Citalopram Impurity 38 CAS 103146-26-5
| CAS No. | 103146-26-5 |
| Molecular Formula | C20H23FN2O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H23FN2O2HBr, Citalopram Impurity 38 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 423.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Citalopram Impurity 38 (CAS 103146-26-5), a pharmacopoeial impurity reference standard (molecular formula C20H23FN2O2HBr, MW 423.33 g/mol) used for the identification and quantification of trace impurities in APIs.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Citalopram Impurity 38 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.
Physical & Chemical Properties
| Molecular Formula | C20H23FN2O2 HBr |
| Molecular Weight | 423.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Related Citalopram Standards
- 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)
- (R)-Citalopram N-Oxide (CAS 1217761-31-3)
Recommended Standards
- Ibandronic Impurity 2 (CAS 625120-81-2)
- Regorafenib Impurity 13 (CAS 835621-11-9)
- Abemaciclib impurity 113 (CAS CATO-C4X-2937113)
- 4,6-Dichloroindolin-2-one (CAS 1082041-83-5)
- 3-(Hydroxymethyl)-5-methylpyridin-2-ol (CAS 1227601-70-8)
- N-((Tetrahydro-2H-pyran-2-yl)methyl)ethanamine hydrochloride (CAS 1185346-17-1)
- (S)-5-(2-(Methylamino)propyl)benzene-1,2,4-triol (CAS 136706-32-6)
- Methyl 6-(tert-butyl)-2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 438532-45-7)
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)thio)acetamide (CAS 570361-94-3)
- (D-Ala1)-Peptide T amide (CAS 106362-34-9)
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