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Peptide Chemistry

Peptide Chemistry

6121
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.

  • 2R-(+)-Propanolol hydrochloride

    Purity:
    ≥ 95%
    Synonym:
    (R-(+)-1-[(1-Methylethyl)amino]-3-(1-naphthalenyloxy)-2-propanol hydrochloride
    Catalog Number:
    04465
    CAS Number:
    13071-11-9
    Purity Limit:
    ≥ 95%
    MDL NO:
    MFCD00064546
    Molecular Formula:
    C16H21NO2·HCl
    Molecular Weight:
    295.81
  • Bz-Gly-His-Leu-OH

    Synonym:
    Hippuryl-histidyl-leucine
    Catalog Number:
    04492
    CAS Number:
    31373-65-6
    MDL NO:
    MFCD00005205
    Molecular Formula:
    C21H27N5O5
    Molecular Weight:
    429.48
  • D-Proline amide

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Pro-NH2
    Catalog Number:
    04445
    CAS Number:
    62937-45-5
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00153457
    Molecular Formula:
    C5H10N2O
    Molecular Weight:
    114.1
  • 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
  • D-Valine amide hydrochloride

    Purity:
    ≥ 98% (assay)
    Synonym:
    D-Val-NH2·HCl
    Catalog Number:
    04459
    CAS Number:
    133170-58-8
    Purity Limit:
    ≥ 98% (assay)
    MDL NO:
    MFCD00270619
    Molecular Formula:
    C5H12N2O·HCl
    Molecular Weight:
    152.6
  • 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
  • 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
  • Nα-Z-Nα-methyl-L-phenylalanine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Z-N-Me-L-Phe-OH
    Catalog Number:
    04444
    CAS Number:
    2899-07-2
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00153393
    Molecular Formula:
    C18H19NO4
    Molecular Weight:
    313.3
  • L-Valine allyl ester 4-toluenesulfonate salt

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Val-OAll·TosOH
    Catalog Number:
    04458
    CAS Number:
    88224-02-6
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00077953
    Molecular Formula:
    C8H15NO2·C7H8O3S
    Molecular Weight:
    329.4
  • L-Tyrosine allyl ester 4-toluenesulfonate salt

    Purity:
    99 - 101% (Assay by titration)
    Synonym:
    L-Tyr-OAll·TosOH
    Catalog Number:
    04456
    CAS Number:
    125441-05-6
    Purity Limit:
    99 - 101% (Assay by titration)
    MDL NO:
    MFCD00043378
    Molecular Formula:
    C12H15NO3·C7H8O3S
    Molecular Weight:
    393.5
  • N-Methyl-D-valine hydrochloride

    Purity:
    ≥ 98% (TLC)
    Synonym:
    N-Me-D-Val-OH·HCl
    Catalog Number:
    04461
    CAS Number:
    210830-32-3
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00270621
    Molecular Formula:
    C6H13NO2·HCl
    Molecular Weight:
    167.7
  • 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
  • O-tert-Butyl-L-tyrosine t-butyl ester hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Tyr(tBu)-OtBu·HCl
    Catalog Number:
    04457
    CAS Number:
    17083-23-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00058002
    Molecular Formula:
    C17H27NO3·HCl
    Molecular Weight:
    329.8
  • L-Lysine amide dihydrochloride

    Purity:
    ≥ 95%
    Synonym:
    L-Lys-NH2·2HCl
    Catalog Number:
    04439
    CAS Number:
    51127-08-3
    Purity Limit:
    ≥ 95%
    MDL NO:
    MFCD00058287
    Molecular Formula:
    C6H15N3O·2HCl
    Molecular Weight:
    218.2
  • Nin-Boc-D-tryptophan

    Purity:
    ≥ 98% (TLC)
    Synonym:
    D-Trp(Boc)-OH
    Catalog Number:
    04455
    CAS Number:
    201290-11-1
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00237295
    Molecular Formula:
    C16H20N2O4
    Molecular Weight:
    304.4
  • D-Proline tert-butyl ester hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Pro-OtBu·HCl
    Catalog Number:
    04446
    CAS Number:
    184719-80-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00153460
    Molecular Formula:
    C9H17NO2·HCl
    Molecular Weight:
    207.7
  • 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
  • L-Phenylalanine allyl ester 4-toluenesulfonate salt

