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🌟 NEW: Customizable Macrocyclic Peptide Libraries

Unusual Amino Acids

2217
Filters

  • 2S-(-)-Propanolol hydrochloride

    Purity:
    ≥ 95% (NMR)
    Synonym:
    (S)-(+)-1-[(1-Methylethyl)amino]-3-(1-naphthalenyloxy)-2-propanol hydrochloride
    Catalog Number:
    04466
    CAS Number:
    4199-10-4
    Purity Limit:
    ≥ 95% (NMR)
    MDL NO:
    MFCD00064547
    Molecular Formula:
    C16H21NO2·HCl
    Molecular Weight:
    295.81
    Specification Sheet SDS

  • L-Homocitrulline

    Purity:
    ≥ 98% (TLC, One spot)
    Synonym:
    L-HomoCit-OH
    Catalog Number:
    04464
    CAS Number:
    1190-49-4
    Purity Limit:
    ≥ 98% (TLC, One spot)
    MDL NO:
    MFCD00038143
    Molecular Formula:
    C7H15N3O3
    Molecular Weight:
    189.22
    Specification Sheet SDS

  • 3,3',5,5'-Tetraiodo-L-thyronine sodium salt

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Thyroxine·Na
    Catalog Number:
    04467
    CAS Number:
    25416-65-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00002596
    Molecular Formula:
    C15H10I4NO4Na
    Molecular Weight:
    798.85
    Specification Sheet SDS

  • 3S,4S-4-Amino-3-hydroxy-5-phenylpentanoic acid

    Purity:
    ≥ 97%
    Synonym:
    AHPPA-OH
    Catalog Number:
    04451
    CAS Number:
    72155-50-1
    Purity Limit:
    ≥ 97%
    MDL NO:
    MFCD00153478
    Molecular Formula:
    C11H15NO3
    Molecular Weight:
    209.3
    Specification Sheet SDS

  • L-Glutamic acid α-amide

    Purity:
    ≥ 98% (Assay by Titration)
    Synonym:
    L-Glu-NH2
    Catalog Number:
    04427
    CAS Number:
    636-65-7
    Purity Limit:
    ≥ 98% (Assay by Titration)
    MDL NO:
    MFCD00135661
    Molecular Formula:
    C5H10N2O3
    Molecular Weight:
    146.1
    Specification Sheet SDS

  • L-Pyroglutamic acid pentachlorophenyl ester

    Purity:
    ≥ 99% (Elemental Analysis)
    Synonym:
    L-Pyr-Opcp
    Catalog Number:
    04447
    CAS Number:
    28990-85-4
    Purity Limit:
    ≥ 99% (Elemental Analysis)
    MDL NO:
    MFCD00057185
    Molecular Formula:
    C11H6NO3Cl5
    Molecular Weight:
    377.4
    Specification Sheet SDS

  • D-Homoserine

    Purity:
    ≥ 99% (TLC)
    Synonym:
    D-HomoSer-OH
    Catalog Number:
    04449
    CAS Number:
    6027-21-0
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00077786
    Molecular Formula:
    C4H9NO3
    Molecular Weight:
    119.12
    Specification Sheet SDS

  • D-Pyroglutamic acid ethyl ester

    Purity:
    ≥ 98% (NMR)
    Synonym:
    D-Pyr-OEt
    Catalog Number:
    04448
    CAS Number:
    68766-96-1
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00010848
    Molecular Formula:
    C7H11NO3
    Molecular Weight:
    157.2
    Specification Sheet SDS

  • β-Cyclohexyl-L-alanine methyl ester hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Cha-OMe·HCl
    Catalog Number:
    04421
    CAS Number:
    144600-01-1, 17193-39-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00153486
    Molecular Formula:
    C10H19NO2·HCl
    Molecular Weight:
    221.7
    Specification Sheet SDS

  • L-Glutamine α-amide hydrochloride

    Purity:
    ≥ 98% (NMR)
    Synonym:
    L-Gln-NH2·HCl
    Catalog Number:
    04430
    CAS Number:
    21752-29-4
    Purity Limit:
    ≥ 98% (NMR)
    MDL NO:
    MFCD00077118
    Molecular Formula:
    C5H11N3O2·HCl
    Molecular Weight:
    181.7
    Specification Sheet SDS

