D-Arginine
CAS RN: 157-06-2
 

Solubility in water	Colorless & clear (c=5)
Specific rotation [α]D20	-26.5°～-27.8°(c= 8, 6M-HCl)
Loss on drying	Not more than 0.5%
Residue on ignition (as sulfate)	Not more than 0.2%
Chloride (Cl)	Not more than 0.05%
Sulfate (SO4)	Not more than 0.03%
Heavy metals (as Pb)	Not more than 10ppm
Iron (Fe)	Not more than 10ppm
Ammonium (NH4)	Not more than 0.02%
Arsenic (As2O3)	Not more than 1ppm
Other amino acids	Not detected by T.L.C.(The spotted amount, 20μg)
Assay	98.5%～101.0%
L-Isomer	Not more than 0.5%

 

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