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Phe-OAll·TosOH
    Catalog Number:
    04441
    CAS Number:
    88224-00-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00043306
    Molecular Formula:
    C12H15NO2·C7H8O3S
    Molecular Weight:
    377.5
  • 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
  • Nd-Trityl-D-glutamine hydrate

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Gln(Trt)-OH·H2O
    Catalog Number:
    04432
    CAS Number:
    200625-76-9
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00153433
    Molecular Formula:
    C24H24N2O3·H2O
    Molecular Weight:
    406.5
  • L-Proline methyl amide hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Pro-NHMe·HCl
    Catalog Number:
    04442
    CAS Number:
    33208-98-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00153461
    Molecular Formula:
    C6H12N2O·HCl
    Molecular Weight:
    164.66
  • 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
  • Nα,Nim-Ditrityl-L-histidine

    Purity:
    ≥ 99% (TLC)
    Synonym:
    Trt-L-His(Trt)-OH
    Catalog Number:
    04434
    CAS Number:
    74853-62-6
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00153443
    Molecular Formula:
    C44H37N3O2
    Molecular Weight:
    639.8
  • 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
  • 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
  • Catalog Number:
    04436
    CAS Number:
    88224-05-9
    MDL NO:
    MFCD00043317
    Molecular Formula:
    C9H17NO2·C7H8O3S
    Molecular Weight:
    343.4
  • Nδ-Trityl-L-glutamine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Gln(Trt)-OH
    Catalog Number:
    04431
    CAS Number:
    102747-84-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00237060
    Molecular Formula:
    C24H24N2O3
    Molecular Weight:
    388.5
  • Glycine tert-butyl ester acetate salt

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Gly-OtBu·AcOH
    Catalog Number:
    04433
    CAS Number:
    38024-18-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00153441
    Molecular Formula:
    C6H13NO2·C2H4O2
    Molecular Weight:
    191.3
  • L-Aspartic acid α-amide hydrochloride

    Purity:
    ≥ 98% (TLC)
    Synonym:
    L-Asp-NH2·HCl
    Catalog Number:
    04418
    CAS Number:
    200260-37-3
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD06795769
    Molecular Formula:
    C4H8N2O3·HCl
    Molecular Weight:
    168.6
  • S-Acetamidomethyl-D-cysteine hydrochloride

    Purity:
    ≥ 98%
    Synonym:
    S-Acetamidomethyl-D-cysteine hydrochloride
    Catalog Number:
    04425
    CAS Number:
    200352-41-6
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00043380
    Molecular Formula:
    C6H12N2O3S·HCl
    Molecular Weight:
    228.7
  • 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
  • Palmitoyl-S-[2,3-bis(palmitoyloxy)-(2RS-propyl]-L-cysteine

    Purity:
    ≥ 98% (TLC)
    Synonym:
    Pam-L-Cys[(2,3-bis-PamO)Pr]-OH
    Catalog Number:
    04423
    CAS Number:
    70512-46-8
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00153468
    Molecular Formula:
    C54H103NO7S
    Molecular Weight:
    910.5
  • Nγ-Trityl-L-asparagine hydrate

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    L-Asn(Trt)-OH·H2O
    Catalog Number:
    04416
    CAS Number:
    132388-58-0
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD00153422
    Molecular Formula:
    C23H22N2O3·H2O
    Molecular Weight:
    392.4
  • Acetyl-DL-proline

    Purity:
    ≥ 99.5% (HPLC)
    Synonym:
    Ac-DL-Pro-OH
    Catalog Number:
    04391
    CAS Number:
    1074-79-9
    Purity Limit:
    ≥ 99.5% (HPLC)
    MDL NO:
    MFCD00063230
    Molecular Formula:
    C7H11NO3
    Molecular Weight:
    157.2
  • 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
  • Nw-(2,2,5,7,8-Pentamethylchroman-6-sulfonyl)-L-arginine

    Purity:
    ≥ 99% (TLC)
    Synonym:
    L-Arg(Pmc)-OH
    Catalog Number:
    04414
    CAS Number:
    112160-37-9
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00153419
    Molecular Formula:
    C20H32N4O5S
    Molecular Weight:
    440.56
  • Acetyl-L-tyrosine hydrazide

