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🌟 NEW: Customizable Macrocyclic Peptide Libraries

Unusual Amino Acids

2217
Filters

  • D-Cycloserine

    Grade:
    USP
    Synonym:
    D-4-Amino-3-isoxazolidinone
    Catalog Number:
    00618
    Grade:
    USP
    CAS Number:
    68-41-7
    MDL NO:
    MFCD00005353
    Molecular Formula:
    C3H6N2O2
    Molecular Weight:
    102.1
    Specification Sheet SDS

  • Fmoc-L-norleucine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    Fmoc-L-Nle-OH
    Catalog Number:
    02440
    CAS Number:
    77284-32-3
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00037537
    Molecular Formula:
    C21H23NO4
    Molecular Weight:
    353.42
    Specification Sheet SDS

  • 6-Diazo-5-oxo-L-norleucine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Nle(6-Diazo-5-oxo)-OH
    Catalog Number:
    07038
    CAS Number:
    157-03-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00037218
    Molecular Formula:
    C6H9N3O3
    Molecular Weight:
    171.16
    Specification Sheet SDS

  • Fmoc-L-α-aminobutyric acid

    Purity:
    ≥ 99.5% (Chiral purity)
    Synonym:
    Fmoc-L-Abu-OH
    Catalog Number:
    02691
    CAS Number:
    135112-27-5
    Purity Limit:
    ≥ 99.5% (Chiral purity)
    MDL NO:
    MFCD00080268
    Molecular Formula:
    C19H19NO4
    Molecular Weight:
    325.4
    Specification Sheet SDS

  • Fmoc-6-aminohexanoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-6-aminocaproic acid
    Catalog Number:
    02490
    CAS Number:
    88574-06-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00077045
    Molecular Formula:
    C21H23NO4
    Molecular Weight:
    353.3
    Specification Sheet SDS

  • Fmoc-p-trifluoromethyl-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Phe(4-CF3)-OH
    Catalog Number:
    07392
    CAS Number:
    247113-86-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00797581
    Molecular Formula:
    C25H20F3NO4
    Molecular Weight:
    455.43
    Specification Sheet SDS

  • Fmoc-sarcosine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-Sar-OH
    Catalog Number:
    02653
    CAS Number:
    77128-70-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00151926
    Molecular Formula:
    C18H17NO4
    Molecular Weight:
    311.3
    Specification Sheet SDS

  • Fmoc-β-cyclohexyl-L-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Cha-OH
    Catalog Number:
    02375
    CAS Number:
    135673-97-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00065614
    Molecular Formula:
    C24H27NO4
    Molecular Weight:
    393.5
    Specification Sheet SDS

  • 4-Aminobenzoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    4-Abz-OH
    Catalog Number:
    01431
    CAS Number:
    150-13-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00007894
    Molecular Formula:
    C7H7NO2
    Molecular Weight:
    137.14
    Specification Sheet SDS

  • Hydroxylamine hydrochloride

    Hazmat
    Purity:
    ≥ 99% (Titration)
    Synonym:
    Hydroxylammonium chloride
    Hazmat
    Catalog Number:
    01235
    CAS Number:
    5470-11-1
    Purity Limit:
    ≥ 99% (Titration)
    MDL NO:
    MFCD00051089
    Molecular Formula:
    NH2OH·HCl
    Molecular Weight:
    69.49
    Specification Sheet SDS

  • Fmoc-L-azetidine-2-carboxylic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-(S-azetidine-2-carboxylic acid
    Catalog Number:
    07329
    CAS Number:
    136552-06-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD01320843
    Molecular Formula:
    C19H17NO4
    Molecular Weight:
    323.36
    Specification Sheet SDS

  • Fmoc-L-homoproline

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-HomoPro-OH
    Catalog Number:
    05136
    CAS Number:
    86069-86-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00235898
    Molecular Formula:
    C21H21NO4
    Molecular Weight:
    351.4
    Specification Sheet SDS

  • Fmoc-3-(2-naphthyl)-L-alanine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-L-Ala(2-naphthyl)-OH
    Catalog Number:
    02588
    CAS Number:
    112883-43-9
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00144886
    Molecular Formula:
    C28H23NO4
    Molecular Weight:
    437.5
    Specification Sheet SDS

