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Cysteine [Cys] Amino Acids & Derivatives

121
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  • Fmoc-S-4-methoxytrityl-L-cysteine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Cys(Mmt)-OH
    Catalog Number:
    03699
    CAS Number:
    177582-21-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00270541
    Molecular Formula:
    C38H33NO5S
    Molecular Weight:
    615.7
    Specification Sheet SDS

  • S-Trityl-L-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Cys(Trt)-OH
    Catalog Number:
    01404
    CAS Number:
    2799-07-7
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00002611
    Molecular Formula:
    C22H21NO2S
    Molecular Weight:
    363.5
    Specification Sheet SDS

  • Fmoc-S-trityl-L-cysteine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Cys(Trt)-OH
    Catalog Number:
    00177
    CAS Number:
    103213-32-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00038538
    Molecular Formula:
    C37H31NO4S
    Molecular Weight:
    585.7
    Specification Sheet SDS

  • Boc-S-tert-butylthio-L-cysteine

    Purity:
    ≥ 99.5% (Chiral purity)
    Synonym:
    Boc-L-Cys(StBu)-OH
    Catalog Number:
    12863
    CAS Number:
    30044-61-2
    Purity Limit:
    ≥ 99.5% (Chiral purity)
    MDL NO:
    MFCD00084687
    Molecular Formula:
    C12H23NO4S2
    Molecular Weight:
    309.45
    Specification Sheet SDS

  • Fmoc-S-tert-butoxycarbonylmethyl-L-cysteine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Fmoc-L-Cys(t-butoxycarbonylmethyl)-OH
    Catalog Number:
    11626
    CAS Number:
    269730-62-3
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD02094571
    Molecular Formula:
    C24H27NO6S
    Molecular Weight:
    457.55
    Specification Sheet SDS

  • Fmoc-S-trityl-D-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Cys(Trt)-OH
    Catalog Number:
    02065
    CAS Number:
    167015-11-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00151922
    Molecular Formula:
    C37H31NO4S
    Molecular Weight:
    585.7
    Specification Sheet SDS

  • Acetyl-L-cysteine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    Ac-L-Cys-OH
    Catalog Number:
    00839
    CAS Number:
    616-91-1
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00004880
    Molecular Formula:
    C5H9NO3S
    Molecular Weight:
    163.2
    Specification Sheet SDS

  • Acetyl-L-cysteine, from Non-animal source

    Grade:
    Meets USP specification (Manufactured as per GMP)
    Purity:
    98 - 102% (Assay)
    Synonym:
    Ac-L-Cys-OH
    Catalog Number:
    29880
    Grade:
    Meets USP specification (Manufactured as per GMP)
    CAS Number:
    616-91-1
    Purity Limit:
    98 - 102% (Assay)
    MDL NO:
    MFCD00004880
    Molecular Formula:
    C5H9NO3S
    Molecular Weight:
    163.2
    Specification Sheet SDS

  • L-Cysteine from non-animal source

    Purity:
    ≥ 98% (Assay)
    Catalog Number:
    24758
    CAS Number:
    52-90-4
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00064306
    Molecular Formula:
    C3H7NO2S
    Molecular Weight:
    121.16
    Specification Sheet SDS

  • S-Benzyl-D-cysteine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    D-Cys(Bzl)-OH
    Catalog Number:
    03048
    CAS Number:
    23032-53-3
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00077103
    Molecular Formula:
    C10H13NO2S
    Molecular Weight:
    211.3
    Specification Sheet SDS

  • Fmoc-S-tert-butyl-L-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(tBu)-OH
    Catalog Number:
    02401
    CAS Number:
    67436-13-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00037130
    Molecular Formula:
    C22H25NO4S
    Molecular Weight:
    399.5
    Specification Sheet SDS

  • L-Cysteine

    Purity:
    ≥ 99% (Assay)
    Synonym:
    L-Cys-OH
    Catalog Number:
    00437
    CAS Number:
    52-90-4
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00064306
    Molecular Formula:
    C3H7NO2S
    Molecular Weight:
    121.16
    Specification Sheet SDS

  • L-Cysteine hydrochloride monohydrate

    Grade:
    Meets USP specification
    Purity:
    98.5 - 101.5% (Assay on dried basis)
    Synonym:
    L-Cys-OH·HCl·H2O
    Catalog Number:
    00085
    Grade:
    Meets USP specification
    CAS Number:
    7048-04-6
    Purity Limit:
    98.5 - 101.5% (Assay on dried basis)
    MDL NO:
    MFCD00065606
    Molecular Formula:
    C3H7NO2S·HCl·H2O
    Molecular Weight:
    175.63
    Specification Sheet SDS

