Citalopram EP Impurity L CAS CATO-C4X-110930
| CAS No. | CATO-C4X-110930 |
| Molecular Formula | C20H22N2O |
| Molecular Weight | 306.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Citalopram EP Impurity L.
CATO supplies Citalopram EP Impurity L (CAS CATO-C4X-110930), a pharmacopoeial impurity reference standard (molecular formula C20H22N2O, MW 306.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Citalopram EP Impurity L is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 306.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Citalopram EP Impurity L meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H22N2O |
| Molecular Weight | 306.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Citalopram Standards
- Citalopram impurity 82 (CAS 62498-67-3)
- Citalopram Impurity 72 (CAS 62498-69-5)
- 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 17 (CAS 1187671-15-3)
- Citalopram-d (CAS 1309283-28-0)
Recommended Standards
- (4R,6R)-4-hydroxy-6-(2-((1S,2S,8S,8aR)-8-hydroxy-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl)ethyl)tetrahydro-2H-pyran-2-one (CAS 58889-19-3)
- Melitracen Impurity 12 (CAS CATO-C4X-120212)
- (3aS,5aS,6R,9aR,9bS)-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid 4-Nor-3,5-seco-5,17-dioxoandrostan-3-oic Acid 5,17-Dioxo-3,5-seco-A-norandrostan-3-oic Acid 6857-88-1 [3aS-(3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid (CAS 6857-88-1)
- Roxatidine Impurity 29 (CAS CATO-C4X-121329)
- Crisaborole impurity 121 (CAS CATO-C4X-2021121)
- Tivozanib Impurity 29 (CAS CATO-C4X-340029)
- Amorolfine Impurity 92 (CAS CATO-C4X-154292)
- 1,2,5-Tribromo-3-(trifluoromethyl)benzene (CAS 89642-34-2)
- (R)-6-methylchroman-4-amine (CAS 756818-55-0)
- 4-(Benzyloxy)-1-bromo-2-chlorobenzene (CAS 729590-57-2)
- (R)-N-Benzyl-N-cyclopropylpyrrolidin-3-amine (CAS 1353995-30-8)
- 1,8-Bis(cyclohexylamino)anthracene-9,10-dione (CAS 478695-69-1)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-(3,4-dichloro-phenoxy)-2-pyrrolidinecarboxylic acid (CAS 1217803-05-8)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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