Ketoprofen Impurity 57 CAS CATO-C4X-147157
| CAS No. | CATO-C4X-147157 |
| Molecular Formula | C30H28O2 |
| Molecular Weight | 420.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ketoprofen Impurity 57 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.
CATO supplies Ketoprofen Impurity 57 (CAS CATO-C4X-147157), a pharmacopoeial impurity reference standard (molecular formula C30H28O2, MW 420.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, Ketoprofen Impurity 57 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 420.54 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.
Physical & Chemical Properties
| Molecular Formula | C30H28O2 |
| Molecular Weight | 420.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Ketoprofen Standards
- Ketoprofen Impurity 50 (CAS 157740-16-4)
- Ketoprofen Impurity 56 (CAS 157740-17-5)
- (R)-Ketoprofen β-D-glucuronide (CAS 140148-25-0)
- (S)-Ketoprofen β-D-glucuronide (CAS 140148-26-1)
- rac-Ketoprofen acyl-beta-D-glucuronide (mixture of isomers) (CAS 76690-94-3)
- Ketoprofen Impurity 66 (CAS CATO-C4X-147166)
- Ketoprofen 1,4-Sorbitol Ester (CAS CATO-C4X-147118)
- Ketoprofen Impurity 29 (CAS CATO-C4X-147129)
Recommended Standards
- Valsartan Impurity 41 (CAS CATO-C4X-105741)
- Indacaterol Impurity 11 (CAS CATO-C4X-150011)
- Pholcodine N-Oxide (CAS 433308-89-5)
- Indacaterol Impurity 20 (CAS 2250243-41-3)
- Mirogabalin Impurity 55 (CAS CATO-C4X-292455)
- 7-ADCA Impurity 1 (CAS 56487-68-4)
- Riluzole Impurity 25 (CAS 442665-84-1)
- 4-Nitrophenyl phosphate di(2-amino-2-ethyl-1,3-propanediol) salt (CAS 62796-28-5)
- 5-((3-Acetylphenoxy)methyl)furan-2-carbaldehyde (CAS 1399659-00-7)
- (4-Methoxy-3-nitrophenyl)methanethiol (CAS 908344-21-8)
- Methyl 2-(2,4-Dimethoxyphenyl)acetate (CAS 55954-25-1)
- 1-Butyl-4,6-diphenylpyridin-2(1H)-one (CAS 21916-52-9)
- 2-Amino-4,5-difluorobenzonitrile (CAS 219823-49-1)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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