  • S-(Methyl-o-nitropiperonyl)-L-Cysteine

    Purity:
    ≥ 98%
    Synonym:
    H-Cys(methyl-o-nitropiperonyl)-OH
    Catalog Number:
    47699
    CAS Number:
    1551078-43-3
    Purity Limit:
    ≥ 98%
    Molecular Formula:
    C12H14N2O6S
    Molecular Weight:
    314.3
    SDS

  • Se-(Methyl-o-nitropiperonyl)-selenocysteine · TFA

    Purity:
    ≥ 98%
    Synonym:
    H-Sec(Methyl-o-nitropiperonyl)-OH · TFA
    Catalog Number:
    47698
    CAS Number:
    2235373-48-3, 2235373-47-2
    Purity Limit:
    ≥ 98%
    Molecular Formula:
    C14H15F3N2O8Se
    Molecular Weight:
    475.2
    SDS

  • Acetyl-L-cysteine, from Non-animal source

    Grade:
    Japanese Standards of Quasi-drug Ingredients
    Purity:
    ≥ 98% (Assay)
    Synonym:
    Ac-L-Cys-OH
    Catalog Number:
    46513
    Grade:
    Japanese Standards of Quasi-drug Ingredients
    CAS Number:
    616-91-1
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00004880
    Molecular Formula:
    C5H9NO3S
    Molecular Weight:
    163.2
    Specification Sheet SDS

  • Fmoc-L-Cys(Phacm)-OH

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Nα-(9-Fluorenylmethyloxycarbonyl)-S-Phenylacetylaminomethyl)-L-cysteine
    Catalog Number:
    33078
    CAS Number:
    159680-21-4
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD00797550
    Molecular Formula:
    C27H26N2O5S
    Molecular Weight:
    490.6
    Specification Sheet SDS

  • L-Cysteine hydrochloride monohydrate from non-animal source

    Purity:
    ≥ 99% (Titration: anhydrous basis)
    Synonym:
    L-Cys-OH·HCl·H2O
    Catalog Number:
    31108
    CAS Number:
    7048-04-6
    Purity Limit:
    ≥ 99% (Titration: anhydrous basis)
    MDL NO:
    MFCD00065606
    Molecular Formula:
    C3H7NO2S·HCl·H2O
    Molecular Weight:
    175.63
    Specification Sheet SDS

  • Fmoc-S-4-methyltrityl-D-cysteine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-D-Cys(Mtt)-OH
    Catalog Number:
    31113
    CAS Number:
    252206-29-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD14155676
    Molecular Formula:
    C38H33NO4S
    Molecular Weight:
    599.75
    Specification Sheet SDS

  • Nα-Fmoc-S-Palmitoyl-L-cysteine

    Purity:
    ≥ 99% (HPLC, TLC)
    Synonym:
    Fmoc-L-Cys(Palm)-OH
    Catalog Number:
    30533
    CAS Number:
    824955-27-3
    Purity Limit:
    ≥ 99% (HPLC, TLC)
    MDL NO:
    MFCD02094405
    Molecular Formula:
    C34H47NO5S
    Molecular Weight:
    581.8
    Specification Sheet SDS

  • S-Trityl-D-Cysteine tert-butyl ester hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    H-D-Cys(Trt)-OtBu·HCl
    Catalog Number:
    30464
    CAS Number:
    439089-10-8
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD22989445
    Molecular Formula:
    C26H29NO2S·HCl
    Molecular Weight:
    456.0
    Specification Sheet SDS

  • S-Trityl-L-Cysteine tert-butyl ester hydrochloride

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    H-L-Cys(Trt)-OtBu·HCl
    Catalog Number:
    30455
    CAS Number:
    158009-03-1
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD21363202
    Molecular Formula:
    C26H30ClNO2S
    Molecular Weight:
    456.0
    Specification Sheet SDS

  • D-Cysteine ethyl ester hydrochloride

    Purity:
    ≥ 98.5% (HPLC)
    Synonym:
    D-Cys-OEt·HCl
    Catalog Number:
    29770
    CAS Number:
    75521-14-1
    Purity Limit:
    ≥ 98.5% (HPLC)
    MDL NO:
    MFCD12674805
    Molecular Formula:
    C5H11NO2S·HCl
    Molecular Weight:
    185.7
    Specification Sheet SDS

  • R-Fmoc-2-amino-3-(3-(Boc-amino)-propylsulfanyl)-propionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(3-(Boc-amino)-propyl)-OH
    Catalog Number:
    29641
    CAS Number:
    173963-91-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01318742
    Molecular Formula:
    C26H32N2O6S
    Molecular Weight:
    500.61
    Specification Sheet SDS

