L-Threonine

• Catalog No.: 89180
• CAS Number: 72-19-5
• M. F.: C4H9NO3
• M. W.: 119.11916
• Purity: ≥99.0% (NT)

SYNONYMS

• Title: L-苏氨酸
• IUPAC name: (2S,3R)-2-amino-3-hydroxybutanoic acid
• IUPAC Traditional name: L-threonine
• Synonyms: (2S,3R)-2-Amino-3-hydroxybutyric acid; (2S,3R)-2-氨基-3-羟基丁酸

DATABASE IDS

• EC Number: 200-774-1
• MDL Number: MFCD00064270
• CAS Number: 72-19-5
• Beilstein Number: 1721646

PROPERTIES

• Antion Traces: chloride (Cl-): ≤50 mg/kg
• Antion Traces: sulfate (SO42-): ≤50 mg/kg
• Cation Traces: Ca: ≤50 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: ≤50 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: CH3CH(OH)CH(NH2)CO2H
• Loss on Drying: ≤0.5% loss on drying, 110 °C
• Purity: ≥99.0% (NT)
• Melting Point: 256 °C (dec.)(lit.)
• Optical Rotation: [α]20/D -28.5±0.5°, c = 5% in H2O
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• German water hazard class: 1