Reference Standard
| CAS Number | Not assigned |
| Formula | C₄₂H₆₉NO₁₆ |
| Molecular Weight | ~843 g/mol |
| Purity | ≥90% |
| Storage | Refrigerated (2–8 °C) |
An oxidized or hydroxylated derivative of josamycin generated during manufacturing or storage.
Used for regulatory impurity qualification and system suitability.
HPLC-UV, LC-MS, and forced degradation comparison.