  • R-Fmoc-2-amino-3-(2-tert-butoxycarbonyl-ethylsulfanyl)-propionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(tert-butoxycarbonylethyl)-OH
    Catalog Number:
    29637
    CAS Number:
    685863-48-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD18782825
    Molecular Formula:
    C25H29NO6S
    Molecular Weight:
    471.57
    Specification Sheet SDS

  • (R)-Fmoc-2-amino-3-propargylsulfanyl-propionic acid

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    Fmoc-L-Cys(propargyl)-OH
    Catalog Number:
    29638
    CAS Number:
    1354752-76-3
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD26793605
    Molecular Formula:
    C21H19NO4S
    Molecular Weight:
    381.45
    Specification Sheet SDS

  • R-Boc-2-amino-3-phenylsulfanyl-propionic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Boc-L-Cys(phenyl)-OH
    Catalog Number:
    29586
    CAS Number:
    163705-28-0
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD08063988
    Molecular Formula:
    C14H19NO4S
    Molecular Weight:
    297.37
    Specification Sheet SDS

  • (R-Boc-2-amino-3-propargylsulfanyl-propionic acid·DCHA

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Cys(propargyl)-OH·DCHA
    Catalog Number:
    29585
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD26793599
    Molecular Formula:
    C11H17NO4S·C12H23N
    Molecular Weight:
    440.64
    Specification Sheet SDS

  • R-Fmoc-2-amino-3-dodecylsulfanyl-propionic acid

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    Fmoc-L-Cys(dodecyl)-OH
    Catalog Number:
    29690
    CAS Number:
    1310682-09-7
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD09998733
    Molecular Formula:
    C30H41NO4S
    Molecular Weight:
    511.72
    Specification Sheet SDS

  • R-Fmoc-2-amino-3-phenylsulfanyl-propionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(phenyl)-OH
    Catalog Number:
    29639
    CAS Number:
    488761-06-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD08063325
    Molecular Formula:
    C24H21NO4S
    Molecular Weight:
    419.5
    Specification Sheet SDS

  • R-Fmoc-2-amino-3-(3-tert-butoxycarbonyl-propylsulfanyl)propionic acid

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(tert-butoxycarbonylpropyl)-OH
    Catalog Number:
    29323
    CAS Number:
    102971-73-3
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD11226818
    Molecular Formula:
    C26H31NO6S
    Molecular Weight:
    485.6
    Specification Sheet SDS

  • DL-Penicillamine

    Purity:
    ≥ 99% (HPLC)
    Synonym:
    DL-Pen-OH
    Catalog Number:
    21824
    CAS Number:
    52-66-4
    Purity Limit:
    ≥ 99% (HPLC)
    MDL NO:
    MFCD00004856
    Molecular Formula:
    C5H11NO2S
    Molecular Weight:
    149.21
    Specification Sheet SDS

  • D-Cysteine

    Purity:
    98 - 101% (Titration)
    Synonym:
    (S-2-Amino-3-mercaptopropionic acid
    Catalog Number:
    21754
    CAS Number:
    921-01-7
    Purity Limit:
    98 - 101% (Titration)
    MDL NO:
    MFCD00066461
    Molecular Formula:
    C3H7NO2S
    Molecular Weight:
    121.16
    Specification Sheet SDS

  • L-Cysteic acid monohydrate

    Purity:
    ≥ 99% (Assay)
    Synonym:
    (R)-2-Amino-3-sulfopropionic acid
    Catalog Number:
    21698
    CAS Number:
    23537-25-9
    Purity Limit:
    ≥ 99% (Assay)
    MDL NO:
    MFCD00149544
    Molecular Formula:
    C3H7NO5S·H2O
    Molecular Weight:
    187.17
    Specification Sheet SDS

  • DL-Cysteine

    Purity:
    ≥ 97% (Assay)
    Synonym:
    DL-2-Amino-3-mercaptopropionic acid
    Catalog Number:
    21654
    CAS Number:
    3374-22-9
    Purity Limit:
    ≥ 97% (Assay)
    MDL NO:
    MFCD00004881
    Molecular Formula:
    C3H7NO2S
    Molecular Weight:
    121.16
    Specification Sheet SDS

  • DL-Cystein hydrochloride hydrate

    Synonym:
    DL-Cys-OH·HCl·H2O
    Catalog Number:
    21624
    CAS Number:
    116797-51-4
    MDL NO:
    MFCD00151030
    Molecular Formula:
    C3H7NO2S·HCl·H2O
    Molecular Weight:
    175.64
    SDS

  • DL-Cysteine hydrochloride

    Synonym:
    DL-2-Amino-3-mercaptopropionic acid hydrochloride
    Catalog Number:
    21500
    CAS Number:
    10318-18-0
    MDL NO:
    MFCD00064552
    Molecular Formula:
    C3H7NO2S·HCl
    Molecular Weight:
    157.62
    SDS

