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Unusual Amino Acids

2217
Filters

  • 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
  • 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
  • (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
  • (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
  • 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
  • D-Penicillamine

    Grade:
    USP
    Purity:
    98 - 101% (Assay on dried basis)
    Synonym:
    D-Pen-OH
    Catalog Number:
    02591
    Grade:
    USP
    CAS Number:
    52-67-5
    Purity Limit:
    98 - 101% (Assay on dried basis)
    MDL NO:
    MFCD00064302
    Molecular Formula:
    C5H11NO2S
    Molecular Weight:
    149.2
  • Boc-S-4-methylbenzyl-L-penicillamine

    Purity:
    99%
    Synonym:
    Boc-L-Pen(pMeBzl)-OH
    Catalog Number:
    02592
    CAS Number:
    198474-61-2
    Purity Limit:
    99%
    MDL NO:
    MFCD00671677
    Molecular Formula:
    C18H27NO4S
    Molecular Weight:
    353.4
  • Boc-S-4-methylbenzyl-D-penicillamine dicyclohexylammonium salt

    Purity:
    ≥ 98
    Synonym:
    Boc-D-Pen(pMeBzl)-OH·DCHA
    Catalog Number:
    02593
    CAS Number:
    198470-36-9
    Purity Limit:
    ≥ 98
    MDL NO:
    MFCD00235908
    Molecular Formula:
    C18H27NO4S·C12H23N
    Molecular Weight:
    534.7
  • L-Penicillamine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    L-Pen-OH
    Catalog Number:
    02590
    CAS Number:
    1113-41-3
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00064303
    Molecular Formula:
    C5H11NO2S
    Molecular Weight:
    149.2
  • Boc-3-(2-naphthyl)-D-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Ala(2-naphthyl)-OH
    Catalog Number:
    02587
    CAS Number:
    76985-10-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00076900
    Molecular Formula:
    C18H21NO4
    Molecular Weight:
    315.2
  • Boc-3-(1-naphthyl)-D-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Ala(1-naphthyl)-OH
    Catalog Number:
    02583
    CAS Number:
    76932-48-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00079668
    Molecular Formula:
    C18H21NO4
    Molecular Weight:
    315.2
  • Fmoc-3-(1-naphthyl)-D-alanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Ala(1-naphthyl)-OH
    Catalog Number:
    02585
    CAS Number:
    138774-93-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00191200
    Molecular Formula:
    C28H23NO4
    Molecular Weight:
    437.5
  • Boc-3-(2-naphthyl)-L-alanine

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Boc-L-Ala(2-naphthyl)-OH
    Catalog Number:
    02586
    CAS Number:
    58438-04-3
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00079671
    Molecular Formula:
    C18H21NO4
    Molecular Weight:
    315.2
  • Boc-3-(1-naphthyl)-L-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Ala(1-naphthyl)-OH
    Catalog Number:
    02582
    CAS Number:
    55447-00-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00085377
    Molecular Formula:
    C18H21NO4
    Molecular Weight:
    315.2
  • Boc-4-fluoro-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Phe(4-F)-OH
    Catalog Number:
    02574
    CAS Number:
    57292-45-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00079669
    Molecular Formula:
    C14H18FNO4
    Molecular Weight:
    283.2
  • L-Homophenylalanine

    Purity:
    ≥ 99% (HPLC, Chiral purity)
    Synonym:
    L-HomoPhe-OH
    Catalog Number:
    02577
    CAS Number:
    943-73-7
    Purity Limit:
    ≥ 99% (HPLC, Chiral purity)
    MDL NO:
    MFCD00002619
    Molecular Formula:
    C10H13NO2
    Molecular Weight:
    179.22
  • D-Homophenylalanine

    Purity:
    ≥ 99%
    Synonym:
    D-HomoPhe-OH
    Catalog Number:
    02578
    CAS Number:
    82795-51-5
    Purity Limit:
    ≥ 99%
    MDL NO:
    MFCD00063091
    Molecular Formula:
    C10H13NO2
    Molecular Weight:
    179.22
  • Fmoc-L-homophenylalanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-HomoPhe-OH
    Catalog Number:
    02579
    CAS Number:
    132684-59-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00077046
    Molecular Formula:
    C25H23NO4
    Molecular Weight:
    401.45
  • 2-Fluoro-L-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    L-Phe(2-F)-OH
    Catalog Number:
    02570
    CAS Number:
    19883-78-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00066448
    Molecular Formula:
    C9H10FNO2
    Molecular Weight:
    183.2
  • 3-Fluoro-L-phenylalanine

