Limaprost Impurity 18 CAS CATO-C4X-214518
| CAS No. | CATO-C4X-214518 |
| Molecular Formula | C30H50O7 |
| Molecular Weight | 522.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Limaprost Impurity 18 (CAS CATO-C4X-214518, C30H50O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Limaprost Impurity 18 (C30H50O7) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C30H50O7 |
| Molecular Weight | 522.73 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Limaprost Standards
- Limaprost Impurity 14 (CAS CATO-C4X-214514)
- Limaprost Impurity 16 (CAS CATO-C4X-214516)
- Limaprost Impurity 19 (CAS CATO-C4X-214519)
- Limaprost Impurity 9 (CAS CATO-C4X-21459)
- Limaprost Impurity 10 (CAS CATO-C4X-214510)
- Limaprost Impurity 6 (CAS CATO-C4X-21456)
- Limaprost Impurity 7 (CAS CATO-C4X-21457)
- Limaprost Impurity 8 (CAS CATO-C4X-21458)
Recommended Standards
- Fusidic Acid-d6 (CAS CATO-C4X-119726)
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