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L-Arginine
  Quality standard:USP, AJI, FCC
CAS No.: 74-79-3
Kosher:?ì
Halal:?ì
Class:
Chemical Name and Synonyms:
2-Amino-5-guanidinovaleric acid; 2-Amino-5-guanidinopentanoic acid; Arg; Arginine; L-Arginine; L-(+)-Arginine;
Structure Formula: 
                                      
Molecular Formula:                          C6H14N4O2
Molecular Weight:                             174.2022
Melting Point:                                      223 - 224
Cas No:                                               [74-79-3]
Characteristics:                                 White crystals or crystalline powder; Freely soluble in water.
Quality Standards:                            USP, AJI.

 

Item Specifications (USP) Specifications (AJI)
Description White crystals or crystalline powder White crystals or crystalline powder
Identification Infrared absorption spectrum Infrared absorption spectrum
Specific rotation
[a]D20°		 +26.3 °- +27.7° +26.9 °- +27.9°
State of solution
/Transmittance 		--- ≥ 98.0%
Chloride (Cl) ≤ 0.05% ≤ 0.020%
Ammonium (NH4) --- ≤ 0.02%
Sulfate (SO4) ≤ 0.03% ≤ 0.020%
Iron (Fe) ≤ 0.003% ≤ 10PPm
Heavy metals (Pb) ≤ 0.0015% ≤ 10PPm
Arsenic (As2O3) --- ≤ 1PPm
Other amino acids --- Chromatographically not detectable
Loss on drying ≤ 0.5% ≤ 0.5%
Residue on ignition
(sulfated)		 ≤ 0.3% ≤ 0.10%
Assay 98.5-101.5% 99.0-101.0%
PH --- 10.5-12.0
Organic volatile impurities Meets the requirements   ---
Packaging and Storage: In 25kgs fiber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
Recommended limit: 2 year.