  • Fmoc-4-fluoro-L-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Phe(4-F)-OH
    Catalog Number:
    02575
    CAS Number:
    169243-86-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00191197
    Molecular Formula:
    C24H20FNO4
    Molecular Weight:
    405.4
    Specification Sheet SDS

  • Fmoc-D-azetidine-2-carboxylic acid

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-(R-azetidine-2-carboxylic acid
    Catalog Number:
    35203
    CAS Number:
    374791-02-3
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD01320875
    Molecular Formula:
    C19H17NO4
    Molecular Weight:
    323.34
    Specification Sheet SDS

  • Fmoc-2-methyl-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Phe(2-Me)-OH
    Catalog Number:
    12843
    CAS Number:
    211637-75-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00671391
    Molecular Formula:
    C25H23NO4
    Molecular Weight:
    401.46
    Specification Sheet SDS

  • Tranexamic acid

    Grade:
    USP
    Purity:
    99 - 101% (Assay by titration)
    Synonym:
    trans-4-(Aminomethyl)cyclohexanecarboxylic acid
    Catalog Number:
    06911
    Grade:
    USP
    CAS Number:
    1197-18-8
    Purity Limit:
    99 - 101% (Assay by titration)
    MDL NO:
    MFCD00001466
    Molecular Formula:
    C8H15NO2
    Molecular Weight:
    157.21
    Specification Sheet SDS

  • Fmoc-O-methyl-L-tyrosine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-L-Tyr(Me)-OH
    Catalog Number:
    05350
    CAS Number:
    77128-72-4
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00153368
    Molecular Formula:
    C25H23NO5
    Molecular Weight:
    417.47
    Specification Sheet SDS

  • 4-Benzoyl-L-phenylalanine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    L-Bpa-OH
    Catalog Number:
    05110
    CAS Number:
    104504-45-2
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00238102
    Molecular Formula:
    C16H15NO3
    Molecular Weight:
    269.3
    Specification Sheet SDS

  • Fmoc-2-fluoro-L-phenylalanine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-L-Phe(2-F)-OH
    Catalog Number:
    04138
    CAS Number:
    205526-26-7
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00672552
    Molecular Formula:
    C24H20FNO4
    Molecular Weight:
    405.4
    Specification Sheet SDS

  • Fmoc-N-methyl-L-norleucine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-N-Me-L-Nle-OH
    Catalog Number:
    02665
    CAS Number:
    112883-42-8
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00235878
    Molecular Formula:
    C22H25NO4
    Molecular Weight:
    367.4
    Specification Sheet SDS

  • Fmoc-4-chloro-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Phe(4-Cl)-OH
    Catalog Number:
    02568
    CAS Number:
    175453-08-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00080281
    Molecular Formula:
    C24H20ClNO4
    Molecular Weight:
    421.9
    Specification Sheet SDS

  • Pentafluoro-L-phenylalanine

    Purity:
    ≥ 99% (ChiraL HPLC)
    Synonym:
    L-Phe(F)5-OH
    Catalog Number:
    07183
    CAS Number:
    138109-65-6, 34702-59-5
    Purity Limit:
    ≥ 99% (ChiraL HPLC)
    MDL NO:
    MFCD01860881
    Molecular Formula:
    C9H6NO2F5
    Molecular Weight:
    255.12
    Specification Sheet SDS

  • Fmoc-4-azido-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Phe(4-azido)-OH
    Catalog Number:
    05752
    CAS Number:
    163217-43-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00237665
    Molecular Formula:
    C24H20N4O4
    Molecular Weight:
    428.5
    Specification Sheet SDS

  • Fmoc-S-trityl-L-homocysteine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Fmoc-L-HomoCys(Trt)-OH
    Catalog Number:
    05723
    CAS Number:
    167015-23-8
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00672322
    Molecular Formula:
    C38H33NO4S
    Molecular Weight:
    599.74
    Specification Sheet SDS

  • Fmoc-4-methyl-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Phe(4-Me)-OH
    Catalog Number:
    04991
    CAS Number:
    199006-54-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00270197
    Molecular Formula:
    C25H23NO4
    Molecular Weight:
    401.46
    Specification Sheet SDS

