Anagrelide Impurity 22 CAS 20098-48-0
| CAS No. | 20098-48-0 |
| Molecular Formula | C6H2Cl3NO2 |
| Molecular Weight | 226.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Anagrelide Impurity 22.
Anagrelide Impurity 22 (CAS 20098-48-0) is a certified pharmaceutical impurity reference standard with the molecular formula C6H2Cl3NO2 and a molecular weight of 226.44 g/mol.
Based on its molecular formula C6H2Cl3NO2, Anagrelide Impurity 22 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 226.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Anagrelide Impurity 22 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H2Cl3NO2 |
| Molecular Weight | 226.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Anagrelide Standards
- Anagrelide Impurity 21 (CAS 17700-09-3)
- Anagrelide Impurity 1 (CAS 70380-49-3)
- Anagrelide Impurity 20 (CAS 2112-22-3)
- Anagrelide Impurity 26 (CAS 444904-63-6)
- Anagrelide Impurity 6 (CAS 349150-82-9)
- Anagrelide Impurity 13 (CAS CATO-C4X-224013)
- Anagrelide Impurity 9 (CAS 28165-60-8)
- Anagrelide Impurity 37 (CAS CATO-C4X-224037)
Recommended Standards
- 2,2,4,4,6,8,8-Heptamethylnonane (CAS 4390-04-9)
- 2,3,5-trichloropyridine-4-carboxylic acid 4-Carboxy-2,3,5-trichloropyridine 406676-18-4 (CAS 406676-18-4)
- 2,4,5-Trichloronitrobenzene (CAS 89-69-0)
- 3,5,6-trichloropyridine-2-carboxylic acid 40360-44-9 ACT10375 (CAS 40360-44-9)
- Meropenem Impurity 54 (CAS CATO-C4X-130954)
- Iobitridol Impurity 34 (CAS CATO-C4X-317834)
- Iobitridol Impurity 33 (CAS CATO-C4X-317833)
- 4-Amino-5-bromo-2-ethoxybenzoic acid (CAS 84923-73-9)
- 2-Bromo-4-(difluoromethyl)nicotinic acid (CAS 1804752-31-5)
- Methyl 2-(2-chloro-4-(6-methylpyridin-2-yl)phenyl)acetate (CAS 1648864-47-4)
- 3-Chloro-4-nitro-1H-indazole-6-carboxylic acid (CAS 885521-17-5)
- N-Allyl-4-methylbenzamide (CAS 88229-22-5)
- tert-Butyl 2-(thiophen-2-ylmethyl)piperazine-1-carboxylate (CAS 886779-39-1)
- Brain Injury Derived Neurotrophic Peptide (H-3914.0001) (CAS 148330-12-5)
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