  • L-Glutamic acid γ-benzyl ester α-amide hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Glu(OBzl)-NH2·HCl
    Catalog Number:
    04429
    CAS Number:
    63091-89-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00153434
    Molecular Formula:
    C12H16N2O3·HCl
    Molecular Weight:
    272.5
    Specification Sheet SDS

  • Acetyl-3-(2-naphthyl)-D-alanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Ac-D-Ala(2-naphthyl)-OH
    Catalog Number:
    04380
    CAS Number:
    37440-01-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00079678
    Molecular Formula:
    C15H15NO3
    Molecular Weight:
    257.27
    Specification Sheet SDS

  • Acetyl-DL-phenylglycine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Ac-DL-Phg-OH
    Catalog Number:
    04388
    CAS Number:
    15962-46-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00055924
    Molecular Formula:
    C10H11NO3
    Molecular Weight:
    193.2
    Specification Sheet SDS

  • Trityl-L- homoserine diethylammonium salt

    Purity:
    ≥ 98% (TLC)
    Synonym:
    Trt-L-HomoSer-OH·DEA
    Catalog Number:
    04154
    CAS Number:
    83427-83-2
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD01631995
    Molecular Formula:
    C23H23NO3·C4H11N
    Molecular Weight:
    434.5
    Specification Sheet SDS

  • Fmoc-3,3-diphenyl-D-alanine

    Purity:
    ≥ 99% (Chiral HPLC, HPLC)
    Synonym:
    Fmoc-D-Ala(3,3-diphenyl)-OH
    Catalog Number:
    04134
    CAS Number:
    189937-46-0
    Purity Limit:
    ≥ 99% (Chiral HPLC, HPLC)
    MDL NO:
    MFCD00672338
    Molecular Formula:
    C30H25NO4
    Molecular Weight:
    463.5
    Specification Sheet SDS

  • Fmoc-D-β-indanylglycine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-D-2-Indanylgly-OH
    Catalog Number:
    04149
    CAS Number:
    205526-40-5
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00797587
    Molecular Formula:
    C26H25NO4
    Molecular Weight:
    413.5
    Specification Sheet SDS

  • Fmoc-4-iodo-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-D-Phe(4-I)-OH
    Catalog Number:
    04153
    CAS Number:
    205526-29-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00672557
    Molecular Formula:
    C24H20INO4
    Molecular Weight:
    513.4
    Specification Sheet SDS

  • D-4-Iodophenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    D-Phe(4-I)-OH
    Catalog Number:
    04150
    CAS Number:
    62561-75-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00063067
    Molecular Formula:
    C9H10INO2
    Molecular Weight:
    291.1
    Specification Sheet SDS

  • Boc-3-fluoro-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Phe(3-F)-OH
    Catalog Number:
    04141
    CAS Number:
    114873-01-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672522
    Molecular Formula:
    C14H18FNO4
    Molecular Weight:
    283.2
    Specification Sheet SDS

  • Boc-4-iodo-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Phe(4-I)-OH
    Catalog Number:
    04151
    CAS Number:
    62129-44-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037119
    Molecular Formula:
    C14H18INO4
    Molecular Weight:
    391.2
    Specification Sheet SDS

  • L-β-Indanylglycine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-2-Indanylgly-OH
    Catalog Number:
    04144
    CAS Number:
    155239-51-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD08275743
    Molecular Formula:
    C11H13NO2
    Molecular Weight:
    191.3
    Specification Sheet SDS

  • Boc-4-iodo-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Phe(4-I)-OH
    Catalog Number:
    04152
    CAS Number:
    176199-35-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00079670
    Molecular Formula:
    C14H18INO4
    Molecular Weight:
    391.2
    Specification Sheet SDS

  • Fmoc-3,5-difluoro-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-D-Phe(3,5-DiF)-OH
    Catalog Number:
    04128
    CAS Number:
    205526-25-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00797580
    Molecular Formula:
    C24H19F2NO4
    Molecular Weight:
    423.4
    Specification Sheet SDS

  • Boc-3-fluoro-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Phe(3-F)-OH
    Catalog Number:
    04142
    CAS Number:
    114873-11-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672523
    Molecular Formula:
    C14H18FNO4
    Molecular Weight:
    283.2
    Specification Sheet SDS

