L(+)-Arginine 74-79-3 L-Arg

White rhombic crystals (precipitated from water, containing 2 molecules of crystalline water) or monoclinic plate-like crystals (without crystalline water), odorless, bitter taste; highly soluble in water (solubility in water at 0°C is 83 g/L, solubility in water at 50°C is 400 g/L), slightly soluble in ethanol, insoluble in ether; pI 6.0; When heated to 105°C, it loses two molecules of crystalline water; at 30°C, the color darkens; decomposition point is 244°C; specific rotation [α]20D +12.5° (0.5–2.0 mg/mL, H₂O), [α]20D +27.3° (0.5–2.0 mg/mL, 6 mol/L HCl); The aqueous solution has a maximum absorption at 205 nm (ε = 3.28 at 1 g).

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Model:
74-79-3
Brand:
Boss Chemical
Code:
74-79-3

Product Description

L(+)-Arginine Basic information
Product Name:	L(+)-Arginine
CAS:	74-79-3
MF:	C6H14N4O2
MW:	174.2
EINECS:	200-811-1
Mol File:	74-79-3.mol
L(+)-Arginine Chemical Properties
Melting point	222 °C (dec.) (lit.)
alpha	27.1 º (c=8, 6N HCl)
Boiling point	305.18°C (rough estimate)
bulk density	640kg/m3
density	1.2297 (rough estimate)
FEMA	3819 \| L-ARGININE
refractive index	27 ° (C=8, 6mol/L HCl)
storage temp.	2-8°C
solubility	H2O: 100 mg/mL
pka	1.82, 8.99, 12.5(at 25℃)
form	powder
color	white
PH	10.5-12.0 (25℃, 0.5M in H2O)
PH Range	10.5 - 12
Odor	Faint
Odor Type	bland
optical activity	[α]20/D +27°, c = 8 in 6 M HCl
biological source	synthetic
Water Solubility	148.7 g/L (20 ºC)
λmax	λ: 260 nm Amax: ≤0.2
λmax	λ: 280 nm Amax: ≤0.1
Sensitive	Air Sensitive
Merck	14,780
JECFA Number	1438
BRN	1725413
Specific Activity	1035-1401nmol/min·mg
Stability:	Stable. Incompatible with strong oxidizing agents.
InChIKey	ODKSFYDXXFIFQN-BYPYZUCNSA-N
LogP	-4.2
CAS DataBase Reference	74-79-3(CAS DataBase Reference)
NIST Chemistry Reference	L-Arginine(74-79-3)
EPA Substance Registry System	L-Arginine (74-79-3)