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L-Cysteine

Catalog No. 30089 Name Sigma Aldrich
CAS Number 52-90-4 Website http://www.sigmaaldrich.com
M. F. C3H7NO2S Telephone 1-800-521-8956
M. W. 121.15818 Fax
Purity ≥98.5% (RT) Email
Storage Chembase ID: 37

SYNONYMS

Title
L-半胱氨酸
IUPAC name
(2R)-2-amino-3-sulfanylpropanoic acid
IUPAC Traditional name
L-cysteine
Synonyms
(R)-2-Amino-3-mercaptopropionic acid
(R)-2-氨基-3-巯基丙酸

DATABASE IDS

MDL Number MFCD00064306
EC Number 200-158-2
Beilstein Number 1721408
PubChem SID 24858110
CAS Number 52-90-4

PROPERTIES

Antion Traces chloride (Cl-): ≤100 mg/kg
Antion Traces sulfate (SO42-): ≤50 mg/kg
Cation Traces Al: ≤5 mg/kg
Cation Traces As: ≤0.1 mg/kg
Cation Traces Ba: ≤5 mg/kg
Cation Traces Bi: ≤5 mg/kg
Cation Traces Ca: ≤10 mg/kg
Cation Traces Cd: ≤5 mg/kg
Cation Traces Co: ≤5 mg/kg
Cation Traces Cr: ≤5 mg/kg
Cation Traces Cu: ≤5 mg/kg
Cation Traces Fe: ≤5 mg/kg
Cation Traces K: ≤50 mg/kg
Cation Traces Li: ≤5 mg/kg
Cation Traces Mg: ≤5 mg/kg
Cation Traces Mn: ≤5 mg/kg
Cation Traces Mo: ≤5 mg/kg
Cation Traces NH4+: ≤500 mg/kg
Cation Traces Na: ≤100 mg/kg
Cation Traces Ni: ≤5 mg/kg
Cation Traces Pb: ≤5 mg/kg
Cation Traces Sr: ≤5 mg/kg
Cation Traces Zn: ≤5 mg/kg
Ignition Residue ≤0.05% (as SO4)
Impurities insoluble matter, passes filter test
Impurities ≤0.5% foreign amino acids
λ 1 M in 1 M HCl
Linear Formula HSCH2CH(NH2)CO2H
Loss on Drying ≤0.05% loss on drying, 20 °C (HV)
Product Line BioUltra
Purity ≥98.5% (RT)
Absorption Wavelength λ: 260 nm Amax: 1.5
Absorption Wavelength λ: 280 nm Amax: 0.2
Melting Point 220 °C (dec.)(lit.)
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
GHS Pictograms GHS07
GHS Signal Word Warning
GHS Hazard statements H302
European Hazard Symbols Harmful Harmful (Xn)
MSDS Link Download
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
Risk Statements 22
RTECS HA1600000
German water hazard class 1

DETAILS

Description (English)
Biochem/physiol Actions
NMDA glutamatergic receptor agonist.
Description (简体中文)
Biochem/physiol Actions
NMDA 谷氨酸受体激动剂。

REFERENCES