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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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Found 27 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
    25.00€
    500g
    194.00€
  • L-Cystine, 99%

    CAS:
    <p>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 </p>
    Formula:C6H12N2O4S2
    Purity:99%
    Color and Shape:Crystals or powder or crystalline powder, White to pale cream
    Molecular weight:240.29

    Ref: 02-A13762

    1kg
    To inquire
    50g
    42.00€
    250g
    126.00€
  • L-Cystine, Cell Culture Reagent

    CAS:
    <p>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</p>
    Formula:C6H12N2O4S2
    Color and Shape:White, Crystals or crystalline powder
    Molecular weight:240.29

    Ref: 02-J61651

    10g
    28.00€
    1kg
    To inquire
    100g
    84.00€
  • L-Cystine

    CAS:
    Color and Shape:Neat

    Ref: 61-FOR0024.03

    10mg
    306.00€
  • CYSTINE CRS

    CAS:
    CYSTINE CRS
    Formula:C6H12N2O4S2
    Molecular weight:240.3005

    Ref: 41-C3300000

    100mg
    115.00€
  • 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

    25g
    20.00€
    100g
    30.00€
    250g
    50.00€
    25Kg
    627.00€
    500g
    60.00€
    1000g
    77.00€
  • L-Cystine

    CAS:
    L-Cystine
    Purity:≥98%
    Molecular weight:240.3g/mol

    Ref: 54-BUP18405

    1g
    76.00€
    100g
    632.00€
    500mg
    66.00€
  • 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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  • 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
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  • L-Cystine

    CAS:
    <p>L-Cystine</p>
    Formula:C6H12N2O4S2
    Purity:99% (Typical Value in Batch COA)
    Color and Shape: white powder
    Molecular weight:240.30g/mol

    Ref: 54-BIC0670

    1kg
    189.00€
    100g
    57.00€
  • 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

    1kg
    354.00€
    100g
    63.00€
    250g
    117.00€
    500g
    202.00€
  • L-Cystine

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

    Ref: 7W-GM4173

    1kg
    185.00€
    100g
    38.00€
    250g
    63.00€
    500g
    109.00€
  • Acetylcysteine EP Impurity A (L-Cystine)

    CAS:
    Formula:C6H12N2O4S2
    Molecular weight:240.29

    Ref: 4Z-A-336005

    5mg
    To inquire
    10mg
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    25mg
    To inquire
    50mg
    803.00€
    100mg
    1,123.00€
  • L-Cystine

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

    Ref: BP-BP3535

    ne
    To inquire
  • L-Cystine

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

    Ref: 86-MM0024.03

    100mg
    483.00€
  • L-Cystine

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

    Ref: 04-C11925100

    250mg
    96.00€
  • L-Cystine

    CAS:
    <p>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</p>
    Formula:C6H12N2O4S2
    Purity:99.59% - 99.85%
    Color and Shape:White Solid Powder
    Molecular weight:240.30
  • 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:
    <p>Impurity Acetylcysteine EP Impurity A<br>Applications L-Cystine is a non-essential amino acid for human development. L-Cystine is formed by the dimerization of two cysteines through the sulfur. Acetylcysteine EP Impurity A<br>References Fahey, R.C., et al.: J. Mol. Evol., 10, 155 (1977), Kao, P., et al.: J. Biol.Chem., 261, 8085 ( 1986), Nicke, A., et al.: J. Biol. Chem., 278, 3137 (2003),<br></p>
    Formula:C6H12N2O4S2
    Color and Shape:White
    Molecular weight:240.30

    Ref: TR-C997860

    10g
    102.00€
    25g
    155.00€
    10mg
    81.00€
  • Acetylcysteine EP Impurity A

    CAS:
    Formula:C6H12N2O4S2
    Molecular weight:240.29

    Ref: ST-EA-CP-A79001

    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 is a nonessential amino acid in humans. It is a sulfur-containing amino acid, which forms the cystine molecule with another L-cysteine molecule. Cystine has been shown to have antioxidant properties due to its redox potentials and ability to form disulfide bonds. L-Cystine can be synthesized by the enzyme ATP-binding cassette transporter using the redox potential of NADH. It also plays an important role in protein synthesis, as it is a component of many proteins, including those that are involved in neural death and bowel disease. L-Cystine has also been found to have physiological effects on the human body at levels that are not toxic.
    Formula:C6H12N2O4S2
    Purity:Min 98.5%
    Color and Shape:White Powder
    Molecular weight:240.3 g/mol

    Ref: 3D-FC29798

    2kg
    325.00€
    5kg
    653.00€
    10kg
    1,137.00€
    25kg
    2,473.00€
  • (H-Cys-OH)2

    CAS:
    <p>M06021 - (H-Cys-OH)2</p>
    Formula:C6H12N2O4S2
    Purity:97%
    Color and Shape:Solid, Crystalline Powder or Powder
    Molecular weight:240.29

    Ref: 10-M06021

    1g
    12.00€
    1kg
    82.00€
    25g
    12.00€
    100g
    16.00€
    250g
    34.00€
    500g
    53.00€
  • L-Cystine for tissue culture, 99%

    CAS:
    Formula:C6H12N2O4S2
    Purity:min. 99%
    Color and Shape:White to off white, Crystalline compound, Clear, Colourless to pale yellow
    Molecular weight:240.30

    Ref: SR-83172

    25g
    29.00€
    100g
    24.00€
    500g
    57.00€
  • L-Cystine extrapure CHR, 99%

    CAS:
    Formula:C6H12N2O4S2
    Purity:min. 99%
    Color and Shape:White to off white, Crystalline compound, Clear, Colourless to pale yellow
    Molecular weight:240.30

    Ref: SR-35751

    1kg
    91.00€
    25g
    25.00€
    5kg
    421.00€
    100g
    23.00€
  • L-Cystine ExiPlus, Multi-Compendial, 99%

    CAS:
    Formula:C6H12N2O4S2
    Purity:min. 99%
    Color and Shape:White to off white, Crystalline compound, Clear, Colourless to pale yellow
    Molecular weight:240.30

    Ref: SR-38779

    1kg
    109.00€
    5kg
    505.00€
    250g
    35.00€
  • Acetylcysteine EP Impurity A (L-Cystine)

    CAS:
    Formula:C6H12N2O4S2
    Color and Shape:White To Off-White Solid
    Molecular weight:240.29

    Ref: 4Z-C-7713

    5mg
    Discontinued
    10mg
    Discontinued
    25mg
    Discontinued
    50mg
    Discontinued
    100mg
    Discontinued
    Discontinued product