L-Cysteine

• Catalog No.: 30090
• CAS Number: 52-90-4
• M. F.: C3H7NO2S
• M. W.: 121.15818
• Purity: ≥98.5% (RT)

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
• CAS Number: 52-90-4

PROPERTIES

• 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: Mg: ≤5 mg/kg
• Cation Traces: Mn: ≤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: Zn: ≤5 mg/kg
• Ignition Residue: ≤0.1% (as SO4)
• Impurities: ≤0.5% foreign amino acids
• Linear Formula: HSCH2CH(NH2)CO2H
• Loss on Drying: ≤0.1% loss on drying, 110 °C
• Purity: ≥98.5% (RT)
• Antion Traces: chloride (Cl-): ≤100 mg/kg
• Antion Traces: sulfate (SO42-): ≤100 mg/kg
• Melting Point: 220 °C (dec.)(lit.)
• Optical Rotation: [α]20/D +7.6±0.5°, c = 5% in 5 M HCl
• GHS Signal Word: Warning
• GHS Hazard statements: H302
• European Hazard Symbols: Harmful (Xn)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• Risk Statements: 22
• RTECS: HA1600000
• German water hazard class: 1

DETAILS

Description (简体中文)

Biochem/physiol Actions
NMDA 谷氨酸受体激动剂。

Description (English)

Biochem/physiol Actions
NMDA glutamatergic receptor agonist.