Ala-Gln Alanyl-glutamine Glutamine-S
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Appearance |
White or almost white crystalline powder |
Solubility |
Dissolve in the water and formic acid; insoluble in methanol, chloroform, DMSO, ethyl acetate, THF |
Specific rotation |
+9.5° to +11.0° |
Identification |
HPLC,IR |
PH |
5.0 to 6.5 |
Clearance and color of solution |
Clear <No.1 standard solution Color <No.1 standard solution |
Related substance |
Cyclo-(L-alanyl-L-glutamine)≤0.5% L- alanyl L- pyroglutamic acid≤0.15% L- pyroglutamic acid≤0.05% N(2)-D-alanyl-L-glutamine≤0.05% L-alanyl-L-glutamic acid≤0.5% Unknown single impurity≤0.2% Unknow total impurity≤0.5% |
Chloride |
≤0.02% |
Sulphates |
≤0.02% |
Loss on drying |
≤0.5% |
Amino |
≤0.02% |
Fe |
≤0.001% |
As |
≤0.0001% |
Residue on ignition |
≤0.1% |
Heavy metals |
≤0.001% |
Residue on ignition |
Conforms |
Assay |
≥98.5% |
CAS NO:39537-23-0
CAS NO:9004-32-4
CAS NO:9004-32-4
CAS NO:9004-32-4
CAS NO:9004-32-4
CAS NO:9004-32-4
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