  • Diethanolamine

    Hazmat
    Purity:
    ≥ 99%
    Synonym:
    Bis(2-hydroxyethyl)amine
    Hazmat
    Catalog Number:
    03999
    CAS Number:
    111-42-2
    Purity Limit:
    ≥ 99%
    MDL NO:
    MFCD00002843
    Molecular Formula:
    C4H11NO2
    Molecular Weight:
    105.1
    Specification Sheet SDS

  • Nα-Fmoc-Nβ-Boc-L-2,3-diaminopropionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Dap(Boc)-OH
    Catalog Number:
    03763
    CAS Number:
    162558-25-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00235896
    Molecular Formula:
    C23H26N2O6
    Molecular Weight:
    426.46
    Specification Sheet SDS

  • Fmoc-4-(Boc-amino)-L-phenylalanine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Fmoc-L-Phe(4-NHBoc)-OH
    Catalog Number:
    03755
    CAS Number:
    174132-31-1
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00237007
    Molecular Formula:
    C29H30N2O6
    Molecular Weight:
    502.6
    Specification Sheet SDS

  • Fmoc-(3S-)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid

    Purity:
    ≥ 99% (Chiral HPLC)
    Synonym:
    Fmoc-L-Tic-OH
    Catalog Number:
    02601
    CAS Number:
    136030-33-6
    Purity Limit:
    ≥ 99% (Chiral HPLC)
    MDL NO:
    MFCD00144368
    Molecular Formula:
    C25H21NO4
    Molecular Weight:
    399.4
    Specification Sheet SDS

  • 3,4-Dihydroxy-L-phenylalanine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    3-(3,4-Dihydroxyphenyl)-L-alanine
    Catalog Number:
    32464
    CAS Number:
    59-92-7
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00002598
    Molecular Formula:
    C9H11NO4
    Molecular Weight:
    197.19
    Specification Sheet SDS

  • N-Boc-ethylenediamine

    Hazmat
    Purity:
    ≥ 98% (GC)
    Synonym:
    N-Boc-1,2-diaminoethane
    Hazmat
    Catalog Number:
    31307
    CAS Number:
    57260-73-8
    Purity Limit:
    ≥ 98% (GC)
    MDL NO:
    MFCD00191871
    Molecular Formula:
    C7H16N2O2
    Molecular Weight:
    160.21
    Specification Sheet SDS

  • Fmoc-L-Phe(2-trifluoromethyl)-OH

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Fmoc-L-Phe(2-CF3)-OH
    Catalog Number:
    14044
    CAS Number:
    352523-16-1
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD01863052
    Molecular Formula:
    C25H20F3NO4
    Molecular Weight:
    455.43
    Specification Sheet SDS

  • Fmoc-a-methyl-D-phenylalanine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-a-Me-D-Phe-OH
    Catalog Number:
    11629
    CAS Number:
    152436-04-9
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD02259493
    Molecular Formula:
    C25H23NO4
    Molecular Weight:
    401.46
    Specification Sheet SDS

  • Fmoc-3-(4-thiazolyl)-D-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-D-Ala(4-thiazoyl)-OH
    Catalog Number:
    07381
    CAS Number:
    205528-33-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00672569
    Molecular Formula:
    C21H18N2O4S
    Molecular Weight:
    394.45
    Specification Sheet SDS

  • Fmoc-8-amino-3,6-dioxaoctanoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    {2-[2-(Fmoc-amino)ethoxy]ethoxy}acetic acid
    Catalog Number:
    07310
    CAS Number:
    166108-71-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD01321015
    Molecular Formula:
    C21H23NO6
    Molecular Weight:
    385.42
    Specification Sheet SDS

  • Fmoc-D-homoproline

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-HomoPro-OH
    Catalog Number:
    05137
    CAS Number:
    101555-63-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00235899
    Molecular Formula:
    C21H21NO4
    Molecular Weight:
    351.4
    Specification Sheet SDS

  • Fmoc-L-propargylglycine

    Purity:
    ≥ 99% (Chiral HPLC)
    Synonym:
    Fmoc-L-propargyl-Gly-OH
    Catalog Number:
    05138
    CAS Number:
    198561-07-8
    Purity Limit:
    ≥ 99% (Chiral HPLC)
    MDL NO:
    MFCD01075095
    Molecular Formula:
    C20H17NO4
    Molecular Weight:
    335.3
    Specification Sheet SDS

