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1.01542 Millipore

L-Arginine

for biochemistry

Synonym: Arg, L-Arginine

  • CAS Number 74-79-3

  • Empirical Formula (Hill Notation) C6H14N4O2

  • Molecular Weight 174.20

  •  MDL number MFCD00002635

  •  EC Index Number 200-811-1

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Properties

Related Categories Amino Acids, Biochemicals and Reagents More...
Quality Level   100
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
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
storage conditions   Store at +5°C to +30°C.

Description

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 %

Safety & Documentation

Safety Information

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Protocols & Articles

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