  • D-β-Indanylglycine

    Purity:
    ≥ 98%
    Synonym:
    D-2-Indanylgly-OH
    Catalog Number:
    04145
    CAS Number:
    181227-46-3
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD08275744
    Molecular Formula:
    C11H13NO2
    Molecular Weight:
    191.3
    Specification Sheet SDS

  • 3-Fluoro-D-phenylalanine

    Purity:
    ≥ 98% (Chiral purity, HPLC)
    Synonym:
    D-Phe(3-F)-OH
    Catalog Number:
    04140
    CAS Number:
    110117-84-5
    Purity Limit:
    ≥ 98% (Chiral purity, HPLC)
    MDL NO:
    MFCD00066449
    Molecular Formula:
    C9H10FNO2
    Molecular Weight:
    183.2
    Specification Sheet SDS

  • Fmoc-3-fluoro-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Phe(3-F)-OH
    Catalog Number:
    04143
    CAS Number:
    198545-72-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672554
    Molecular Formula:
    C24H20FNO4
    Molecular Weight:
    405.4
    Specification Sheet SDS

  • Fmoc-3,3-diphenyl-L-alanine

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Ala(3,3-diphenyl)-OH
    Hazmat
    Catalog Number:
    04133
    CAS Number:
    201484-50-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672337
    Molecular Formula:
    C30H25NO4
    Molecular Weight:
    463.5
    Specification Sheet SDS

  • 3,3-Diphenyl-D-alanine

    Purity:
    ≥ 99% (assay)
    Synonym:
    D-Ala(3,3-diphenyl)-OH
    Catalog Number:
    04130
    CAS Number:
    149597-91-1
    Purity Limit:
    ≥ 99% (assay)
    MDL NO:
    MFCD01631990
    Molecular Formula:
    C15H15NO2
    Molecular Weight:
    241.3
    Specification Sheet SDS

  • 3,3-Diphenyl-L-alanine

    Hazmat
    Purity:
    ≥ 99% (Chiral HPLC)
    Synonym:
    L-Ala(3,3-diphenyl)-OH
    Hazmat
    Catalog Number:
    04129
    CAS Number:
    149597-92-2
    Purity Limit:
    ≥ 99% (Chiral HPLC)
    MDL NO:
    MFCD01631989
    Molecular Formula:
    C15H15NO2
    Molecular Weight:
    241.3
    Specification Sheet SDS

  • Boc-3,3-diphenyl-D-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Ala(3,3-diphenyl)-OH
    Catalog Number:
    04132
    CAS Number:
    117027-46-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00191187
    Molecular Formula:
    C20H23NO4
    Molecular Weight:
    341.4
    Specification Sheet SDS

  • Boc-3,3-diphenyl-L-alanine

    Purity:
    ≥ 98% (TLC)
    Synonym:
    Boc-L-Ala(3,3-diphenyl)-OH
    Catalog Number:
    04131
    CAS Number:
    138662-63-2
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00191186
    Molecular Formula:
    C20H23NO4
    Molecular Weight:
    341.4
    Specification Sheet SDS

  • Boc-2-fluoro-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Phe(2-F)-OH
    Catalog Number:
    04137
    CAS Number:
    114873-10-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00672521
    Molecular Formula:
    C14H18FNO4
    Molecular Weight:
    283.2
    Specification Sheet SDS

  • D-3,5-Difluorophenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Phe(3,5-DiF)-OH
    Catalog Number:
    04124
    CAS Number:
    266360-63-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD01631988
    Molecular Formula:
    C9H9F2NO2
    Molecular Weight:
    201.2
    Specification Sheet SDS

  • Boc-3,4-difluoro-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Phe(3,4-DiF)-OH
    Catalog Number:
    04120
    CAS Number:
    205445-51-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672519
    Molecular Formula:
    C14H17F2NO4
    Molecular Weight:
    301.3
    Specification Sheet SDS

  • Boc-4-cyano-D-phenylalanine

    Purity:
    ≥ 100% (HPLC)
    Synonym:
    Boc-D-Phe(4-CN)-OH
    Catalog Number:
    04113
    CAS Number:
    146727-62-0
    Purity Limit:
    ≥ 100% (HPLC)
    MDL NO:
    MFCD00672527
    Molecular Formula:
    C15H18N2O4
    Molecular Weight:
    290.3
    Specification Sheet SDS

