736752
    Molecular Formula:
    C8H16N2O4
    Molecular Weight:
    204.23
  • Fmoc-D-Glutamic acid γ-cyclohexyl ester

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-D-Glu(OcHex)-OH
    Catalog Number:
    22762
    CAS Number:
    204251-25-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00273450
    Molecular Formula:
    C26H29NO6
    Molecular Weight:
    451.52
  • ε-N-carboxy[2H2]methyl-L-Lysine

    Purity:
    ≥ 99% (TLC)
    Synonym:
    ε-N-carboxy[2H2]methyl-Lys-OH
    Catalog Number:
    22726
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD09952611
    Molecular Formula:
    C8H14D2N2O4
    Molecular Weight:
    206.24
  • Catalog Number:
    22704
    CAS Number:
    204514-23-8
    Purity Limit:
    ≥ 95% (HPLC)
    MDL NO:
    MFCD09264198
    Molecular Formula:
    C13H23NO4
    Molecular Weight:
    257.33
  • Catalog Number:
    22705
    CAS Number:
    220145-22-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD09264208
    Molecular Formula:
    C23H25NO4
    Molecular Weight:
    379.46
  • 1-Boc-1,4-diazepane hydrochloride

    Purity:
    ≥ 99% (Assay by Titration)
    Synonym:
    Boc-homopiperazine hydrochloride
    Catalog Number:
    22699
    CAS Number:
    1049743-87-4
    Purity Limit:
    ≥ 99% (Assay by Titration)
    MDL NO:
    MFCD07781257
    Molecular Formula:
    C10H21N2O2Cl
    Molecular Weight:
    236.74
  • (Boc-4-aminomethyl)piperidine hydrochloride

    Purity:
    ≥ 99% (TLC)
    Synonym:
    Piperidin-4-ylmethyl-carbamic acid tert-butyl ester hydrochloride
    Catalog Number:
    22696
    CAS Number:
    1049727-98-1, 135632-53-0
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD04112674
    Molecular Formula:
    C11H24N2O2Cl2
    Molecular Weight:
    287.23
  • Catalog Number:
    22694
    CAS Number:
    359629-16-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD03093510
    Molecular Formula:
    C11H23N2O2Cl
    Molecular Weight:
    250.77
  • (3S)-4-Boc-1-carboxymethyl-3-methyl-piperazin-2-one

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    (S-4-Carboxymethyl-2-methyl-3-oxo-piperazine-1-carboxylic acid tert-butyl ester
    Catalog Number:
    22688
    CAS Number:
    959571-65-4
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD06656456
    Molecular Formula:
    C12H20N2O5
    Molecular Weight:
    272.3
  • (R,S)-4-Boc-3-carboxymethyl-piperazin-2-one

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    2-Carboxymethyl-3-oxo-piperazine-1-carboxylic acid tert-butyl ester
    Catalog Number:
    22690
    CAS Number:
    863307-54-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD06656452
    Molecular Formula:
    C11H18N2O5
    Molecular Weight:
    258.27
  • (R,S)-1-Amino-2-phenylethyl-phosphonic acid diphenyl ester hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    (R,S-PheP(OPh)2·HCl
    Catalog Number:
    22678
    CAS Number:
    1171995-49-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD09998735
    Molecular Formula:
    C20H20NO3P·HCl
    Molecular Weight:
    389.82
  • N-(Fmoc-8-amino-3,6-dioxa-octyl)succinamic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-(PEG)2-Suc-OH
    Catalog Number:
    22666
    CAS Number:
    613245-91-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06656466
    Molecular Formula:
    C25H30N2O7
    Molecular Weight:
    470.52
  • tetra-Boc-spermine-5-carboxylic acid

    Purity:
    ≥ 97% (NMR)
    Synonym:
    Boc4-Sper-COOH
    Catalog Number:
    22653
    CAS Number:
    119798-08-2
    Purity Limit:
    ≥ 97% (NMR)
    MDL NO:
    MFCD06656442
    Molecular Formula:
    C31H58N4O10
    Molecular Weight:
    646.82
  • Boc-N-methyl-tranexamic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    trans-4-(Boc-methylaminomethyl)cyclohexane carboxylic acid
    Catalog Number:
    22644
    CAS Number:
    165947-29-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD06656432
    Molecular Formula:
    C14H25NO4
    Molecular Weight:
    271.36
  • Fmoc-N-methyl-tranexamic acid

    Purity:
    ≥ 98.5% (HPLC)
    Synonym:
    trans-4-(Fmoc-methylaminomethyl)cyclohexane carboxylic acid
    Catalog Number:
    22645
    CAS Number:
    173690-50-1
    Purity Limit:
    ≥ 98.5% (HPLC)
    MDL NO:
    MFCD06656462
    Molecular Formula:
    C24H27NO4
    Molecular Weight:
    393.48
  • Boc-methylaminooxyacetic acid·DCHA

