L-Arginine 2-oxopentanedioate CAS 5256-76-8

L-Arginine alpha-ketoglutarate (2:1)
CAS 5256-76-8
Assay 99%min
Packing 25kg/drum

Name	L-Arginine 2-oxopentanedioate
Synonyms	L-Arginine alpha-ketoglutarate (2:1)

Molecular Structure
Molecular Formula	2(C₆H₁₄N₄O₂)^.C₅H₆O₅
Molecular Weight	530.50
CAS Registry Number	5256-76-8
EC Number	226-059-4

Uses：Nutritional supplements, mostly used in health care products and functional foods.

Specification：

Item		Specification
Appearance		White to yellowish Crystalline powder
Assay(%)(On dried basis)	L-Arginine	64.7~71.5
	α-ketoglutaric acid	26.5~30.5
Solubility		Clear(1g in 10mL H₂O)
pH		5.5~7.0(10% H₂O)
Specific rotation(°)[α]D²⁰		+17.5±1.0(8g/100ml,6N HCl)
Loss on Drying(%)		≤1.0
Residue on ignition(%)		≤0.1
Heavy Metals(as Pb)(ppm)		≤10
As(ppm)		≤1
Pb(ppm)		≤3
Cadmium(ppm)		≤1
Hg(ppm)		≤0.1
(Cl^-)(ppm)		≤500
Fe³⁺(ppm)		≤10
pile up the density(g/mL)		0.50±0.05
Total Plate Count		≤1000cfu/g
Yeast&Mold		≤100cfu/g
E.Coli		Negative
Salmonella		Negative
Staphylococcus		Negative

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