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🌟 NEW: Customizable Macrocyclic Peptide Libraries

Unusual Amino Acids

2217
Filters

  • 3-(1-Naphthyl)-D-alanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    D-3-Ala(1-naphthyl)-OH
    Catalog Number:
    03400
    CAS Number:
    78306-92-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00038544
    Molecular Formula:
    C13H13NO2
    Molecular Weight:
    215.3
    Specification Sheet SDS

  • 3-(2-Naphthyl)-D-alanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    D-Ala(2-naphthyl)-OH
    Catalog Number:
    03401
    CAS Number:
    76985-09-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00038546
    Molecular Formula:
    C13H13NO2
    Molecular Weight:
    215.3
    Specification Sheet SDS

  • 4-Iodo-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Phe(4-I)-OH
    Catalog Number:
    03376
    CAS Number:
    24250-85-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00002602
    Molecular Formula:
    C9H10INO2
    Molecular Weight:
    291.1
    Specification Sheet SDS

  • DL-δ-Hydroxy-DL-lysine hydrochloride

    Purity:
    ≥ 99% (TLC)
    Synonym:
    DL-d-Hydroxy-DL-Lys-OH·HCl
    Catalog Number:
    03374
    CAS Number:
    13204-98-3
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00012878
    Molecular Formula:
    C6H14N2O3·HCl
    Molecular Weight:
    198.7
    Specification Sheet SDS

  • Diazoacetyl-DL-norleucine methyl ester

    Purity:
    ≥ 99% (TLC)
    Synonym:
    Diazoacetyl-DL-Nle-OMe
    Catalog Number:
    03329
    CAS Number:
    7013-09-4
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00077116
    Molecular Formula:
    C9H15N3O3
    Molecular Weight:
    213.2
    Specification Sheet SDS

  • S-(2-Aminoethyl-L-cysteine hydrochloride

    Purity:
    ≥ 99% (TLC)
    Synonym:
    L-Cys(aminoethyl)-OH·HCl
    Catalog Number:
    03295
    CAS Number:
    4099-35-8
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00036385
    Molecular Formula:
    C5H12N2O2S·HCl
    Molecular Weight:
    200.7
    Specification Sheet SDS

  • 4-Amino-L-phenylalanine hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Phe(4-NH2)-OH·HCl
    Catalog Number:
    03296
    CAS Number:
    62040-55-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00012986
    Molecular Formula:
    C9H12N2O2·HCl
    Molecular Weight:
    216.67
    Specification Sheet SDS

  • L-α-Aminosuberic acid

    Purity:
    ≥ 99% (TLC)
    Synonym:
    L-Asu-OH
    Catalog Number:
    03292
    CAS Number:
    4254-88-0
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00037224
    Molecular Formula:
    C8H15NO4
    Molecular Weight:
    189.21
    Specification Sheet SDS

  • DL-α-Aminoadipic acid

    Purity:
    ≥ 99% (Assay)
    Synonym:
    DL-Aad-OH
    Catalog Number:
    03290
    CAS Number:
    542-32-5
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00063119
    Molecular Formula:
    C6H11NO4
    Molecular Weight:
    161.2
    Specification Sheet SDS

  • Sarcosine tert-butyl ester hydrochloride

    Purity:
    ≥ 99.9% (HPLC)
    Synonym:
    Sar-OtBu·HCl
    Catalog Number:
    03134
    CAS Number:
    5616-81-9
    Purity Limit:
    ≥ 99.9% (HPLC)
    MDL NO:
    MFCD00080936
    Molecular Formula:
    C7H15NO2·HCl
    Molecular Weight:
    181.7
    Specification Sheet SDS

  • N-Phenyl glycine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    N-Ph-Gly-OH
    Catalog Number:
    03076
    CAS Number:
    103-01-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00014009
    Molecular Formula:
    C8H9NO2
    Molecular Weight:
    151.17
    Specification Sheet SDS

  • L-Phenylglycine methyl ester hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Phg-OMe·HCl
    Catalog Number:
    03127
    CAS Number:
    15028-39-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00077158
    Molecular Formula:
    C9H11NO2·HCl
    Molecular Weight:
    201.7
    Specification Sheet SDS

