Substance
ID:351808
Names and Identifiers
IUPAC name
(2R)-2-amino-3-sulfanylpropanoic acid
IUPAC Traditional name
L-cysteine
Synonyms
L-半胱氨酸(R)-2-Amino-3-mercaptopropionic acid(R)-2-氨基-3-巯基丙酸L-Cysteine
Registration numbers
CAS Number
Beilstein Number
EC Number
MDL Number
PubChem SID
Properties
Product Information
Cation Traces
Ca: ≤10 mg/kg
Co: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
NH4+: ≤500 mg/kg
Bi: ≤5 mg/kg
Cu: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Cd: ≤5 mg/kg
K: ≤50 mg/kg
Mo: ≤5 mg/kg
Li: ≤5 mg/kg
Sr: ≤5 mg/kg
Pb: ≤5 mg/kg
Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Cr: ≤5 mg/kg
Zn: ≤5 mg/kg
Antion Traces
sulfate (SO42-): ≤50 mg/kg
chloride (Cl-): ≤100 mg/kg
Ignition Residue
≤0.05% (as SO4)
Loss on Drying
≤0.05% loss on drying, 20 °C (HV)
Impurities
≤0.5% foreign amino acids
insoluble matter, passes filter test
Linear Formula
HSCH2CH(NH2)CO2H
Purity
≥98.5% (RT)
Product Line
BioUltra
λ
1 M in 1 M HCl
Physical Property
Optical Rotation
[α]20/D +8.0±0.5°, c = 5% in 5 M HCl
Solubility
1 M HCl: soluble1 M at 20 °C, clear, colorless
Absorption Wavelength
λ: 260 nm Amax: 1.5
λ: 280 nm Amax: 0.2
Melting Point
220 °C (dec.)(lit.)
Safety Information
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
GHS Signal Word
Warning
MSDS Link
European Hazard Symbols
Harmful (Xn)GHS Hazard statements
H302
Risk Statements
22
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
RTECS
HA1600000
German water hazard class
1
Molecule Details
Biochem/physiol Actions
NMDA glutamatergic receptor agonist.
NMDA glutamatergic receptor agonist.
Molecular Spectra
No Data Available
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References
No Data Available
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