EsCitalopram EP Impurity I CAS 1370643-22-3
| CAS No. | 1370643-22-3 |
| Molecular Formula | C20H21FN2O |
| Molecular Weight | 324.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
EsCitalopram EP Impurity I (C20H21FN2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies EsCitalopram EP Impurity I (CAS 1370643-22-3), a pharmacopoeial impurity reference standard (molecular formula C20H21FN2O, MW 324.39 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures EsCitalopram EP Impurity I 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 | C20H21FN2O |
| Molecular Weight | 324.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related EsCitalopram Standards
- Escitalopram EP Impurity K (CAS 128196-02-1)
- EsCitalopram Impurity 3 (CAS CATO-C4X-16343)
- ESCitalopram N-Oxide (CAS 917482-45-2)
- EsCitalopram EP Impurity H (CAS 63284-72-0)
- Escitalopram EP Impurity A(R-Isomer) (CAS CATO-C4X-110920)
- Escitalopram Impurity 2 (CAS 103146-25-4)
- Escitalopram EP Impurity M (CAS 1881237-26-8)
- Escitalopram EP Impurity F (CAS 2102609-59-4)
Recommended Standards
- Citalopram (CAS 59729-33-8)
- N-(3-(benzyloxy)pyridin-2-yl)-2-(thiophen-2-yl)acetamide (CAS 1024391-55-6)
- (S)-Citalopram (CAS 128196-01-0)
- 2-(2-(Phenylamino)thiazol-4-yl)-N-(pyridin-2-ylmethyl)acetamide (CAS 1040676-25-2)
- Ixazomib Impurity 75 (CAS CATO-C4X-126775)
- Tenofovir alafenamide Impurity 32 (CAS CATO-C4X-179732)
- Fluralaner Impurity 63 (CAS 3027861-23-7)
- N-(2,5-dimethoxyphenyl)-4-fluorobenzamide (CAS 198134-75-7)
- 2-Amino-3-(1-ethyl-3-methyl-1H-pyrazol-4-yl)propanoic acid (CAS 1104624-49-8)
- (Z)-N'-Hydroxy-2-(phenylsulfinyl)acetimidamide (CAS 17665-59-7)
- N-Boc-3-bromo-4-oxopiperidine (CAS 188869-05-8)
- Ilaprazole Impurity 146 (CAS CATO-C4X-1130146)
- 6-(Aminomethyl)-3,4-dimethylcyclohex-3-ene-1-sulfonic acid (CAS 906074-28-0)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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