L-Cystine
CAS No.: 56-89-3
Product Name: L-Cystine
CAS#56-89-3
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
CAS#56-89-3
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Description
Spec of L-Cystine :
| Items | Specification | Results |
| Appearance | White or almost white crystalline powder | Conforms |
| Assay (On Dried Basis) | 98.5%~ 101.5% | 99.4% |
| Identification | IR: Conforms to the spectrum of reference standard The Rf value of the principal spot of sample solution corresponds to that of standard solution in Organic impurities test |
Conforms |
| Specific Rotation | -215°~-225° | -218° |
| Loss on Drying | ≤0.2% | 0.04% |
| Residue on ignition | ≤0. 1% | 0.04% |
| Chloride | ≤200ppm | Conforms |
| Sulfate | ≤200ppm | Conforms |
| Iron | ≤10ppm | Conforms |
| Individual impurities | ≤0.2% | Conforms |
| Total impurities | ≤2.0% | Conforms |
