Racecadotril Impurity 18 CAS CATO-C4X-110618
| CAS No. | CATO-C4X-110618 |
| Molecular Formula | C19H19NO5 |
| Molecular Weight | 341.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Racecadotril Impurity 18 (CAS CATO-C4X-110618, C19H19NO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Racecadotril Impurity 18 (C19H19NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C19H19NO5 |
| Molecular Weight | 341.36 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Racecadotril Standards
- Racecadotril EP Impurity G (CAS 81110-69-2)
- Racecadotril Impurity 20 (CAS CATO-C4X-110620)
- Racecadotril Impurity 13 (CAS 136010-55-4)
- Racecadotril Impurity 27 (CAS CATO-C4X-110627)
- Racecadotril Impurity 10 (CAS CATO-C4X-110610)
- Racecadotril Impurity 29 (CAS CATO-C4X-110629)
- Racecadotril Impurity 14 (CAS CATO-C4X-110614)
- Racecadotril EP Impurity F (CAS 87428-99-7)
Recommended Standards
- Erlotinib Impurity 73 (CAS CATO-C4X-106973)
- Rabeprazole Impurity 30 (CAS 1807988-36-8)
- Erlotinib Impurity 22 (CAS CATO-C4X-106922)
- Deferasirox Impurity 1 (CAS CATO-C4X-14381)
- Clopidogrel EP Impurity E (CAS 90055-68-8)
- Faropenem Impurity 46 (CAS CATO-C4X-128946)
- Hydroxychloroquine Impurity 38 (CAS 6823-83-2)
- 2,6-Difluoro-3,3'-bipyridine (CAS 1214373-10-0)
- Methyl 4-methoxybenzodithioate (CAS 5874-09-9)
- 2-((1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-imidazol-2-yl)thio)-1-(p-tolyl)ethan-1-one (CAS 303988-47-8)
- Pyrrolo[1,2-a]pyrazine-3-carboxylic acid (CAS 588720-53-0)
- 4-(2-Methoxyphenyl)oxazole (CAS 1126636-29-0)
- 2-(2,3-Dihydro-1H-inden-5-yloxy)-4-methylphenylamine (CAS 946683-61-0)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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