  • S-2-Nitrophenyl-L-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    H-Cys(Sonp)-OH
    Catalog Number:
    21460
    CAS Number:
    60115-45-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD04972096
    Molecular Formula:
    C9H10N2O4S
    Molecular Weight:
    242.25
    Specification Sheet SDS

  • Fmoc-D-cysteine hydrate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Cys-OH·H2O
    Catalog Number:
    16183
    CAS Number:
    157355-80-1
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD18253022
    Molecular Formula:
    C18H17NO4S·H2O
    Molecular Weight:
    361.5
    Specification Sheet SDS

  • Boc-D-cysteine

    Purity:
    ≥ 99% (Assay by titration)
    Synonym:
    Boc-D-Cys-OH
    Catalog Number:
    16133
    CAS Number:
    149270-12-2
    Purity Limit:
    ≥ 99% (Assay by titration)
    MDL NO:
    MFCD05663721
    Molecular Formula:
    C8H15NO4S
    Molecular Weight:
    221.3
    Specification Sheet SDS

  • Fmoc-S-4-methoxytrityl-D-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-D-Cys(Mmt)-OH
    Catalog Number:
    14848
    CAS Number:
    1198791-73-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD02094091
    Molecular Formula:
    C38H33NO5S
    Molecular Weight:
    615.75
    Specification Sheet SDS

  • Fmoc-S-allyloxycarbonylamidomethyl-L-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(Allocam)-OH
    Catalog Number:
    14440
    CAS Number:
    232953-09-2
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00273447
    Molecular Formula:
    C23H24N2O6S
    Molecular Weight:
    456.51
    Specification Sheet SDS

  • Boc-S-allyloxy-amidomethyl-L-cysteine dicyclohexylamine salt

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Boc-L-Cys(Allocam)-OH·DCHA
    Catalog Number:
    14439
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD00273400
    Molecular Formula:
    C13H22N2O6S
    Molecular Weight:
    334.39
    Specification Sheet SDS

  • S-9-Fluorenylmethyl-L-cysteine tert-butyl ester hydrochloride

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    L-Cys(Fm)-OtBu·HCl
    Catalog Number:
    14331
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD08458522
    Molecular Formula:
    C21H25NO2S·HCl
    Molecular Weight:
    391.9
    Specification Sheet SDS

  • Fmoc-L-cysteine hydrate

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys-OH·H2O
    Catalog Number:
    14009
    CAS Number:
    135248-89-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD13184915
    Molecular Formula:
    C18H17NO4S·H2O
    Molecular Weight:
    361.4
    Specification Sheet SDS

  • L-Cysteine methyl ester hydrochloride

    Purity:
    ≥ 98% (Assay)
    Synonym:
    L-Cys-OMe·HCl
    Catalog Number:
    12007
    CAS Number:
    18598-63-5
    Purity Limit:
    ≥ 98% (Assay)
    MDL NO:
    MFCD00038985
    Molecular Formula:
    C4H9NO2S·HCl
    Molecular Weight:
    171.68
    Specification Sheet SDS

  • Fmoc-L-cysteine amide

    Purity:
    ≥ 99.5% (Chiral HPLC)
    Synonym:
    Fmoc-L-Cys-NH2
    Catalog Number:
    12605
    CAS Number:
    623177-62-8
    Purity Limit:
    ≥ 99.5% (Chiral HPLC)
    MDL NO:
    MFCD03788160
    Molecular Formula:
    C18H18N2O3S
    Molecular Weight:
    342.4
    Specification Sheet SDS

  • S-4-Methoxyltrityl-L-cysteine

    Purity:
    ≥ 97% (HPLC)
    Synonym:
    L-Cys(Mmt)-OH
    Catalog Number:
    12006
    CAS Number:
    177582-20-6
    Purity Limit:
    ≥ 97% (HPLC)
    MDL NO:
    MFCD05663448
    Molecular Formula:
    C23H23NO3S
    Molecular Weight:
    393.28
    Specification Sheet SDS

  • Fmoc-S-xanthyl-L-cysteine

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(Xan)-OH
    Catalog Number:
    11958
    CAS Number:
    186829-25-4
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01862337
    Molecular Formula:
    C31H25NO5S
    Molecular Weight:
    523.58
    Specification Sheet SDS

  • Fmoc-S-acetamidomethyl-L-cysteine N-hydroxysuccinimide ester

    Purity:
    ≥ 98% (HPLC)
    Synonym:
    Fmoc-L-Cys(Acm)-OSu
    Catalog Number:
    11956
    CAS Number:
    182410-75-9
    Purity Limit:
    ≥ 98% (HPLC)
    MDL NO:
    MFCD01076143
    Molecular Formula:
    C25H25N3O7S
    Molecular Weight:
    511.54
    Specification Sheet SDS
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