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Cystine

CAT: 0013-GTR19158781-02Size: 1 gDry Ice: NoHazardous: No
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Description
Not considered one of the 20 amino acids, Cystine is a sulfur-containing derivative obtained from oxidation of cysteine amino acid thiol side chains. It functions as an antioxidant and protects tissues against radiation and pollution, slowing the aging process. It also aids protein synthesis. Cystine is abundant in many proteins of skeletal tissues and skin, and found in insulin and digestive enzymes chromotrypsinogen A, papain, and trypsinogen.
CAS Number
56-89-3
Product Name Alternative
Cystine | NSC 13203 | NSC-13203
Field of Research
Pharmacology & Drug Discovery
Purity
>98% (HPLC)
Solubility
In Vitro: 0.1 M NaOH : 3.33 mg/mL (13.8)
Smiles
C (C (C (=O) O) N) SSCC (C (=O) O) N
Molecular Formula
C6H12N2O4S2
Molecular Weight
240.29
Storage Conditions
Storage temperature: -20°C. Stability: ≥ 2 years
Notes
For research use only.
Other Product Names
Cystine

Chemical Information

(-)-Cystine

L-cystine is the L-enantiomer of the sulfur-containing amino acid cystine. It has a role as an EC 1.2.1.11 (aspartate-semialdehyde dehydrogenase) inhibitor, a flour treatment agent, a mouse metabolite, a Saccharomyces cerevisiae metabolite and a human metabolite. It is a cystine, a non-proteinogenic L-alpha-amino acid and a L-cysteine derivative. It is a conjugate acid of a L-cystine anion. It is an enantiomer of a D-cystine. It is a tautomer of a L-cystine zwitterion.

CAS Number56-89-3
PubChem CID67678
IUPAC Name(2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid
Molecular FormulaC6H12N2O4S2
Molecular Weight240.3
XLogP-6.3
Topological Polar Surface Area177
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count8
Rotatable Bond Count7
Heavy Atom Count14
Formal Charge0
Complexity192
SMILES
C([C@@H](C(=O)O)N)SSC[C@@H](C(=O)O)N
InChI
InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1
InChIKey
LEVWYRKDKASIDU-IMJSIDKUSA-N
Chemical Structure
2D Structure
2D structure of (-)-Cystine
CAS: 56-89-3
CID: 67678
Formula: C6H12N2O4S2
MW: 240.3
Interactive 3D Structure
Loading 3D structure...
View on PubChemRaw 3D data
Computed Properties
PropertyValue
Molecular Weight240.3
XLogP3-6.3
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count8
Rotatable Bond Count7
Exact Mass240.02384922
Monoisotopic Mass240.02384922
Topological Polar Surface Area177 Ų
Heavy Atom Count14
Formal Charge0
Complexity192
Isotope Atom Count0
Defined Atom Stereocenter Count2
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently-Bonded Unit Count1
Compound Is CanonicalizedYes

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