    Purity:
    ≥ 98% (HPLC, Chiral HPLC)
    Synonym:
    L-Phe(3-F)-OH
    Catalog Number:
    02571
    CAS Number:
    19883-77-3
    Purity Limit:
    ≥ 98% (HPLC, Chiral HPLC)
    MDL NO:
    MFCD00066450
    Molecular Formula:
    C9H10FNO2
    Molecular Weight:
    183.2
  • Boc-4-chloro-D-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Phe(4-Cl)-OH
    Catalog Number:
    02567
    CAS Number:
    57292-44-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00076978
    Molecular Formula:
    C14H18ClNO4
    Molecular Weight:
    299.8
  • L-(+)-2-Cyclohexylglycine hydrochloride

    Purity:
    ≥ 99% (Titration)
    Synonym:
    L-Chg-OH·HCl
    Catalog Number:
    02561
    CAS Number:
    14328-51-9
    Purity Limit:
    ≥ 99% (Titration)
    MDL NO:
    MFCD00050539
    Molecular Formula:
    C8H15NO2·HCl
    Molecular Weight:
    193.7
  • Boc-(3S,4S)-4-amino-3-hydroxy-5-phenylpentanoic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-AHPPA-OH
    Catalog Number:
    02559
    CAS Number:
    72155-48-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00065553
    Molecular Formula:
    C16H23NO5
    Molecular Weight:
    309.4
  • Boc-D-α-aminobutyric acid dicyclohexylammonium salt

    Purity:
    0.99
    Synonym:
    Boc-D-Abu-OH·DCHA
    Catalog Number:
    02558
    CAS Number:
    27494-47-9
    Purity Limit:
    0.99
    MDL NO:
    MFCD00235886
    Molecular Formula:
    C9H17NO4·C12H23N
    Molecular Weight:
    384.5
  • β-Cyclohexyl-L-alanine

    Purity:
    ≥ 99% (Chiral purity, HPLC)
    Synonym:
    L-Cha-OH
    Catalog Number:
    02560
    CAS Number:
    27527-05-5
    Purity Limit:
    ≥ 99% (Chiral purity, HPLC)
    MDL NO:
    MFCD00153484
    Molecular Formula:
    C9H17NO2
    Molecular Weight:
    171.2
  • Fmoc-β-(2-thienyl)-D-alanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Ala-3-(2-thienyl)-OH
    Catalog Number:
    02457
    CAS Number:
    201532-42-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00065677
    Molecular Formula:
    C22H19NO4S
    Molecular Weight:
    393.4
  • Fmoc-β-(2-thienyl)-L-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Ala-3-(2-thienyl)-OH
    Catalog Number:
    02456
    CAS Number:
    130309-35-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00065676
    Molecular Formula:
    C22H19NO4S
    Molecular Weight:
    393.4
  • Fmoc-3,4-dehydro-L-proline

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-3,4-dehydro-L-Pro-OH
    Catalog Number:
    02451
    CAS Number:
    135837-63-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00151940
    Molecular Formula:
    C20H17NO4
    Molecular Weight:
    335.4
  • Fmoc-D-α-tert-butylglycine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Fmoc-D-α-tert-butyl-Gly-OH
    Catalog Number:
    02419
    CAS Number:
    198543-64-5
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00065650
    Molecular Formula:
    C21H23NO4
    Molecular Weight:
    353.5
  • Fmoc-L-trans-4-hydroxyproline

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Hyp-OH
    Catalog Number:
    02423
    CAS Number:
    88050-17-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00151929
    Molecular Formula:
    C20H19NO5
    Molecular Weight:
    353.4
  • Z-L-pyroglutamic acid

    Purity:
    ≥ 99% (Chiral HPLC, HPLC)
    Synonym:
    Z-L-Pyr-OH
    Catalog Number:
    02244
    CAS Number:
    32159-21-0
    Purity Limit:
    ≥ 99% (Chiral HPLC, HPLC)
    MDL NO:
    MFCD00037352
    Molecular Formula:
    C13H13NO5
    Molecular Weight:
    263.2
  • Z-L-phenylglycine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Z-L-Phg-OH
    Catalog Number:
    02236
    CAS Number:
    53990-33-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00077033
    Molecular Formula:
    C16H15NO4
    Molecular Weight:
    285.3
  • Z-D-pyroglutamic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Z-D-Pyr-OH
    Catalog Number:
    02245
    CAS Number:
    78339-57-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00077036
    Molecular Formula:
    C13H13NO5
    Molecular Weight:
    263.2
  • Z-L-pyroglutamic acid 4-nitrophenyl ester

    Purity:
    ≥ 98% (TLC)
    Synonym:
    Z-L-Pyr-ONp
    Catalog Number:
    02246
    CAS Number:
    40356-52-3
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00077037
    Molecular Formula:
    C19H16N2O7
    Molecular Weight:
    384.34
  • Fmoc-S-acetamidomethyl-L-penicillamine

