Rivaroxaban Impurity 7(S-isomer) CAS 161596-47-0
| CAS No. | 161596-47-0 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Rivaroxaban Impurity 7(S-isomer).
As a process- or degradation-related impurity, Rivaroxaban Impurity 7(S-isomer) (CAS 161596-47-0, C11H9NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Rivaroxaban Impurity 7(S-isomer) (C11H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 203.19 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 1 |
Related Rivaroxaban Standards
- Rivaroxaban Impurity 7(R-isomer) (CAS 181140-34-1)
- Rivaroxaban Impurity 32 (CAS 956904-18-0)
- Rivaroxaban Impurity 108 (CAS CATO-C4X-1090108)
- Rivaroxaban Impurity 122 (CAS CATO-C4X-1090122)
- Rivaroxaban Impurity 49 (CAS 1224684-98-3)
- Rivaroxaban Impurity 105 (CAS 1261222-08-5)
- Rivaroxaban Impurity 107 (CAS 482308-13-4)
- Rivaroxaban Impurity 134 (CAS 36157-41-2)
Recommended Standards
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