Citalopram Impurity 23 CAS 1217846-85-9
| CAS No. | 1217846-85-9 |
| Molecular Formula | C26H25F2NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| 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.
Citalopram Impurity 23 (CAS 1217846-85-9), molecular formula C26H25F2NO2C2H2O4 and molecular weight 511.52 g/mol, is a CATO reference standard with documented purity and traceability.
Citalopram Impurity 23 (C26H25F2NO2C2H2O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C26H25F2NO2 C2H2O4 |
| Molecular Weight | 511.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Citalopram Standards
- Citalopram Impurity 38 (CAS 103146-26-5)
- Citalopram Impurity 17 (CAS 1187671-15-3)
- Citalopram EP Impurity D HBr (CAS 1188264-72-3)
- Citalopram-d6 N-Oxide (CAS 1189652-54-7)
- Citalopram-d6 (CAS 1190003-26-9)
- (R)-Citalopram-d6 N-Oxide (CAS 1217669-62-9)
- (S)-Citalopram-d6 N-Oxide (CAS 1217710-65-0)
- (S)-Citalopram-d6 Oxalate (CAS 1217733-09-9)
Recommended Standards
- (2,4-Dimethylphenyl)(1-methyl-1H-pyrrol-2-yl)methanol (CAS 1443341-13-6)
- Methyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethoxy)benzoate (CAS 1150561-63-9)
- 2-(2,5-Dioxohexahydroimidazo[4,5-d]imidazol-1(2H)-yl)-3-methylbutanoic acid (CAS 1094602-32-0)
- 7-bromo-1,2-dihydroquinazolin-2-one (CAS 953039-65-1)
- 2-Methyl-2-(naphthalen-2-yl)propanoic acid (CAS 13365-41-8)
- 4-Amino-6-(difluoromethyl)-2-fluoronicotinaldehyde (CAS 1805325-36-3)
- N-(1-cyclopropylethyl)-3-methoxypropan-1-amine (CAS 1038236-66-6)
- 1-Amino-3-(5-chlorothiophen-2-yl)propan-2-ol (CAS 1490019-61-8)
- 4-Methyl-2-(N,N-dimethylaminomethyl)bromobenzene (CAS 27561-52-0)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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