Sodium Fusidate EP Impurity C CAS CATO-C4X-11973
| CAS No. | CATO-C4X-11973 |
| Molecular Formula | C31H48O7 |
| Molecular Weight | 532.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Sodium Fusidate EP Impurity C (CAS CATO-C4X-11973) is a certified pharmaceutical impurity reference standard with the molecular formula C31H48O7 and a molecular weight of 532.71 g/mol.
Structurally, Sodium Fusidate EP Impurity C (C31H48O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 532.71 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C31H48O7 |
| Molecular Weight | 532.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Sodium Standards
- Sodium Fusidate EP Impurity B (CAS CATO-C4X-11972)
- Sodium Fusidate Impurity 25 (CAS CATO-C4X-119725)
- Sodium Fusidate EP Impurity D (CAS CATO-C4X-11974)
- Sodium Fusidate EP Impurity E (CAS CATO-C4X-11975)
- Sodium Fusidate EP Impurity F (CAS 1415035-94-7)
- Sodium Fusidate EP Impurity A (CAS 80445-74-5)
- Sodium Fusidate Impurity 20 (CAS CATO-C4X-119720)
- Sodium Fusidate EP Impurity G (CAS 4680-37-9)
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