D-Asparagine Monohydrate

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D-Asparagine Monohydrate
CAS RN:5794-24-1
 

Solubility in water	Colorless & clear (c=2)
Specific rotation (20 °C)	-33.5°～-36.5°(c= 10, 6M-HCl)
Loss on drying	11.5%～12.5%
Residue on ignition (as sulfate)	Not more than 0.1%
Chloride (Cl)	Not more than 0.03%
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 acid (D-Asp)	Not more than 1.0% by T.L.C (The spotted amount, 20 mg)
Assay (as anhydrous)	98.5%～101.0%
L-Isomer	Not more than 0.5%

 




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