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L-Cystine CAS No. 56-89-3
Contact us Product DetailsL-Cystine
Chemical Name | L-Cystine |
CAS No. | 56-89-3 |
Molecular Formula | C6H12N2O4S2 |
Molecular Weight | 240.3 |
Molecular Structure |  |
| Storage | Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Keep refrigerated. Store protected from moisture. Store protected from light and air. |
SPECIFICATION
ITEMS | SPECIFICATION |
Appearance | White crystals or crystalline powder |
Identification | Conforms with the reference spectrum |
| Specific rotation | -215~-225° |
| Chloride | ≤ 0.02% |
| Sulfate | ≤ 0.02% |
| Iron | ≤ 10ppm |
| Heavy metals | ≤ 10ppm |
| Organic Impurities | individual impurity ＜0.2% total impurities ＜ 2.0% |
| Loss on drying | ≤ 0.20% |
| Residue on ignition | ≤ 0.10% |
| Assay | 98.5~101.5% |
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