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30199 Sigma

L-Cystine

BioUltra, ≥99.5% (T)

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

  • CAS Number 56-89-3

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

  • Molecular Weight 240.30

  •  Beilstein Registry Number 1728094

  •  EC Number 200-296-3

  •  MDL number MFCD00064228

  •  PubChem Substance ID 24858224

  •  eCl@ss 32160406

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Properties

Related Categories Amino Acids, Amino acids, BioUltra, Biochemicals and Reagents, Cell Biology,
InChI Key   LEVWYRKDKASIDU-IMJSIDKUSA-N
product line   BioUltra
assay   ≥99.5% (T)
optical activity   [α]20/D −219±5°, c = 1% in 1 M HCl
impurities   insoluble matter, passes filter test
  ≤0.3% foreign amino acids
ign. residue   ≤0.05% (as SO4)
loss   ≤0.05% loss on drying, 20 °C (HV)
mp   >240 °C (dec.)(lit.)
solubility   1 M HCl: soluble0.2 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤500 mg/kg
  sulfate (SO42-): ≤100 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤10 mg/kg
  K: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
absorption   absorption0.2M/316 nm, 1 M HCl cut-off

Description

Other Notes

Certain malignant cell lines require cystine or cysteine in the culture medium; Growth requirement of various microorganisms

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.




All labs need water
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1

Documents

Certificate of Analysis

Protocols & Articles

Related Content

Amino Acids Reference Chart

The hydrophobicity index is a measure of the relative hydrophobicity, or how soluble an amino acid is in water. In a protein, hydrophobic amino acids are likely to be found in the interior, whereas h...

Peer-Reviewed Papers
15

References

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