CAS No.: | 22839 - 47 - 0 |
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Formula: | C14h18n2o5 |
EINECS: | 245 - 261 - 3 |
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Test Items | Standard | Results |
Appearance: | White granular or powder | White Crystal Powder |
Assay (on dry basis): | 98.00-102.00% | 98.80% |
Taste: | Pure | Pure |
Specific rotation: | +14.50°~+16.50° | +15.10° |
Transmittance: | 95.0% min | 99% |
Loss on drying: | 4.50% max | 2.96% |
Residue on ignition: | 0.20% max | 0.05% |
L-a-Aspartyl-L-Phenylalanine: | 0.25% max | 0.21% |
PH Value: | 4.5-6.0 | 5.27 |
L-Phenylalanine: | 0.50% max | 0.43% |
Heavy metals (as Pb): | 10ppm max | <1ppm |
Arsenic (AS): | 3ppm max | <1ppm |
5-benzyl-3,6-dioxo-2piperazineacetic acid: | 1.5% max | 0.02% |
Other related substances: | 2.0% max | 0.68% |