Substance
ID:351685
Names and Identifiers
IUPAC name
(2R)-2-amino-3-{[(2R)-2-amino-2-carboxyethyl]disulfanyl}propanoic acid
IUPAC Traditional name
L-cystine
Synonyms
L-胱氨酸L-Cystine(R,R)-3,3′-二硫双(2-氨基丙酸)(R,R)-3,3′-Dithiobis(2-aminopropionicacid)
Registration numbers
CAS Number
MDL Number
EC Number
Beilstein Number
PubChem SID
Properties
Product Information
Cation Traces
Fe: ≤10 mg/kg
K: ≤50 mg/kg
Na: ≤50 mg/kg
Cd: ≤5 mg/kg
Bi: ≤5 mg/kg
Ni: ≤5 mg/kg
Zn: ≤5 mg/kg
Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ca: ≤10 mg/kg
Li: ≤5 mg/kg
Pb: ≤5 mg/kg
Cu: ≤5 mg/kg
Mn: ≤5 mg/kg
Cr: ≤5 mg/kg
Mg: ≤5 mg/kg
Ba: ≤5 mg/kg
Co: ≤5 mg/kg
Mo: ≤5 mg/kg
Sr: ≤5 mg/kg
Impurities
insoluble matter, passes filter test
≤0.3% foreign amino acids
Linear Formula
[-SCH2CH(NH2)CO2H]2
Antion Traces
chloride (Cl-): ≤500 mg/kg
sulfate (SO42-): ≤100 mg/kg
Loss on Drying
≤0.05% loss on drying, 20 °C (HV)
Product Line
BioUltra
Ignition Residue
≤0.05% (as SO4)
abs.
absorption0.2M/316 nm, 1 M HCl cut-off
Purity
≥99.5% (T)
Safety Information
MSDS Link
Personal Protective Equipment
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
German water hazard class
3
Physical Property
Melting Point
>240 °C (dec.)(lit.)
Optical Rotation
[α]20/D -219±5°, c = 1% in 1 M HCl
Solubility
1 M HCl: soluble0.2 M at 20 °C, clear, colorless
Molecule Details
Other Notes
Certain malignant cell lines require cystine or cysteine in the culture medium1; Growth requirement of various microorganisms2
Certain malignant cell lines require cystine or cysteine in the culture medium1; Growth requirement of various microorganisms2
Molecular Spectra
No Data Available
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References
No Data Available
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