Fluoxetine Impurity 31 CAS 5409-66-5
| CAS No. | 5409-66-5 |
| Molecular Formula | C19H21NO2 |
| Molecular Weight | 295.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Fluoxetine Impurity 31 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.
Fluoxetine Impurity 31 (CAS 5409-66-5) is a certified pharmaceutical impurity reference standard with the molecular formula C19H21NO2 and a molecular weight of 295.38 g/mol.
Fluoxetine Impurity 31 (C19H21NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C19H21NO2 |
| Molecular Weight | 295.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Fluoxetine Standards
- Fluoxetine Impurity 26 (CAS 103756-12-3)
- Fluoxetine Impurity 24 (CAS CATO-C4X-135224)
- Fluoxetine Impurity 20 (CAS CATO-C4X-135220)
- Fluoxetine Impurity 11 (CAS 56161-71-8)
- Fluoxetine Impurity 12 (CAS CATO-C4X-135212)
- Fluoxetine Impurity 51 (CAS 56161-72-9)
- Fluoxetine (CAS 54910-89-3)
- Fluoxetine-D5 (CAS 1173147-79-9)
Recommended Standards
- Desipramine Impurity 1 (CAS CATO-C4X-20831)
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- Doxepin Impurity 2 (CAS 131523-93-8)
- Cimetidine EP Impurity A (CAS 52378-40-2)
- Brivaracetam Impurity 134 (CAS CATO-C4X-2007134)
- Olanzapine Impurity 58 (CAS CATO-C4X-117858)
- 4-Methyl-1-(2-piperidin-4-ylethyl)piperidine (CAS 756413-81-7)
- 3,5-Dichloro-2-methylbenzene-1,4-diamine (CAS 1513522-62-7)
- N1,N1,N2,2-tetramethylpropane-1,2-diamine (CAS 1343371-42-5)
- 10-Bromo-9-fluoro-2-iodo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine (CAS 1401305-32-5)
- 5-Fluoro-2,2-dimethyl-8-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)-4H-benzo[d][1,3]dioxin-4-one (CAS 2170835-14-8)
- 1-[(3-formylphenyl)sulfanyl]-N,N-dimethylformamide (CAS 153561-35-4)
- Acetyl-(Leu28·31)-Neuropeptide Y (24-36) (CAS 155709-24-3)
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