    Purity:
    ≥ 96% (HPLC)
    Synonym:
    Fmoc-L-Pen(Acm)-OH
    Catalog Number:
    02062
    CAS Number:
    201531-76-2
    Purity Limit:
    ≥ 96% (HPLC)
    MDL NO:
    MFCD00151935
    Molecular Formula:
    C23H26N2O5S
    Molecular Weight:
    442.5
  • Z-L-norleucine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Z-L-Nle-OH (oil)
    Catalog Number:
    02217
    CAS Number:
    39608-30-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00063170
    Molecular Formula:
    C14H19NO4
    Molecular Weight:
    265.31
  • DL-Norleucine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    DL-Nle-OH
    Catalog Number:
    02004
    CAS Number:
    616-06-8
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00064422
    Molecular Formula:
    C6H13NO2
    Molecular Weight:
    131.18
  • Z-L-trans-4-hydroxyproline

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Z-L-Hyp-OH
    Catalog Number:
    02190
    CAS Number:
    13504-85-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037329
    Molecular Formula:
    C13H15NO5
    Molecular Weight:
    265.3
  • Z-L-α-aminobutyric acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Z-L-Abu-OH
    Catalog Number:
    02127
    CAS Number:
    42918-86-5
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00077006
    Molecular Formula:
    C12H15NO4
    Molecular Weight:
    237.3
  • L-Homoserine

    Purity:
    ≥ 98% (Assay by titration)
    Synonym:
    L-HomoSer-OH
    Catalog Number:
    02051
    CAS Number:
    672-15-1
    Purity Limit:
    ≥ 98% (Assay by titration)
    MDL NO:
    MFCD00063090
    Molecular Formula:
    C4H9NO3
    Molecular Weight:
    119.12
  • Fmoc-S-acetamidomethyl-D-penicillamine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-D-Pen(Acm)-OH
    Catalog Number:
    02063
    CAS Number:
    201531-77-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00151934
    Molecular Formula:
    C23H26N2O5S
    Molecular Weight:
    442.5
  • Z-6-aminohexanoic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Z-6-aminocaproic acid
    Catalog Number:
    02128
    CAS Number:
    1947-00-8
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00004423
    Molecular Formula:
    C14H19NO4
    Molecular Weight:
    265.3
  • Boc-L-homophenylalanine

    Purity:
    ≥ 98% (Assay)
    Synonym:
    Boc-L-HomoPhe-OH
    Catalog Number:
    01773
    CAS Number:
    100564-78-1
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00076904
    Molecular Formula:
    C15H21NO4
    Molecular Weight:
    279.33
  • L-Homocystine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    (H-L-HomoCys-OH)2
    Catalog Number:
    01455
    CAS Number:
    626-72-2
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00020391
    Molecular Formula:
    C8H16N2O4S2
    Molecular Weight:
    268.3
  • L-α-Aminobutyric acid

    Purity:
    98 - 102% (Assay by titration)
    Synonym:
    L-Abu-OH
    Catalog Number:
    01432
    CAS Number:
    1492-24-6
    Purity Limit:
    98 - 102% (Assay by titration)
    MDL NO:
    MFCD00064415
    Molecular Formula:
    C4H9NO2
    Molecular Weight:
    103.1
  • Boc-β-(2-thienyl)-D-alanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-D-Ala-3-(2-thienyl)-OH
    Catalog Number:
    01383
    CAS Number:
    78452-55-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00065591
    Molecular Formula:
    C12H17NO4S
    Molecular Weight:
    271.3
  • Boc-(3S,4S)-4-amino-3-hydroxy-6-methylheptanoic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-Sta(3S,4S-OH
    Catalog Number:
    01381
    CAS Number:
    58521-49-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00063180
    Molecular Formula:
    C13H25NO5
    Molecular Weight:
    275.36
  • Boc-β-(2-thienyl)-L-alanine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Ala-3-(2-thienyl)-OH
    Catalog Number:
    01382
    CAS Number:
    56675-37-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00062051
    Molecular Formula:
    C12H17NO4S
    Molecular Weight:
    271.3
  • Boc-3,4-dehydro-L-proline

    Hazmat
    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-3,4-dehydro-L-Pro-OH
    Hazmat
    Catalog Number:
    01377
    CAS Number:
    51154-06-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037896
    Molecular Formula:
    C10H15NO4
    Molecular Weight:
    213.23
  • Boc-L-norvaline

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Nva-OH
    Catalog Number:
    01371
    CAS Number:
    53308-95-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00037268
    Molecular Formula:
    C10H19NO4
    Molecular Weight:
    217.28