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1.01542

L-Arginine

Name: L-Arginine
Brand: MM

for biochemistry

Synonym(s):

L-Arginine, Arg

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About This Item

Empirical Formula (Hill Notation):

C₆H₁₄N₄O₂

CAS Number:

74-79-3

Molecular Weight:

174.20

UNSPSC Code:

12352209

EC Index Number:

200-811-1

NACRES:

NA.21

MDL number:

MFCD00002635

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Properties

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

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 %

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c