L-Glutamin
-
Molecular Structure
Detailed Description
Item
Specification
Result
Assay (dried substance)
98.5% ~ 101.5%
99.5%
Specific rotation[α]D20
+6.3 ~ +7.3°
+6.8°
Loss on drying, %
≤0.30
0.20
Residue on ignition, %
≤0.10
0.06
Heavy metals (Pb), ppm
≤10
8
Arsenic (As2O3), ppm
≤1
0.5
State of solution, %
≥98 (2.5% aqueous solution)
98.6
pH
4.5 ~ 6.0
5.2
Sulfate (SO4), %
≤0.020
<0.020
Chloride (Cl), %
≤0.020
<0.020
Ammonium (NH4), %
≤0.10
<0.10
Iron (Fe), ppm
≤10
5
Other amino acids, %
≤0.5
0.2
Aerobic plate count, cfu/g
≤1000
<1000
Pathogenic bacteria, cfu/g
Negative
Conforms
Conclusion
Conforms to AJI2002/FCCV/USP29