Anagrelide Impurity 43 CAS CATO-C4X-224043
| CAS No. | CATO-C4X-224043 |
| Molecular Formula | C11H13Cl2N3O3 |
| Molecular Weight | 306.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Anagrelide Impurity 43 (CAS CATO-C4X-224043), a pharmacopoeial impurity reference standard (molecular formula C11H13Cl2N3O3, MW 306.15 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Anagrelide Impurity 43 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 306.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C11H13Cl2N3O3 |
| Molecular Weight | 306.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Anagrelide Standards
- Anagrelide Impurity 26 (CAS 742010-46-4)
- Anagrelide Impurity 40 (CAS 2187431-31-6)
- Anagrelide Impurity 46 (CAS CATO-C4X-224046)
- Anagrelide 5-Acetoxy Impurity (CAS 1076198-71-4)
- Anagrelide impurity 25 (CAS 1092352-99-2)
- Anagrelide Impurity 32 (CAS 70380-52-8)
- Anagrelide USP Related Compound A (CAS 70406-92-7)
- Anagrelide Impurity 42 (CAS CATO-C4X-224042)
Recommended Standards
- Minodronic Impurity 25 (CAS CATO-C4X-124125)
- 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluoren-9-one (CAS 1021306-45-5)
- Tedizolid Impurity 44 (CAS 92159-87-0)
- Methyl 2-methoxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 1052647-21-8)
- Ledipasvir Impurity 16 (CAS CATO-C4X-331316)
- Afatinib Impurity 3 (CAS 945553-91-3)
- Erythromycin Impurity 49 (CAS 229318-98-3)
- 1-(6-(3,4-Dihydroquinolin-1(2H)-yl)-4-methylpyridin-3-yl)propan-1-ol (CAS 1355234-21-7)
- 1-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-((tert-butoxycarbonyl)amino)cyclohexane-1-carboxylic acid (CAS 914358-27-3)
- 2-(3-(Benzyloxy)cyclobutyl)acetonitrile (CAS 1622903-16-5)
- 4-Ethynylpicolinic acid (CAS 1256825-09-8)
- Methyl (E)-3-(3-bromo-4-methoxyphenyl)acrylate (CAS 888738-40-7)
- 10Alpha-hydroxy-exo-THC (CAS 56986-42-6)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com