Diacerein Impurity 8 CAS 6030-60-0
| CAS No. | 6030-60-0 |
| Molecular Formula | C21H16O8 |
| Molecular Weight | 396.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Diacerein Impurity 8 is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Diacerein Impurity 8 (CAS 6030-60-0) is a certified pharmaceutical impurity reference standard with the molecular formula C21H16O8 and a molecular weight of 396.35 g/mol.
Based on its molecular formula C21H16O8, Diacerein Impurity 8 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 396.35 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).
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.
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 | C21H16O8 |
| Molecular Weight | 396.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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 |
| CAS Registry Year (est.) | 1958 |
Related Diacerein Standards
Recommended Standards
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- Furan-3-yl(thiophen-2-yl)methanol (CAS 136260-84-9)
- 2-Bromo-3-(chloromethyl)-5-methylpyridine (CAS 1227590-73-9)
- 3-Bromo-5-(piperazin-1-ylsulfonyl)pyridin-4-amine (CAS 1352517-41-9)
- Sildenafil Impurity 2 (CAS 332374-42-2)
- Stresscopin-Related Peptide (human) (CAS 348626-74-4)
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