Citalopram Impurity 65 CAS CATO-C4X-110965
| CAS No. | CATO-C4X-110965 |
| Molecular Formula | C20H23FN2O3 |
| Molecular Weight | 358.41 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 Citalopram Impurity 65.
As a process- or degradation-related impurity, Citalopram Impurity 65 (CAS CATO-C4X-110965, C20H23FN2O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C20H23FN2O3, Citalopram Impurity 65 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 358.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Citalopram Impurity 65 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H23FN2O3 |
| Molecular Weight | 358.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Citalopram Standards
- Citalopram Impurity 75 (CAS CATO-C4X-110975)
- Citalopram impurity 79 (CAS CATO-C4X-110979)
- Citalopram Impurity 12 (CAS CATO-C4X-110912)
- Citalopram Impurity 66 (CAS CATO-C4X-110966)
- Citalopram Impurity 76 (CAS CATO-C4X-110976)
- Citalopram Impurity 16 (CAS 762266-07-9)
- Citalopram-d6 N-Oxide (CAS 1189652-54-7)
- (R)-Citalopram-d6 N-Oxide (CAS 1217669-62-9)
Recommended Standards
- Capecitabine Impurity 32 (CAS CATO-C4X-102432)
- Omeprazole impurity 31 (CAS CATO-C4X-125531)
- Zinviroxime (CAS 72301-78-1)
- Cefprozil Impurity 58 (CAS CATO-C4X-149258)
- Ceritinib Impurity 31 (CAS CATO-C4X-104831)
- Isavuconazole Impurity 203 (CAS CATO-C4X-1236203)
- Propranolol Impurity 38 (CAS CATO-C4X-151937)
- 2,6-Bis(2’,2’-dimethylpropionyl)pyridine (CAS 156022-06-9)
- N,N'-(6-Formylpyridine-2,4-diyl)diacetamide (CAS 1393582-74-5)
- 5-Chloroisoxazolo[5,4-b]pyridin-3(2H)-one (CAS 196708-45-9)
- (S)-2,3;4,5-Bis(1,2,3- phenylnaphtho)-1,6,9,12,15,18-hexaoxacycloeicosa-2,4-diene (CAS 75684-75-2)
- 2-(Pyridin-2-yloxy)ethanol (CAS 56446-64-1)
- 3-Benzylthiophene (CAS 27921-48-8)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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