Calcitonin Impurity 19 CAS CATO-C4X-221819
| CAS No. | CATO-C4X-221819 |
| Molecular Formula | C13H20O4S |
| Molecular Weight | 272.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Calcitonin Impurity 19 (CAS CATO-C4X-221819, C13H20O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Calcitonin Impurity 19 (C13H20O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Calcitonin Impurity 19 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 | C13H20O4S |
| Molecular Weight | 272.36 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 1 |
Related Calcitonin Standards
- Calcitonin impurity 22 (CAS 1430820-46-4)
- Calcitonin Impurity 18 (CAS CATO-C4X-221818)
- Calcitonin Impurity 15 (CAS CATO-C4X-221815)
- Calcitonin Impurity 17 (CAS CATO-C4X-221817)
- 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)
Recommended Standards
- Sotalol EP Impurity D (CAS CATO-C4X-20924)
- Nefopam N-Oxide-d3 (CAS 1346603-50-6)
- Biotin impurity 35 (CAS 1374019-64-3)
- Sotalol (CAS 3930-20-9)
- Perampanel Impurity 39 (CAS CATO-C4X-243039)
- Rosuvastatin Impurity 235 (CAS CATO-C4X-1169235)
- Baricitinib Impurity 135 (CAS 2101302-36-5)
- 4-Phenoxyphenylglyoxal hydrate (CAS 1172561-37-3)
- 2-(2-Methoxy-4-methylphenoxy)-5-nitropyridine (CAS 1089602-23-2)
- 4-Cyclopropoxyisophthalaldehyde (CAS 1243328-93-9)
- 3,6,6-Trimethyl-1-(o-tolyl)-1,5,6,7-tetrahydro-4H-indazol-4-one (CAS 442643-10-9)
- Topiroxostat impurity 75 (CAS CATO-C4X-105575)
- 2-Amino-6-chloro-N-(2-methoxyethyl)-4-oxo-4H-chromene-3-carboxamide (CAS 883279-34-3)
- Peptide 436 (CAS CATO-CPTD788436)
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