| Product name: | Levothyroxine sodium |
| CAS: | 25416 65 3 |
| EINECS: | 200-221-4 |
| MF: | C15H10I4NNaO4 |
| MW: | 798.85 |
| Purity: | 98% |
| Appearance: | White needle crystalline powder |
| Test Items | Specification | Test Results | |
| Appearance | White or off-white powder | white powder | |
| Identification | UV conform | Conforms | |
| Organic nitrogenous | Conforms | Conforms | |
| Citrate | Conforms | Conforms | |
| Water | Not more than 1.0% | 0.38% | |
| Heavy water | Not more than 0.002% | Conforms | |
|
Related impuries |
Related compound A:Not more than 2.0% | 0.86% | |
| Individual:Not more than 0.5% | 0.38% | ||
| (Z)isomer | Conforms | Conforms | |
| Assay | Between98.0~102.0% | 99.2% | |
| Organicvolatile impuritise | Conforms | Conforms | |