    Purity:
    ≥ 98% (HPLC)
    Catalog Number:
    22639
    CAS Number:
    1185005-62-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD06656434
    Molecular Formula:
    C20H38N2O5
    Molecular Weight:
    386.53
  • Catalog Number:
    22638
    CAS Number:
    917099-02-6
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD06410973
    Molecular Formula:
    C21H21NO5
    Molecular Weight:
    367.4
  • Catalog Number:
    22637
    CAS Number:
    917835-93-9, 1212688-40-8
    Purity Limit:
    ≥ 97% (NMR)
    MDL NO:
    MFCD06410967
    Molecular Formula:
    C11H19NO5
    Molecular Weight:
    245.28
  • DL-Ethionine

    Synonym:
    2-Amino-4-(ethylthio)butyric acid
    Catalog Number:
    22060
    CAS Number:
    67-21-0
    MDL NO:
    MFCD00063102
    Molecular Formula:
    C6H13NO2S
    Molecular Weight:
    163.24
  • 5-Hydroxy-DL-tryptophan

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    2-Amino-3-(5-hydroxy-1H-indol-3-yl)propanoic acid
    Catalog Number:
    22038
    CAS Number:
    114-03-4, 56-69-9
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00005651
    Molecular Formula:
    C11H12N2O3
    Molecular Weight:
    220.23
  • 1,4-Diaminobutane

    Hazmat
    Synonym:
    1,4-Butanediamine
    Hazmat
    Catalog Number:
    21982
    CAS Number:
    110-60-1
    MDL NO:
    MFCD00008235
    Molecular Formula:
    C4H12N2
    Molecular Weight:
    88.15
  • N-Acetyl-DL-tryptophan

    Purity:
    ≥ 99% (Assay)
    Synonym:
    2-Acetylamino-3-(1H-indol-3-yl)propionic acid
    Catalog Number:
    21910
    CAS Number:
    87-32-1
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00005644
    Molecular Formula:
    C13H14N2O3
    Molecular Weight:
    246.27
  • L-Homoarginine hydrochloride

    Purity:
    ≥ 95% (Assay)
    Synonym:
    (S)-2-Amino-6-guanidinohexanoic acid hydrochloride
    Catalog Number:
    21837
    CAS Number:
    1483-01-8
    Purity Limit:
    ≥ 95% (Assay)
    MDL NO:
    MFCD00012622
    Molecular Formula:
    C7H16N4O2·HCl
    Molecular Weight:
    224.69
  • DL-Penicillamine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    DL-Pen-OH
    Catalog Number:
    21824
    CAS Number:
    52-66-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00004856
    Molecular Formula:
    C5H11NO2S
    Molecular Weight:
    149.21
  • Catalog Number:
    21823
    CAS Number:
    69833-18-7
    MDL NO:
    MFCD00151039
    Molecular Formula:
    C4H8N2O3·H2O
    Molecular Weight:
    150.13
  • Indoline-2-carboxylic acid

    Synonym:
    DL-2,3-Dihydroindole-2-carboxylic acid
    Catalog Number:
    21815
    CAS Number:
    16851-56-2
    MDL NO:
    MFCD00010635
    Molecular Formula:
    C9H9NO2
    Molecular Weight:
    163.18
  • N-Acetyl-3,5-diiodo-L-tyrosine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    3,5-Diiodo-N-acetyl-L-tyrosine
    Catalog Number:
    21797
    CAS Number:
    1027-28-7
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00020004
    Molecular Formula:
    C11H11I2NO4
    Molecular Weight:
    475.01
  • L-Kynurenine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    L-2-Amino-3-(2-aminobenzoyl)propionic acid
    Catalog Number:
    21798
    CAS Number:
    2922-83-0
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00069912
    Molecular Formula:
    C10H12N2O3
    Molecular Weight:
    208.22
  • N-(4-Aminobenzoyl)-L-glutamic acid diethyl ester

    Synonym:
    Diethyl N-(4-aminobenzoyl)-L-glutamate
    Catalog Number:
    21796
    CAS Number:
    13726-52-8
    MDL NO:
    MFCD00009617
    Molecular Formula:
    C16H22N2O5
    Molecular Weight:
    322.36
  • 3,5-Diiodo-L-tyrosine dihydrate

    Synonym:
    3,5-Diiodo-β-(p-hydroxyphenyl)-L-alanine dihydrate
    Catalog Number:
    21791
    CAS Number:
    18835-59-1
    MDL NO:
    MFCD00150275
    Molecular Formula:
    C9H9I2NO3·2H2O
    Molecular Weight:
    469.0
  • 5-Amino-4-oxovaleric acid methyl ester hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    5-Aminolevulinic acid methyl ester hydrochloride
    Catalog Number:
    21778
    CAS Number:
    79416-27-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00012868
    Molecular Formula:
    C6H11NO3·HCl
    Molecular Weight:
    181.62
  • Glycocholic acid hydrate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Cholylglycine hydrate
    Catalog Number:
    21759
    CAS Number:
    475-31-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD06408004
    Molecular Formula:
    C26H43NO6
    Molecular Weight:
    465.63
  • DL-Kynurenine

    Synonym:
    DL-2-Amino-3-(2-aminobenzoyl)propionic acid
    Catalog Number:
    21748
    CAS Number:
    343-65-7
    MDL NO:
    MFCD00025194
    Molecular Formula:
    C10H12N2O3
    Molecular Weight:
    208.22
  • DL-Cysteine