    Purity:
    ≥ 98% (Assay)
    Synonym:
    Ac-L-Tyr-NHNH2
    Catalog Number:
    04401
    CAS Number:
    2381-07-9
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00025121
    Molecular Formula:
    C11H15N3O3
    Molecular Weight:
    237.26
  • L-Aspartic acid α-tert-butyl ester hydrochloride

    Purity:
    ≥ 99.5% (Chiral purity)
    Synonym:
    L-Asp-OtBu·HCl
    Catalog Number:
    04419
    CAS Number:
    176164-02-6
    Purity Limit:
    ≥ 99.5% (Chiral purity)
    MDL NO:
    MFCD00153424
    Molecular Formula:
    C8H15NO4·HCl
    Molecular Weight:
    225.67
  • Nω-(2,2,5,7,8-Pentamethylchroman-6-sulfonyl)-D-arginine

    Purity:
    ≥ 98% (TLC)
    Synonym:
    D-Arg(Pmc)-OH
    Catalog Number:
    04415
    CAS Number:
    191869-60-0
    Purity Limit:
    ≥ 98% (TLC)
    MDL NO:
    MFCD00153420
    Molecular Formula:
    C20H32N4O5S
    Molecular Weight:
    440.56
  • Acetyl-O-tert-butyl-L-threonine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Ac-L-Thr(tBu)-OH
    Catalog Number:
    04397
    CAS Number:
    163277-80-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00236771
    Molecular Formula:
    C10H19NO4
    Molecular Weight:
    217.27
  • Acetyl-L-tyrosine methyl amide

    Purity:
    ≥ 99% (TLC)
    Synonym:
    Ac-L-Tyr-NHMe
    Catalog Number:
    04400
    CAS Number:
    6367-14-2
    Purity Limit:
    ≥ 99% (TLC)
    MDL NO:
    MFCD00237518
    Molecular Formula:
    C12H16N2O3
    Molecular Weight:
    236.28
  • Acetyl-L-serine methyl ester

    Purity:
    ≥ 98%
    Synonym:
    Ac-L-Ser-OMe
    Catalog Number:
    04395
    CAS Number:
    54322-41-7
    Purity Limit:
    ≥ 98%
    MDL NO:
    MFCD00038508
    Molecular Formula:
    C6H11NO4
    Molecular Weight:
    161.16
  • Acetyl-O-methyl-L-tyrosine methyl ester

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Ac-L-Tyr(Me)-OMe
    Catalog Number:
    04379
    CAS Number:
    17355-24-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00069961
    Molecular Formula:
    C13H17NO4
    Molecular Weight:
    251.28
  • N-Methyl-D-alanine hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    N-Me-D-Ala-OH·HCl
    Catalog Number:
    04405
    CAS Number:
    29475-64-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00797880
    Molecular Formula:
    C4H9NO2·HCl
    Molecular Weight:
    139.62
  • Acetyl-D-phenylalanine methyl ester

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Ac-D-Phe-OMe
    Catalog Number:
    04384
    CAS Number:
    21156-62-7
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00026172
    Molecular Formula:
    C12H15NO3
    Molecular Weight:
    221.3
  • Nα-Acetyl-L-lysine 4-nitroanilide hydrochloride

    Purity:
    ≥ 97.5% (HPLC)
    Synonym:
    Ac-L-Lys-pNA·HCl
    Catalog Number:
    04371
    CAS Number:
    50931-35-6
    Purity Limit:
    ≥ 97.5% (HPLC)
    MDL NO:
    MFCD01631996
    Molecular Formula:
    C14H20N4O4·HCl
    Molecular Weight:
    344.8
  • Acetyl-O-tert-butyl-L-tyrosine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Acetyl-O-tert-butyl-L-tyrosine
    Catalog Number:
    04402
    CAS Number:
    201292-99-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00236772
    Molecular Formula:
    C15H21NO4
    Molecular Weight:
    279.34
  • Acetyl-DL-phenylalanine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Ac-DL-Phe-OH
    Catalog Number:
    04381
    CAS Number:
    2901-75-9
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00063157
    Molecular Formula:
    C11H13NO3
    Molecular Weight:
    207.2
  • Acetyl-D-tyrosine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Ac-D-Tyr-OH
    Catalog Number:
    04399
    CAS Number:
    19764-32-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00063037
    Molecular Formula:
    C11H13NO4
    Molecular Weight:
    223.22
  • 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