Citalopram Oxalate - API Standards CAS 207559-01-1
| CAS No. | 207559-01-1 |
| Molecular Formula | C20H21FN2O |
| 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 Oxalate - API Standards (CAS 207559-01-1), molecular formula C20H21FN2OC2H2O4 and molecular weight 414.43 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Citalopram Oxalate - API Standards (C20H21FN2OC2H2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 414.43 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C20H21FN2O C2H2O4 |
| Molecular Weight | 414.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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
- Methyl 1-amino-3-(4-bromo-1h-pyrazol-1-yl)cyclopentane-1-carboxylate (CAS 1501587-14-9)
- 4-Chloro-2-{[(4-methoxyphenyl)methyl]amino}-1,3-thiazole-5-carbonitrile (CAS 866155-93-3)
- (3α,5α)-3- Hydroxy-estr- 1- en- 17- one (CAS 1173997-84-6)
- Diethyl pyridine-2,5-dicarboxylate (CAS 5552-44-3)
- 2-(4-(4-Nitrophenoxy)phenyl)ethan-1-amine (CAS 1216195-15-1)
- 3-(4-Bromophenyl)-1-phenyl-1H-pyrazole-5-carboxylic acid (CAS 618102-61-7)
- 2-(Pyridin-4-yl)isothiazolidine 1,1-dioxide (CAS 158090-60-9)
- Bacimethrin (CAS 3690-12-8)
- 6-(3-Fluorophenyl)-N-[1-(2,2,2-trifluoroethyl)-4-piperidyl]nicotinamide (CAS 1033836-12-2)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
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