Proparacaine Impurity 13 CAS CATO-C4X-202713
| CAS No. | CATO-C4X-202713 |
| Molecular Formula | C16H25NO3 |
| Molecular Weight | 279.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Proparacaine Impurity 13 (CAS CATO-C4X-202713) is a certified pharmaceutical impurity reference standard with the molecular formula C16H25NO3 and a molecular weight of 279.37 g/mol.
Structurally, Proparacaine Impurity 13 (C16H25NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 279.37 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C16H25NO3 |
| Molecular Weight | 279.37 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Proparacaine Standards
- Proparacaine Impurity 16 (CAS 15788-85-9)
- Proparacaine Impurity 28 (CAS 78329-81-4)
- Proparacaine Impurity 33 (CAS 754936-74-8)
- Proparacaine Impurity 15 (CAS 2102411-30-1)
- Proparacaine Impurity 24 (CAS 2815508-81-5)
- Proparacaine Impurity 29 (CAS CATO-C4X-202729)
- Proparacaine (CAS 499-67-2)
- Proparacaine Impurity 27 (CAS CATO-C4X-202727)
Recommended Standards
- Brivaracetam Impurity 215 (CAS CATO-C4X-2007215)
- Brivaracetam Impurity 147 (CAS CATO-C4X-2007147)
- Bilastine Impurity 55 (CAS CATO-C4X-225355)
- Brivaracetam Impurity 117 (CAS CATO-C4X-2007117)
- Eperisone Impurity 32 (CAS CATO-C4X-227932)
- Aripiprazole Impurity 86 (CAS CATO-C4X-100886)
- Amlodipine Besylate EP Impurity B (CAS 721958-72-1)
- 7-Hydroxy Fluphenazine (CAS 33098-48-5)
- Methyl 7-methyl-1H-indole-6-carboxylate (CAS 733035-34-2)
- AOH1160 (CAS 2089314-57-6)
- 4-(3-(Dimethylamino)phenyl)piperidin-4-ol (CAS 1398504-10-3)
- Tert-butyl ((1-((tetrahydro-2H-pyran-4-yl)methyl)piperidin-4-yl)methyl)carbamate (CAS 935696-99-4)
- 2-Oxo-1,2-dihydropyridine-3-carbohydrazide (CAS 153336-74-4)
- Peptide 437 (CAS CATO-CPTD788437)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com