Fluoxetine Impurity 38 CAS 2538-50-3
| CAS No. | 2538-50-3 |
| Molecular Formula | C10H13NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Fluoxetine Impurity 38 (CAS 2538-50-3), a pharmacopoeial impurity reference standard (molecular formula C10H13NOHCl, MW 199.68 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Fluoxetine Impurity 38 (C10H13NOHCl) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Fluoxetine Impurity 38 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 | C10H13NO HCl |
| Molecular Weight | 199.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Fluoxetine Standards
- Fluoxetine Impurity 37 (CAS 101-98-4)
- Fluoxetine Impurity 44 (CAS 101-98-4（free base）)
- Fluoxetine Impurity 19 (CAS 1026723-45-4)
- Fluoxetine Impurity 26 (CAS 103756-12-3)
- (S)-Fluoxetine Hydrochloride (CAS 114247-06-2)
- (R)-Fluoxetine Hydrochloride (CAS 114247-09-5)
- Fluoxetine oxalate, >98% (CAS 114414-02-7)
- Fluoxetine-d5 HCl (CAS 1173020-43-3)
Recommended Standards
- Dapagliflozin dibromide impurity (CAS 1043252-56-7)
- Cefixime EP Impurity F (CAS 79368-95-9)
- Formoterol Impurity 24 (CAS 49861-92-9)
- Sparteine sulfate pentahydrate (CAS 6160-12-9)
- [(1-Pyrazin-2-ylpiperidin-4-yl)methyl]amine (CAS 170353-19-2)
- 1-(2-bromo-1-fluoroethyl)-4-fluorobenzene (CAS 118887-66-4)
- Uridine Impurity 17 (CAS CATO-C4X-233417)
- (s)-2-(1-Amino-2-hydroxyethyl)-4-fluorophenol (CAS 1213605-79-8)
- 2-(2-(1H-Imidazol-1-yl)ethyl)piperidine dihydrochloride (CAS 1185411-01-1)
- Heme iron polypeptide(Hematin) (CAS 14875-96-8)
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