Calcitonin impurity 22 CAS 1430820-46-4
| CAS No. | 1430820-46-4 |
| Molecular Formula | C13H18O4S |
| Molecular Weight | 270.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Calcitonin impurity 22 (CAS 1430820-46-4), a pharmacopoeial impurity reference standard (molecular formula C13H18O4S, MW 270.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Calcitonin impurity 22 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Calcitonin impurity 22 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 | C13H18O4S |
| Molecular Weight | 270.34 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Sulfur Atoms | 1 |
Related Calcitonin Standards
- Calcitonin Impurity 19 (CAS CATO-C4X-221819)
- Calcitonin Impurity 18 (CAS CATO-C4X-221818)
- Calcitonin Impurity 17 (CAS CATO-C4X-221817)
- Calcitonin Impurity 15 (CAS CATO-C4X-221815)
- Calcitonin Impurity 16 (CAS CATO-C4X-221816)
- Calcitonin Impurity 20 (CAS CATO-C4X-221820)
- Calcitonin Impurity 3 (CAS 22842-50-8)
- Calcitonin Impurity 6 (CAS 3680-13-5)
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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