    Purity:
    ≥ 97% (Assay)
    Synonym:
    DL-2-Amino-3-mercaptopropionic acid
    Catalog Number:
    21654
    CAS Number:
    3374-22-9
    Purity Limit:
    ≥ 97% (Assay)
    MDL NO:
    MFCD00004881
    Molecular Formula:
    C3H7NO2S
    Molecular Weight:
    121.16
  • b-Aminoisobutyric acid

    Synonym:
    DL-3-Amino-2-methyl-propionic acid
    Catalog Number:
    21653
    CAS Number:
    10569-72-9
    MDL NO:
    MFCD00008145
    Molecular Formula:
    C4H9NO2
    Molecular Weight:
    103.12
  • DL-Citrulline

    Synonym:
    DL-Cit-OH
    Catalog Number:
    21637
    CAS Number:
    627-77-0
    MDL NO:
    MFCD00007955
    Molecular Formula:
    C6H13N3O3
    Molecular Weight:
    175.19
  • 5-Aminovaleric acid hydrochloride

    Synonym:
    5-Ava-OH·HCl
    Catalog Number:
    21636
    CAS Number:
    627-95-2
    MDL NO:
    MFCD00012919
    Molecular Formula:
    C5H11NO2·HCl
    Molecular Weight:
    153.61
  • DL-Cystein hydrochloride hydrate

    Synonym:
    DL-Cys-OH·HCl·H2O
    Catalog Number:
    21624
    CAS Number:
    116797-51-4
    MDL NO:
    MFCD00151030
    Molecular Formula:
    C3H7NO2S·HCl·H2O
    Molecular Weight:
    175.64
  • DL-Arginine

    Purity:
    97.0%-102.0% (Assay)
    Synonym:
    H-DL-Arg-OH
    Catalog Number:
    21589
    CAS Number:
    7200-25-1
    Purity Limit:
    97.0%-102.0% (Assay)
    MDL NO:
    MFCD00063117
    Molecular Formula:
    C6H14N4O2
    Molecular Weight:
    174.2
  • 3-Carbethoxy-2-piperidone

    Synonym:
    2-Oxopiperidine-3-carboxylic acid ethyl ester
    Catalog Number:
    21565
    CAS Number:
    3731-16-6
    MDL NO:
    MFCD00006038
    Molecular Formula:
    C8H13NO3
    Molecular Weight:
    171.2
  • DL-2,3-Diaminopropionic acid monohydrochloride

    Purity:
    ≥ 98% (Titration)
    Synonym:
    DL-2,3-Diaminopropionic acid monohydrochloride
    Catalog Number:
    21559
    CAS Number:
    54897-59-5
    Purity Limit:
    ≥ 98% (Titration)
    MDL NO:
    MFCD00012884
    Molecular Formula:
    C3H8N2O2·HCl
    Molecular Weight:
    140.57
  • DL-o-Tyrosine

    Synonym:
    H-DL-o-Tyr-OH
    Catalog Number:
    21532
    CAS Number:
    2370-61-8
    MDL NO:
    MFCD00021725
    Molecular Formula:
    C9H11NO3
    Molecular Weight:
    181.19
  • L-Arginine β-naphthylamide hydrochloride

    Purity:
    ≥ 99% (Elemental Analysis)
    Synonym:
    Arginine-βNA·HCl
    Catalog Number:
    21503
    CAS Number:
    18905-73-2
    Purity Limit:
    ≥ 99% (Elemental Analysis)
    MDL NO:
    MFCD00051283
    Molecular Formula:
    C16H21N5O·HCl
    Molecular Weight:
    335.84
  • DL-Cysteine hydrochloride

    Synonym:
    DL-2-Amino-3-mercaptopropionic acid hydrochloride
    Catalog Number:
    21500
    CAS Number:
    10318-18-0
    MDL NO:
    MFCD00064552
    Molecular Formula:
    C3H7NO2S·HCl
    Molecular Weight:
    157.62
  • DL-2-Methylglutamic acid

    Synonym:
    2-Methyl-DL-glutamic acid
    Catalog Number:
    21353
    CAS Number:
    71-90-9
    MDL NO:
    MFCD00004188
    Molecular Formula:
    C6H11NO4
    Molecular Weight:
    161.16
  • L-Tryptophan-7-amido-4-methylcoumarin dihydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    H-L-Trp-AMC·2HCl
    Catalog Number:
    21446
    CAS Number:
    201860-49-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD02683915
    Molecular Formula:
    C21H19N3O3·2HCl
    Molecular Weight:
    434.32
  • L-Ornithine-7-amido-4-methylcoumarin hydrochloride

    Purity:
    ≥ 96% (HPLC)
    Synonym:
    L-Ornithine-7-amido-4-methylcoumarin hydrochloride
    Catalog Number:
    21445
    CAS Number:
    201854-09-3
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD18633552
    Molecular Formula:
    C16H21N3O2·HCl
    Molecular Weight:
    325.83