Substance
ID:352893
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
Properties
Product Information
Cation Traces
Ca: ≤10 mg/kg
Co: ≤5 mg/kg
Na: ≤100 mg/kg
Pb: ≤5 mg/kg
Cu: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
NH4+: ≤500 mg/kg
Fe: ≤5 mg/kg
Cd: ≤5 mg/kg
Ni: ≤5 mg/kg
Cr: ≤5 mg/kg
Mn: ≤5 mg/kg
Zn: ≤5 mg/kg
Ignition Residue
≤0.1% (as SO4)
Loss on Drying
≤0.1% loss on drying, 110 °C
Impurities
≤0.5% foreign amino acids
Antion Traces
chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg
Purity
≥98.5% (RT)
Linear Formula
HSCH2CH(NH2)CO2H
Safety Information
GHS Signal Word
Warning
RTECS
HA1600000
GHS Hazard statements
H302
German water hazard class
1
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
MSDS Link
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
European Hazard Symbols
Harmful (Xn)Physical Property
Melting Point
220 °C (dec.)(lit.)
Optical Rotation
[α]20/D +7.6±0.5°, c = 5% in 5 M HCl
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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