  • Fmoc-β-cyclohexyl-D-alanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Cha-OH
    Catalog Number:
    03004
    CAS Number:
    144701-25-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00151912
    Molecular Formula:
    C24H27NO4
    Molecular Weight:
    393.5
    Specification Sheet SDS

  • Sarcosine methyl ester hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Sar-OMe·HCl
    Catalog Number:
    03135
    CAS Number:
    13515-93-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00038876
    Molecular Formula:
    C4H9NO2·HCl
    Molecular Weight:
    139.6
    Specification Sheet SDS

  • trans-L-4-Hydroxyproline methyl ester hydrochloride

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    L-Hyp-OMe·HCl
    Catalog Number:
    03083
    CAS Number:
    40216-83-9
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00080855
    Molecular Formula:
    C6H11NO3·HCl
    Molecular Weight:
    181.6
    Specification Sheet SDS

  • Boc-(3S-1,2,3,4-tetrahydroisoquinoline-7-hydroxy-3-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Tic(OH)-OH
    Catalog Number:
    02869
    CAS Number:
    142335-42-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00671683
    Molecular Formula:
    C15H19NO5
    Molecular Weight:
    293.3
    Specification Sheet SDS

  • L-3,4-Dichlorophenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Phe(3,4-DiCl)-OH
    Catalog Number:
    02854
    CAS Number:
    52794-99-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00191203
    Molecular Formula:
    C9H9NO2Cl2
    Molecular Weight:
    234.2
    Specification Sheet SDS

  • Fmoc-3,4-dichloro-D-phenylalanine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Fmoc-D-Phe(3,4-DiCl)-OH
    Catalog Number:
    02880
    CAS Number:
    177966-58-4
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00273472
    Molecular Formula:
    C24H19Cl2NO4
    Molecular Weight:
    456.4
    Specification Sheet SDS

  • L-Octahydroindole-2-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Oic-OH
    Catalog Number:
    02860
    CAS Number:
    80875-98-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD07782125
    Molecular Formula:
    C9H15NO2
    Molecular Weight:
    169.2
    Specification Sheet SDS

  • 4-Chloro-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Phe(4-Cl)-OH
    Catalog Number:
    02862
    CAS Number:
    14091-08-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00079675
    Molecular Formula:
    C9H10ClNO2
    Molecular Weight:
    199.6
    Specification Sheet SDS

  • 4-Fluoro-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Phe(4-F)-OH
    Catalog Number:
    02863
    CAS Number:
    18125-46-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00063063
    Molecular Formula:
    C9H10FNO2
    Molecular Weight:
    183.2
    Specification Sheet SDS

  • 3-(3'-Pyridyl)-L-alanine dihydrochloride

    Purity:
    ≥ 99.5% (HPLC)
    Synonym:
    L-Ala(3'-pyridyl)-OH·2HCl
    Catalog Number:
    02853
    CAS Number:
    64090-98-8
    Purity Limit:
    ≥ 99.5% (HPLC)
    MDL NO:
    MFCD00191178
    Molecular Formula:
    C8H10N2O2
    Molecular Weight:
    166.17
    Specification Sheet SDS

  • 3-(2-Naphthyl)-L-alanine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    L-Ala(2-naphthyl)-OH
    Catalog Number:
    02852
    CAS Number:
    58438-03-2
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00066087
    Molecular Formula:
    C13H13NO2
    Molecular Weight:
    215.3
    Specification Sheet SDS

  • L-3,5-Dibromotyrosine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    3,5-Dibromo-L-Tyr-OH
    Catalog Number:
    02856
    CAS Number:
    300-38-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037204
    Molecular Formula:
    C9H9Br2NO3
    Molecular Weight:
    339.0
    Specification Sheet SDS

  • β-Cyclohexyl-D-alanine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    D-Cha-OH
    Catalog Number:
    02844
    CAS Number:
    58717-02-5
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00153485
    Molecular Formula:
    C9H17NO2
    Molecular Weight:
    171.2
    Specification Sheet SDS

