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CAS 56-89-3

:

(-)-Cystine

Description:
(-)-Cystine, with the CAS number 56-89-3, is a naturally occurring amino acid that plays a crucial role in protein structure and function. It is a dimeric form of cysteine, formed by the oxidation of two cysteine molecules, resulting in a disulfide bond between their thiol groups. This compound is characterized by its white crystalline appearance and is soluble in water, which facilitates its biological functions. (-)-Cystine is essential for the stability of protein structures, particularly in the formation of tertiary and quaternary structures due to its ability to form disulfide bridges. It is also involved in various metabolic processes and is important for the synthesis of glutathione, a key antioxidant in the body. In terms of its biological significance, (-)-Cystine is found in many proteins and is vital for maintaining the redox balance within cells. Its presence is particularly noted in keratin, which is a major component of hair, skin, and nails. Overall, (-)-Cystine is integral to numerous physiological processes and contributes to the structural integrity of proteins.
Formula:C6H12N2O4S2
InChI:InChI=1/C3H6NO2S3/c5-3(6)2(4-7)1-9-8/h2H,1,4H2,(H,5,6)
InChI key:InChIKey=LEVWYRKDKASIDU-IMJSIDKUSA-N
SMILES:[C@H](CSSC[C@@H](C(O)=O)N)(C(O)=O)N
Synonyms:
  • (-)-3,3-Dithiobis(2-aminopropionic acid)
  • (2R,2'S)-3,3'-disulfanediylbis(2-ammoniopropanoate)
  • (H-Cys-OH)2
  • (H-Cys-OH)2 (Disulfide bond)
  • 2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid
  • 3,3'-Dithiobis(2-aminopropanoic acid)
  • <span class="text-smallcaps">L</span>-(-)-Cystine
  • <span class="text-smallcaps">L</span>-Alanine, 3,3′-dithiobis-
  • <span class="text-smallcaps">L</span>-Cysteine disulfide
  • <span class="text-smallcaps">L</span>-Cystin
  • See more synonyms
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products per page.Found 29 products.
  • L-(-)-Cystine

    CAS:
    Formula:C6H12N2O4S2
    Purity:>98.0%(HPLC)(N)
    Color and Shape:White powder to crystaline
    Molecular weight:240.29

    Ref: 3B-C0519

    25g
    23.00€
    500g
    175.00€
  • L-Cystine, 99%

    CAS:
    L-Cystine is used as an antioxidant, protecting tissues against radiation and pollution. It finds application in protein synthesis. It is required for utilization of vitamin B6 and is useful in healing burns and wounds. It is also is required by certain malignant cell lines in the culture medium as
    Formula:C6H12N2O4S2
    Purity:99%
    Color and Shape:White to pale cream, Crystals or powder or crystalline powder
    Molecular weight:240.29

    Ref: 02-A13762

    1kg
    To inquire
    50g
    43.00€
    250g
    128.00€
  • L-Cystine, Cell Culture Reagent

    CAS:
    L-cysteine acts as a major source of sulfur in cell culture. Cysteine has been used in pulse-chase experiments to study protein expression from an inducible promoter. L-Cysteine is used to supplement cell culture media. This Thermo Scientific Chemicals brand product was originally part of the Alfa A
    Formula:C6H12N2O4S2
    Color and Shape:White, Crystals or crystalline powder
    Molecular weight:240.29

    Ref: 02-J61651

    1kg
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    10g
    28.00€
    100g
    86.00€
  • CYSTINE CRS

    CAS:
    CYSTINE CRS
    Formula:C6H12N2O4S2
    Molecular weight:240.3005

    Ref: 41-C3300000

    100mg
    132.00€
  • Cystine

    CAS:
    Other organo-sulfur acid compounds
    Formula:C6H12N2O4S2
    Color and Shape:White Crystalline Powder
    Molecular weight:240.02385
  • L-Cystine

    CAS:
    Formula:C6H12N2O4S2
    Purity:97%
    Color and Shape:Solid
    Molecular weight:240.3005

