Ibuprofen Impurity 78 CAS 51146-56-6
| CAS No. | 51146-56-6 |
| Molecular Formula | C13H18O2 |
| Molecular Weight | 206.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Ibuprofen Impurity 78 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO supplies Ibuprofen Impurity 78 (CAS 51146-56-6), a pharmacopoeial impurity reference standard (molecular formula C13H18O2, MW 206.28 g/mol) used for the identification and quantification of trace impurities in APIs.
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 Ibuprofen Impurity 78 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 | C13H18O2 |
| Molecular Weight | 206.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Ibuprofen Standards
- (S)-Ibuprofen EP Impurity B (CAS 404354-76-3)
- Ibuprofen (CAS 15687-27-1)
- Ibuprofen EP Impurity A (CAS 66622-47-7)
- Ibuprofen Impurity 145 (CAS 69363-33-3)
- Ibuprofen EP Impurity A (CAS CATO-C4X-1082147)
- Ibuprofen EP Impurity O (CAS 64451-76-9)
- Ibuprofen Impurity 151 (CAS CATO-C4X-1082151)
- Ibuprofen EP Impurity B (CAS 3585-49-7)
Recommended Standards
- Ibuprofen EP Impurity F (CAS 65322-85-2)
- Ibuprofen Impurity 79 (CAS 51146-57-7)
- Ibuprofen Impurity 54 (CAS 158264-26-7)
- Dexmedetomidine Impurity 45 (CAS CATO-C4X-123045)
- Cefazolin EP Impurity C (CAS 56842-77-4)
- Tolterodine Impurity N3 HCl (CAS 124936-83-0)
- Dequalinium Chloride EP Impurity B chloride (CAS 171980-52-2)
- 4,5-Dichloropyrrolo[2,1-f][1,2,4]triazine (CAS 888720-61-4)
- N-Benzyl-4-(diphenylphosphoryl)benzamide (CAS 90304-92-0)
- 5-(((5-Methyl-1,3,4-oxadiazol-2-yl)methyl)thio)-1,3,4-thiadiazol-2-amine (CAS 878576-18-2)
- Methyltetrazine-DBCO (CAS 1802238-48-7)
- 2-((2-Methoxy-5-methylphenyl)amino)-N-(thiazol-2-yl)thiazole-4-carboxamide (CAS 1170052-22-8)
- Diallyldimethylammonium chloride (CAS 7398-69-8)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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