  • D-3,4-Dichlorophenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Phe(3,4-DiCl)-OH
    Catalog Number:
    02855
    CAS Number:
    52794-98-6
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00671682
    Molecular Formula:
    C9H9NO2Cl2
    Molecular Weight:
    234.2
    Specification Sheet SDS

  • L-Propargylglycine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    L-Pra-OH
    Catalog Number:
    02726
    CAS Number:
    23235-01-0
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00077855
    Molecular Formula:
    C5H7NO2
    Molecular Weight:
    113.1
    Specification Sheet SDS

  • Boc-O-3-bromobenzyl-3,5-diiodo-L-tyrosine

    Purity:
    ≥ 98%
    Synonym:
    Boc-3,5-diiodo-L-Tyr(3'-BrBzl)-OH
    Catalog Number:
    02740
    CAS Number:
    63570-43-4
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00037099
    Molecular Formula:
    C21H22BrI2NO5
    Molecular Weight:
    702.1
    Specification Sheet SDS

  • Boc-O-dimethylphospho-L-tyrosine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Tyr(PO3Me2)-OH
    Catalog Number:
    02737
    CAS Number:
    92264-99-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00143865
    Molecular Formula:
    C16H24NO8P
    Molecular Weight:
    389.2
    Specification Sheet SDS

  • Boc-O-dibenzylphospho-L-serine

    Purity:
    ≥ 98% (Chiral HPLC)
    Synonym:
    Boc-L-Ser(PO3Bzl2)-OH
    Catalog Number:
    02727
    CAS Number:
    90013-45-9
    Purity Limit:
    ≥ 98% (Chiral HPLC)
    MDL NO:
    MFCD00080284
    Molecular Formula:
    C22H28NO8P
    Molecular Weight:
    465.3
    Specification Sheet SDS

  • Boc-3,4-dichloro-D-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Phe(3,4-DiCl)-OH
    Catalog Number:
    02721
    CAS Number:
    114873-13-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00151887
    Molecular Formula:
    C14H17Cl2NO4
    Molecular Weight:
    334.2
    Specification Sheet SDS

  • 4-Methylbenzyl-3-thio-propionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    3-(4-Methylbenzyl)thiopropionic acid
    Catalog Number:
    02724
    CAS Number:
    78981-22-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00077142
    Molecular Formula:
    C11H14SO2
    Molecular Weight:
    210.3
    Specification Sheet SDS

  • Boc-4-nitro-L-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Phe(4-NO2)-OH
    Catalog Number:
    02723
    CAS Number:
    33305-77-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00038128
    Molecular Formula:
    C14H18N2O6
    Molecular Weight:
    310.3
    Specification Sheet SDS

  • Boc-3,4-dichloro-L-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Phe(3,4-DiCl)-OH
    Catalog Number:
    02722
    CAS Number:
    80741-39-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00273436
    Molecular Formula:
    C14H17Cl2NO4
    Molecular Weight:
    334.2
    Specification Sheet SDS

  • Fmoc-4-aminobenzoic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-4-Abz-OH
    Catalog Number:
    02690
    CAS Number:
    185116-43-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00144888
    Molecular Formula:
    C22H17NO4
    Molecular Weight:
    359.4
    Specification Sheet SDS

  • Boc-4-amino-L-phenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Phe(4-NH2)-OH
    Catalog Number:
    02720
    CAS Number:
    55533-24-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00038139
    Molecular Formula:
    C14H20N2O4
    Molecular Weight:
    280.3
    Specification Sheet SDS

  • Boc-L-octahydroindole-2-carboxylic acid

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Boc-L-Oic-OH
    Catalog Number:
    02717
    CAS Number:
    109523-13-9
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD09750486
    Molecular Formula:
    C14H23NO4
    Molecular Weight:
    269.3
    Specification Sheet SDS

  • Boc-L-citrulline

    Purity:
    ≥ 89% (Assay by titration)
    Synonym:
    Boc-L-Cit-OH
    Catalog Number:
    02699
    CAS Number:
    45234-13-7
    Purity Limit:
    ≥ 89% (Assay by titration)
    MDL NO:
    MFCD00080271
    Molecular Formula:
    C11H21N3O5
    Molecular Weight:
    275.3
    Specification Sheet SDS

