Pelubiprofen Impurity 1 CAS CATO-C4X-21271
| CAS No. | CATO-C4X-21271 |
| Molecular Formula | C26H26O5 |
| Molecular Weight | 418.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pelubiprofen Impurity 1 (CAS CATO-C4X-21271), a pharmacopoeial impurity reference standard (molecular formula C26H26O5, MW 418.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Pelubiprofen Impurity 1 (C26H26O5) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 418.48 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C26H26O5 |
| Molecular Weight | 418.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Pelubiprofen Standards
Recommended Standards
- Baloxavir Impurity 6 (CAS CATO-C4X-21086)
- Pemafibrate Impurity 82 (CAS CATO-C4X-290382)
- Remdesivir Impurity 4 (CAS 55094-52-5)
- Pemafibrate Impurity 83 (CAS CATO-C4X-290383)
- Bendamustine Impurity 6 (CAS CATO-C4X-12716)
- Olopatadine Impurity 29 (CAS 156-38-7)
- Sorafenib Impurity 60 (CAS CATO-C4X-112460)
- 6-Methyl-4-phenyl-2-(pyrrolidin-1-yl)nicotinonitrile (CAS 61006-41-5)
- 1-Isopentylpiperidin-4-amine hydrochloride (CAS 1355247-69-6)
- tert-Butyl (R)-3-phenylpiperazine-1-carboxylate (CAS 1240584-34-2)
- 4-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-2-one (CAS 16442-58-3)
- 4-Amino-5-(2-((tert-butoxycarbonyl)amino)ethyl)nicotinic acid (CAS 1393574-46-3)
- 3-(Diphenylphosphoryl)cyclohexanone (CAS 89358-47-4)
- [3,5 Diiodo-Tyr7] Peptide T (CAS 128551-40-6)
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