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
• Alanine, 3,3'-dithiobis-
• Bis(β-amino-β-carboxyethyl) disulfide
• Cistina
• Cystin
• Cystine
• Cystine acid
• Cystine, <span class="text-smallcaps">L</span>-
• Cystine, L-
• Dicysteine
• H-(Cys)_2-OH
• L(-)-3,3-Dithiobis(2-aminopropanoic acid)
• L-(-)-Cysteine
• L-Alanine, 3,3'-dithiobis-
• L-Cysteine disulfide
• L-Cystin
• L-Cystine, synthetically derived
• L-Cystine,food grade
• Nsc 13203
• Oxidized <span class="text-smallcaps">L</span>-cysteine
• Oxidized L-cysteine
• Propanoic acid, 3,3'-dithiobis[2-amino-, [R-(R*,R*)]-
• [R-(R*,R*)]-3,3'-Dithiobis[2-aminopropanoic acid]
• β,β'-Diamino-β,β'-dicarboxydiethyl disulfide
• β,β'-Dithiodialanine
• L-Cystine
• (R,R)-3,3'-DITHIOBIS(2-AMINOPROPIONIC ACID)
• (R)-(-)-CYSTINE
• L-CYTISINE
• (r-(r*,r*))-3,3’-dithiobis(2-aminopropanoicacid)
• L-CYSTINE BASE
• 3,3’-dithiobis(2-aminopropanoicacid)
• H-L-CYSTINE
• 3,3’-dithiobis-l-alanin
• BETA,BETA'-DITHIOBIS-A-AMINOPROPIONIC ACID
• (R,R)-(-)-CYSTINE
• 3,3’-dithiobis(2-amino-,(r-(r*,r*))-propanoicaci
• 1-cystine

Acetylcysteine EP Impurity A

CAS: 56-89-3

Formula: C₆H₁₂N₂O₄S₂

Molecular weight: 240.29

Ref: ST-EA-CP-A79001

L-Cystine

CAS: 56-89-3

Impurity Acetylcysteine EP Impurity A
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
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),

Formula: C₆H₁₂N₂O₄S₂

Color and Shape: Neat

Molecular weight: 240.3

Ref: TR-C997860

L-Cystine

CAS: 56-89-3

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

L-Cystine in Water

CAS: 56-89-3

Water

Ref: BE-BePure-21576YW-1000

L-Cystine

CAS: 56-89-3

Ref: BE-BePure-21576

(H-Cys-OH)2

CAS: 56-89-3

M06021 - (H-Cys-OH)2

Formula: C₆H₁₂N₂O₄S₂

Purity: 97%

Color and Shape: Solid, Crystalline Powder or Powder

Molecular weight: 240.29

Ref: 10-M06021

L-Cystine for tissue culture, 99%

CAS: 56-89-3

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

L-Cystine extrapure CHR, 99%

CAS: 56-89-3

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

L-Cystine ExiPlus, Multi-Compendial, 99%

CAS: 56-89-3

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