  • Boc-S-4-methylbenzyl-L-homocysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-HomoCys(pMeBzl)-OH
    Catalog Number:
    02707
    CAS Number:
    201419-15-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00080372
    Molecular Formula:
    C17H25NO4S
    Molecular Weight:
    339.4
    Specification Sheet SDS

  • Boc-S-benzyl-L-homocysteine

    Purity:
    ≥ 98% (TLC)
    Synonym:
    Boc-L-HomoCys(Bzl)-OH
    Catalog Number:
    02706
    CAS Number:
    16947-99-2
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00080371
    Molecular Formula:
    C16H23NO4S
    Molecular Weight:
    325.4
    Specification Sheet SDS

  • Boc-4-aminobenzoic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-4-Abz-OH
    Catalog Number:
    02689
    CAS Number:
    66493-39-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00037428
    Molecular Formula:
    C12H15NO4
    Molecular Weight:
    237.3
    Specification Sheet SDS

  • Boc-3-(3'-pyridyl)-D-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Ala(3'-pyridyl)-OH
    Catalog Number:
    02685
    CAS Number:
    98266-33-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00076901
    Molecular Formula:
    C13H18N2O4
    Molecular Weight:
    266.3
    Specification Sheet SDS

  • Boc-3-(3'-pyridyl)-L-alanine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Boc-L-Ala(3'-pyridyl)-OH
    Catalog Number:
    02686
    CAS Number:
    117142-26-4
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00079681
    Molecular Formula:
    C13H18N2O4
    Molecular Weight:
    266.3
    Specification Sheet SDS

  • Boc-N-methyl-L-norleucine (oil)

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-N-Me-L-Nle-OH
    Catalog Number:
    02664
    CAS Number:
    117903-25-0
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00153391
    Molecular Formula:
    C12H23NO4
    Molecular Weight:
    245.3
    Specification Sheet SDS

  • Acetyl-L-trans-4-hydroxyproline

    Purity:
    ≥ 95% (TLC)
    Synonym:
    Ac-L-Hyp-OH
    Catalog Number:
    02614
    CAS Number:
    33996-33-7
    Purity Limit:
    ≥ 95% (TLC)
    MDL NO:
    MFCD00037339
    Molecular Formula:
    C7H11NO4
    Molecular Weight:
    173.2
    Specification Sheet SDS

  • L-Thiaproline

    Hazmat
    Purity:
    ≥ 99% (Assay)
    Synonym:
    L-Thz-OH
    Hazmat
    Catalog Number:
    02603
    CAS Number:
    34592-47-7
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00005212
    Molecular Formula:
    C4H7NO2S
    Molecular Weight:
    133.2
    Specification Sheet SDS

  • Boc-(3R-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-D-Tic-OH
    Catalog Number:
    02600
    CAS Number:
    115962-35-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00143818
    Molecular Formula:
    C15H19NO4
    Molecular Weight:
    277.3
    Specification Sheet SDS

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

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Tic-OH
    Catalog Number:
    02597
    CAS Number:
    74163-81-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00144533
    Molecular Formula:
    C10H11NO2
    Molecular Weight:
    177.2
    Specification Sheet SDS

  • 3R-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid

    Purity:
    ≥ 99% (assay)
    Synonym:
    D-Tic-OH
    Catalog Number:
    02598
    CAS Number:
    103733-65-9
    Purity Limit:
    ≥ 99% (assay)
    MDL NO:
    MFCD00144038
    Molecular Formula:
    C10H11NO2
    Molecular Weight:
    177.2
    Specification Sheet SDS

  • Trityl-L- homoserine

    Purity:
    98+%
    Synonym:
    Trt-L-HomoSer-OH
    Catalog Number:
    02595
    CAS Number:
    83427-79-6
    Purity Limit:
    98+%
    MDL NO:
    MFCD00235909
    Molecular Formula:
    C23H23NO3
    Molecular Weight:
    361.44
    SDS
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