  • Boc-3,5-difluoro-L-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Phe(3,5-DiF)-OH
    Catalog Number:
    04125
    CAS Number:
    205445-52-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00797555
    Molecular Formula:
    C14H17F2NO4
    Molecular Weight:
    301.3
    Specification Sheet SDS

  • Fmoc-3,5-difluoro-L-phenylalanine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Fmoc-L-Phe(3,5-DiF)-OH
    Catalog Number:
    04127
    CAS Number:
    205526-24-5
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00797579
    Molecular Formula:
    C24H19F2NO4
    Molecular Weight:
    423.4
    Specification Sheet SDS

  • Boc-3,5-difluoro-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Phe(3,5-DiF)-OH
    Catalog Number:
    04126
    CAS Number:
    205445-53-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00797556
    Molecular Formula:
    C14H17F2NO4
    Molecular Weight:
    301.3
    Specification Sheet SDS

  • Fmoc-3,4-difluoro-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Phe(3,4-DiF)-OH
    Catalog Number:
    04122
    CAS Number:
    198545-59-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672551
    Molecular Formula:
    C24H19F2NO4
    Molecular Weight:
    423.4
    Specification Sheet SDS

  • L-3,5-Difluorophenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Phe(3,5-DiF)-OH
    Catalog Number:
    04123
    CAS Number:
    31105-91-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD01631987
    Molecular Formula:
    C9H9F2NO2
    Molecular Weight:
    201.2
    Specification Sheet SDS

  • L-3,4-Difluorophenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Phe(3,4-DiF)-OH
    Catalog Number:
    04117
    CAS Number:
    31105-90-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01075125
    Molecular Formula:
    C9H9F2NO2
    Molecular Weight:
    201.2
    Specification Sheet SDS

  • Fmoc-4-cyano-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Phe(4-CN)-OH
    Catalog Number:
    04115
    CAS Number:
    205526-34-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672560
    Molecular Formula:
    C25H20N2O4
    Molecular Weight:
    412.4
    Specification Sheet SDS

  • D-3,4-Difluorophenylalanine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    D-Phe(3,4-DiF)-OH
    Catalog Number:
    04118
    CAS Number:
    249648-08-6
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD01631986
    Molecular Formula:
    C9H9F2NO2
    Molecular Weight:
    201.2
    Specification Sheet SDS

  • Boc-3,4-difluoro-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Phe(3,4-DiF)-OH
    Catalog Number:
    04119
    CAS Number:
    198474-90-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672518
    Molecular Formula:
    C14H17F2NO4
    Molecular Weight:
    301.3
    Specification Sheet SDS

  • 4-Cyano-D-phenylalanine

    Purity:
    ≥ 99% (Chiral HPLC, HPLC)
    Synonym:
    D-Phe(4-CN)-OH
    Catalog Number:
    04111
    CAS Number:
    263396-44-7
    Purity Limit:
    ≥ 99% (Chiral HPLC, HPLC)
    MDL NO:
    MFCD00270364
    Molecular Formula:
    C10H10N2O2
    Molecular Weight:
    190.2
    Specification Sheet SDS

  • 3-Cyano-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    D-Phe(3-CN)-OH
    Catalog Number:
    04105
    CAS Number:
    263396-43-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01631985
    Molecular Formula:
    C10H10N2O2
    Molecular Weight:
    190.2
    Specification Sheet SDS

  • Boc-3-cyano-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Phe(3-CN)-OH
    Catalog Number:
    04107
    CAS Number:
    205445-56-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00797561
    Molecular Formula:
    C15H18N2O4
    Molecular Weight:
    290.3
    Specification Sheet SDS

  • Boc-3-cyano-L-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Phe(3-CN)-OH
    Catalog Number:
    04106
    CAS Number:
    131980-30-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00797560
    Molecular Formula:
    C15H18N2O4
    Molecular Weight:
    290.3
    Specification Sheet SDS

  • Fmoc-3-chloro-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Phe(3-Cl)-OH
    Catalog Number:
    04103
    CAS Number:
    205526-23-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00672549
    Molecular Formula:
    C24H20ClNO4
    Molecular Weight:
    421.9
    Specification Sheet SDS
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