  • Fmoc-(2S,4S-4-amino-1-benzoyl-pyrrolidine-2-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-AZPC(2S,4S-OH
    Catalog Number:
    04940
    CAS Number:
    204321-85-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00673784
    Molecular Formula:
    C27H24N2O5
    Molecular Weight:
    456.5
    Specification Sheet SDS

  • Fmoc-4-bromo-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Phe(4-Br)-OH
    Catalog Number:
    04090
    CAS Number:
    198561-04-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00273460
    Molecular Formula:
    C24H20BrNO4
    Molecular Weight:
    466.3
    Specification Sheet SDS

  • Fmoc-p-phenyl-L-Phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Bip(4,4')-OH
    Catalog Number:
    04084
    CAS Number:
    199110-64-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00191198
    Molecular Formula:
    C30H25NO4
    Molecular Weight:
    463.52
    Specification Sheet SDS

  • Fmoc-L-octahydroindole-2-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Oic-OH
    Catalog Number:
    02718
    CAS Number:
    130309-37-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD09750487
    Molecular Formula:
    C24H25NO4
    Molecular Weight:
    391.5
    Specification Sheet SDS

  • Fmoc-L-cyclohexylglycine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Chg-OH
    Catalog Number:
    02562
    CAS Number:
    161321-36-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00190878
    Molecular Formula:
    C23H25NO4
    Molecular Weight:
    379.4
    Specification Sheet SDS

  • Fmoc-α-aminoisobutyric acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-Aib-OH
    Catalog Number:
    02547
    CAS Number:
    94744-50-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00151913
    Molecular Formula:
    C19H19NO4
    Molecular Weight:
    325.37
    Specification Sheet SDS

  • Mal-L-Dap(Boc)-OPfp

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Nα -Maleimido-Nb-Boc-L-2,3-diaminopropionic acid pentafluorophenolate
    Catalog Number:
    37075
    CAS Number:
    1887132-90-2
    Purity Limit:
    ≥ 98% (HPLC)
    Molecular Formula:
    C18H15F5N2O6
    Molecular Weight:
    450.3
    Specification Sheet SDS

  • Fmoc-L-2,6-dimethyltyrosine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-L-Tyr(2,6-DiCH3)-OH
    Catalog Number:
    33619
    CAS Number:
    206060-54-0
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD01632251
    Molecular Formula:
    C26H25NO5
    Molecular Weight:
    431.48
    Specification Sheet SDS

  • 3-Fluoro-L-tyrosine

    Purity:
    ≥ 97.5% (HPLC)
    Synonym:
    H-Tyr(3-F)-OH
    Catalog Number:
    31891
    CAS Number:
    7423-96-3
    Purity Limit:
    ≥ 97.5% (HPLC)
    MDL NO:
    MFCD00002607
    Molecular Formula:
    C9H10FNO3
    Molecular Weight:
    199.18
    Specification Sheet SDS

  • Fmoc-L-nipecotic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Nip-OH
    Catalog Number:
    22651
    CAS Number:
    193693-68-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD04112682
    Molecular Formula:
    C21H21NO4
    Molecular Weight:
    351.4
    Specification Sheet SDS

  • 2-(Dimethylamino)ethylamine

    Hazmat
    Purity:
    ≥ 99% (GC)
    Synonym:
    N.N-Dimethylethylenediamine
    Hazmat
    Catalog Number:
    22268
    CAS Number:
    108-00-9
    Purity Limit:
    ≥ 99% (GC)
    MDL NO:
    MFCD00008175
    Molecular Formula:
    C4H12N2
    Molecular Weight:
    88.15
    Specification Sheet SDS

  • 5-Bromo-DL-tryptophan

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    2-Amino-3-(5-bromo-1H-indol-3-yl)propanoic acid
    Catalog Number:
    21229
    CAS Number:
    6548-09-0
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00005648
    Molecular Formula:
    C11H11BrN2O2
    Molecular Weight:
    283.12
    Specification Sheet SDS
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