    Ref: IN-DA003R8S

    25Kg
    To inquire
    25g
    23.00€
    100g
    27.00€
    250g
    46.00€
    500g
    62.00€
    1kg
    81.00€
    10kg
    160.00€
    25kg
    278.00€
    50kg
    701.00€
  • L-Cystine

    CAS:
    L-Cystine
    Formula:C6H12N2O4S2
    Purity:≥98%
    Molecular weight:240.3

    Ref: 54-BUP18405

    500mg
    66.00€
    1g
    76.00€
  • L-Cystine

    CAS:
    L-Cystine
    Formula:C6H12N2O4S2
    Purity:99% (Typical Value in Batch COA)
    Color and Shape:White Solid-Powder
    Molecular weight:240.30048

    Ref: 54-BIC0670

    100g
    57.00€
    1kg
    189.00€
  • Cystine-d4

    CAS:
    Formula:C6H8D4N2O4S2
    Molecular weight:244.33

    Ref: 4Z-C-411

    5mg
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    10mg
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    25mg
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    50mg
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    100mg
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  • Acetylcysteine EP Impurity A (L-Cystine)

    CAS:
    Formula:C6H12N2O4S2
    Molecular weight:240.29

    Ref: 4Z-A-336005

    5mg
    To inquire
    10mg
    To inquire
    25mg
    627.00€
    50mg
    814.00€
    100mg
    1,138.00€
  • L-Cystine, non-animal origin

    CAS:
    Formula:C6H12N2O4S2
    Purity:≤ 0.2%
    Color and Shape:White or almost white crystalline powder
    Molecular weight:240.30

    Ref: 7W-GM2911

    100g
    66.00€
    250g
    123.00€
    500g
    213.00€
    1kg
    372.00€
  • L-Cystine

    CAS:
    Formula:C6H12N2O4S2
    Purity:98.5 - 101.0 %
    Color and Shape:White crystalline powder
    Molecular weight:240.30

    Ref: 7W-GM4173

    100g
    40.00€
    250g
    66.00€
    500g
    114.00€
    1kg
    194.00€
  • L-Cystine, non-animal origin, Ph. Eur. grade

    CAS:
    Formula:C6H12N2O4S2
    Color and Shape:White or almost white crystalline powder
    Molecular weight:240.30

    Ref: 7W-GM3190

    ne
    To inquire
  • L-Cystine

    CAS:
    Color and Shape:Neat

    Ref: 61-FOR0024.03

    10mg
    To inquire
  • L-Cystine

    Controlled Product
    CAS:
    Formula:C6H12N2O4S2
    Color and Shape:Neat
    Molecular weight:240.30

    Ref: 04-C11925100

    250mg
    To inquire
  • L-Cystine

    Controlled Product
    CAS:
    Formula:C6H12N2O4S2
    Color and Shape:Neat
    Molecular weight:240.30

    Ref: 86-MM0024.03

    100mg
    To inquire
  • L-Cystine

    CAS:
    Formula:C6H12N2O4S2
    Purity:95%~99%
    Molecular weight:240.292

    Ref: BP-BP3535

    ne
    To inquire
  • DL-Cystine-d6 Dimethyl Ester

    CAS:
    Formula:C8H10D6N2O4S2
    Molecular weight:274.38

    Ref: 4Z-C-4116

    5mg
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    10mg
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    25mg
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    50mg
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    100mg
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  • L-Cystine

    CAS:
    L-Cystine (Cystine Acid) is not considered one of the 20 amino acids, L-Cystine (Cystine Acid) is a sulfur-containing derivative obtained from oxidation of
    Formula:C6H12N2O4S2
    Purity:99.59% - 99.95%
    Color and Shape:White Solid
    Molecular weight:240.3

    Ref: TM-T2O2733

    500mg
    46.00€
    1g
    50.00€
    1mL*10mM (DMSO)
    50.00€
  • L-Cystine

    CAS:
    (2R,2'R)-3,3'-Disulfanediylbis(2-aminopropanoic acid)
    Formula:C6H12N2O4S2
    Purity:98%
    Molecular weight:240.3