Diacerein EP Impurity G CAS 64951-96-8
| CAS No. | 64951-96-8 |
| Molecular Formula | C37H38O17 |
| Molecular Weight | 754.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Diacerein EP Impurity G 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 Diacerein EP Impurity G (CAS 64951-96-8), a pharmacopoeial impurity reference standard (molecular formula C37H38O17, MW 754.69 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C37H38O17, Diacerein EP Impurity G contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 754.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C37H38O17 |
| Molecular Weight | 754.69 g/mol |
| Purity | >95% |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Diacerein Standards
- Diacerein impurity 26 (CAS CATO-C4X-108126)
- Diacerein EP Impurity F (CAS 13928-72-8 (racemic))
- Diacerein Impurity 23 (CAS CATO-C4X-108123)
- Diacerein EP Impurity H (CAS 25395-11-3)
- Diacerein Impurity 8 (CAS 6030-60-0)
- Diacerein Impurity 24 (CAS CATO-C4X-108124)
- Diacerein-d6 (CAS CATO-C4X-108119)
- Diacerein-13C6 (CAS 1391052-74-6)
Recommended Standards
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- Ligupurpuroside D (CAS 1194056-35-3)
- Nafamostat impurity 115 (CAS CATO-C4X-1332115)
- Metoprolol Impurity 2 (Mixture of Z and E Isomers) (CAS 82961-02-2)
- Fluocortolone Impurity 6 (CAS 36130-02-6)
- 4-(2-Methoxybenzyl)-6-(p-tolyl)pyridazin-3(2H)-one (CAS 121137-73-3)
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- 3-Chloro-4,5-difluoronitrobenzene (CAS 53780-44-2)
- 2-Amino-3,3-dimethylbutan-1-ol (CAS 3907-02-6)
- 6-((3,5-Dimethoxyphenyl)amino)-2,3-dihydroindolizin-5(1H)-one (CAS 612065-08-4)
- Eugenol-glucuronide (CAS 95480-61-8)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
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