Tamoxifen Impurity 25 CAS CATO-C4X-123325
| CAS No. | CATO-C4X-123325 |
| Molecular Formula | C23H22O |
| Molecular Weight | 314.42 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 Tamoxifen Impurity 25.
As a process- or degradation-related impurity, Tamoxifen Impurity 25 (CAS CATO-C4X-123325, C23H22O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, a hydroxyl group, an ether linkage, Tamoxifen Impurity 25 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 314.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 Tamoxifen Impurity 25 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 | C23H22O |
| Molecular Weight | 314.42 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Tamoxifen Standards
- Tamoxifen Impurity 21 (CAS CATO-C4X-123321)
- Tamoxifen EP Impurity G (CAS 68047-07-4)
- Tamoxifen Citrate Impurity 9 (CAS 69967-80-2)
- Tamoxifen Impurity 30 (CAS CATO-C4X-123330)
- Tamoxifen Impurity 11 (CAS 5435-24-5)
- Tamoxifen EP Impurity C (CAS 19957-51-8)
- Tamoxifen EP Impurity C (CAS 97151-10-5)
- Tamoxifen Citrate - Impurity D (CAS 197251-11-9)
Recommended Standards
- Estradiol Impurity 25 (CAS 4245-41-4)
- (S,S)-Palonosetron Acid HCl (CAS CATO-C4X-11058)
- Estradiol Impurity 54 (CAS 1743-60-8)
- (S,S)-Palonosetron Acid (CAS 2407763-21-5)
- Dotinurad Impurity 205 (CAS CATO-C4X-2494205)
- Selexipag Impurity 36 (CAS CATO-C4X-196136)
- Mivacurium Chloride Impurity 6 (R-S isomer) (CAS 107740-63-6)
- 2,7-Dimethyl-7H-purin-6-amine (CAS 102153-93-5)
- Methyl 2-oxo-5-propylcyclohexane-1-carboxylate (CAS 942414-11-1)
- N-[(3R,6S)-6-(2,3-Difluorophenyl)hexahydro-2-oxo-1-(2,2,2-trifluoroethyl)-1H-azepin-3-yl]-4-(2,3-dihydro-2-oxo-1H-imidazo[4,5-b]pyridin-1-yl)-1-piperidinecarbo (CAS 781649-09-0)
- Propargyl-PEG<SUB>2</SUB>-acid (CAS 1859379-85-3)
- 2,3,3,3-Tetrafluoropropanoic acid (CAS 359-49-9)
- 1-phenyl-2-(piperidin-1-yl)ethane-1,2-dione (CAS 14377-63-0)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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