Citalopram Impurity 17 CAS 1187671-15-3
| CAS No. | 1187671-15-3 |
| Molecular Formula | C20H24N2O2 |
| Molecular Weight | 324.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Citalopram Impurity 17 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Citalopram Impurity 17 (CAS 1187671-15-3) is a certified pharmaceutical impurity reference standard with the molecular formula C20H24N2O2 and a molecular weight of 324.42 g/mol.
The molecular framework of Citalopram Impurity 17 (C20H24N2O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C20H24N2O2 |
| Molecular Weight | 324.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Related Citalopram Standards
- Citalopram Impurity N1 (CAS 920282-75-3)
- Citalopram EP Impurity I (Mixture of Z and E Isomers) (CAS CATO-C4X-110918)
- (S)-Citalopram (CAS 128196-01-0)
- Citalopram (CAS 59729-33-8)
- Citalopram Impurity 22 (CAS 227954-87-2)
- Citalopram Impurity 64 (CAS CATO-C4X-110964)
- Citalopram-d4 (CAS 1219908-84-5)
- Citalopram-d6 (CAS 1190003-26-9)
Recommended Standards
- HC-258 (CAS 3056128-12-9)
- Acotiamide Impurity 3 (CAS 1824734-16-8)
- 898788-40-4 (4-Methoxyphenyl){3-[(4-methylpiperazin-1-yl)methyl]phenyl}methanone DTXSID60643412 (CAS 898788-40-4)
- Bifonazole impurity 19 (CAS CATO-C4X-156019)
- Morpholine Impurity 6 (CAS CATO-C4X-31686)
- Huperzine A Impurity 3 (CAS CATO-C4X-31233)
- Esomeprazole Impurity 131 (CAS CATO-C4X-1112131)
- 1-benzyl-1H-1,3-benzodiazole-5-carboxylic acid (CAS 284673-18-3)
- 2,5-Difluoro-4-isopropoxybenzaldehyde (CAS 2121512-60-3)
- 6-Methoxy-1,4-dihydroquinoxaline-2,3-dione (CAS 31910-18-6)
- n-Octylmagnesium Bromide (ca. 22% in Tetrahydrofuran, ca. 1mol/L) (CAS 17049-49-9)
- 2-(3-Methoxybenzyl)azepane (CAS 68841-07-6)
- 4',5'-Bis(4-carboxyphenyl)-3',6'-dimethyl-[1,1':2',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 2161327-52-0)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
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