1.08411

L-Threonine

for biochemistry

• Synonym(e): L-Threonine, Thr, 2-Amino-3-hydroxybutanoic acid
• Empirische Formel (Hill-System): C₄H₉NO₃
• CAS-Nummer: 72-19-5
• Molekulargewicht: 119.12
• UNSPSC Code: 12352209
• EC Index Number: 200-774-1
• NACRES: NA.21
• MDL number: MFCD00064270

Eigenschaften

• Quality Level: 200
• form: solid
• pH: 5-6 (20 °C, 100 g/L in H₂O)
• mp: 265-270 °C
• solubility: 90 g/L
• bulk density: 370 kg/m³
• storage temp.: 2-30°C
• SMILES string: [N+H3]C(C(O)C)C(=O)[O-]
• InChI: 1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)
• InChI key: AYFVYJQAPQTCCC-UHFFFAOYSA-N

Beschreibung

Analysis Note

Assay (perchloric acid titration): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine powder
Appearance of solution (1 mol/l, water): clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l): -15.4 to -16.4
Heavy metals (as Pb): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %

Sicherheitshinweise

• Lagerklasse: 13 - Non Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable