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49603 Supelco

L-Cystine

certified reference material, TraceCERT®

Synonym: (R,R)-3,3′-Dithiobis(2-aminopropionicacid)

  • CAS Number 56-89-3

  • Linear Formula [-SCH2CH(NH2)CO2H]2

  • Molecular Weight 240.30

  •  Beilstein/REAXYS Number 1728094

  •  EC Number 200-296-3

  •  MDL number MFCD00064228

  •  eCl@ss 32160406

  •  PubChem Substance ID 329757485

  •  E Number E921

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Properties

Related Categories A-F, A-L, Additional Standards, All Alphabetically Sorted, Amino Acid Standards,
grade   certified reference material
InChI Key   LEVWYRKDKASIDU-IMJSIDKUSA-N
grade   TraceCERT®
form   neat
storage condition   under inert gas
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
mp   >240 °C (dec.) (lit.)
Featured Industry   Cosmetics, Personal Care, and Cleaning Products
Food and Beverages
analyte suitability   amino acids
  peptides
  proteins
format   neat

Description

General description

L-Cystine belongs to the amino acid group and is found to be optically active due the presence of chiral centers and a wide range of hydrogen bonding network, which tends to enhance its optical properties. It can serve as an important source of L-cysteine and other sulfur containing amino acids, thus acting like a substitute for L-methionine.

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034 (ISO Guide 34). This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ.
Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Legal Information

TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1

Documents

Certificate of Analysis

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Protocols & Articles

Articles

GC Analysis of Amino Acids (as TBDMS Derivatives) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm), Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents GC Analysis of Amino Acids (as TBDMS Derivatives) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm), Fast GC Analysis
Keywords: Chromatography, Gas chromatography, Purification

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Peer-Reviewed Papers
15

References

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