3705-42-8Z-L-glutamic acid α-benzyl ester high purityZ-L-glutamic acid α-benzyl ester Cbz-L-Glutamic acid 1-benzyl ester
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Inspection |
Standard |
Test Results |
Appearance |
White to off-white powder |
Conforms |
Purity(HPLC) |
≧99.0% |
99.68% |
Optical Purity |
≦0.5% D-enantiomer |
Not detectable |
Clarity of solution |
0.3 gram in 2ml MeOH clear solution |
Conforms |
Melting point |
95-105℃ |
98.5-101.4℃ |
Water content(K.F) |
≦1.0% |
0.18% |
Specific Rotation |
-23±2?(C=1 in MeOH) |
-23.2?(C=1 in MeOH) |
Loss on drying |
≦1.0%(40℃,2h) |
0.18% |
Mass Spectrum |
In accordance with the structure |
Conforms |
IR Spectrum |
In accordance with the structure |
Conforms |
NMR Spectrum |
In accordance with the structure |
Conforms |
Conclusion |
The result conforms to the enterprise standard as above |
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