Ketoprofen Impurity 36 CAS 872091-00-4
| CAS No. | 872091-00-4 |
| Molecular Formula | C11H11NO2 |
| Molecular Weight | 189.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ketoprofen Impurity 36 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 189.21 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).
Ketoprofen Impurity 36 (CAS 872091-00-4) is a certified pharmaceutical impurity reference standard with the molecular formula C11H11NO2 and a molecular weight of 189.21 g/mol.
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 Ketoprofen Impurity 36 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 | C11H11NO2 |
| Molecular Weight | 189.21 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Ketoprofen Standards
- Ketoprofen Impurity 38 (CAS 64379-72-2)
- Ketoprofen Impurity 44 (CAS 131019-17-5)
- Ketoprofen Impurity 63 (CAS 146257-39-8)
- Ketoprofen Impurity 45 (CAS 1272414-15-9)
- Ketoprofen Impurity 22 (CAS 42872-29-7)
- Ketoprofen Impurity 43 (CAS 34040-63-6)
- Ketoprofen EP Impurity C (CAS 68432-95-1)
- Ketoprofen Impurity 46 (CAS 713-36-0)
Recommended Standards
- Pregabalin Impurity 25 (CAS CATO-C4X-131225)
- Perindopril Impurity 105 (CAS 760127-31-9)
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- Isavuconazole Impurity 237 (CAS 60695-12-7)
- Epalrestat Impurity 51 (CAS CATO-C4X-223651)
- Nintedanib Impurity 23 (CAS CATO-C4X-181423)
- Oseltamivir Impurity 152 (CAS 651324-04-8)
- Bazedoxifene Bis-β-D-Glucuronide (CAS 328933-67-1)
- Methyl 3-((4-fluorophenyl)sulfonamido)propanoate (CAS 208121-68-0)
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- 2-(4-Methoxyphenyl)acetaldehyde (CAS 5703-26-4)
- (Pro3)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 299898-52-5)
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