1.01542

L-Arginine

for biochemistry

• Synonym(e): L-Arginine, Arg
• Empirische Formel (Hill-System): C₆H₁₄N₄O₂
• CAS-Nummer: 74-79-3
• Molekulargewicht: 174.20
• UNSPSC Code: 12352209
• EC Index Number: 200-811-1
• NACRES: NA.21
• MDL number: MFCD00002635

Eigenschaften

• Quality Level: 100
• form: solid
• potency: >5110 mg/kg LD₅₀, oral (Rat)
• pH: 11.4 (20 °C, 100 g/L in H₂O)
• mp: 238 °C (decomposition)
• bulk density: 640 kg/m³
• storage temp.: 2-30°C
• SMILES string: [N+H3]C(CCCN=C(N)N)C(=O)[O-]
• InChI: 1S/C6H14N4O2/c7-4(5(11)12)2-1-3-10-6(8)9/h4H,1-3,7H2,(H,11,12)(H4,8,9,10)
• InChI key: ODKSFYDXXFIFQN-UHFFFAOYSA-N

Beschreibung

Analysis Note

Assay (perchloric acid titration, calculated on dried substance): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine-grain powder or colorless crystals
Appearance of solution (0.5 mol/l, water): clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): +25.0 to +26.5
UV-Absorption (260 nm; 0.5 mol/l; 1 cm; water): ≤ 0.35
UV-Absorption (280 nm; 0.5 mol/l; 1 cm; water): ≤ 0.15
Chloride (Cl): ≤ 0.02 %
Sulfate (SO₄): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Co (Cobalt): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
NH₄ (Ammonium): ≤ 0.01 %
Zn (Zinc): ≤ 0.0005 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
Loss on drying (105 °C; 3 h): ≤ 0.5 %

Sicherheitshinweise

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