Posaconazole Impurity 21 CAS 175712-02-4
| CAS No. | 175712-02-4 |
| Molecular Formula | C20H18ClF2N3O4S |
| Molecular Weight | 469.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Posaconazole Impurity 21 (CAS 175712-02-4), a certified reference material (molecular formula C20H18ClF2N3O4S, MW 469.89 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Posaconazole Impurity 21 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 469.89 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Posaconazole Impurity 21 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 | C20H18ClF2N3O4S |
| Molecular Weight | 469.89 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Posaconazole Standards
- Posaconazole Impurity 113 (CAS 2243786-07-2)
- Posaconazole Impurity 162 (CAS CATO-C4X-1208162)
- Posaconazole Impurity 200 (CAS CATO-C4X-1208200)
- Posaconazole Impurity 263 (CAS 454479-37-9)
- Posaconazole Impurity 196 (CAS CATO-C4X-1208196)
- Posaconazole Impurity 198 (CAS CATO-C4X-1208198)
- Posaconazole Impurity 31 (CAS CATO-C4X-120831)
- Posaconazole Impurity 10 (CAS 149809-43-8)
Recommended Standards
- Halometasone Impurity 8 (CAS 28895-70-7)
- Methyl 6-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-2-(methylsulfonamido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate (CAS 321430-47-1)
- N-(2-((4-chlorophenyl)sulfonyl)ethyl)-2-((3-(trifluoromethyl)phenyl)sulfonyl)acetamide (CAS 337923-11-2)
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- (S)-2-Amino-N-((R)-1-benzylpyrrolidin-3-yl)-N-isopropylpropanamide (CAS 1401665-98-2)
- 4-Methyl-2-(methylsulfanyl)benzoic acid (CAS 24852-73-1)
- (R)-3-Bromopropane-1,2-diol (CAS 14437-88-8)
- Finerenone Impurity 21 (CAS 1017082-75-5)
- 4-Bromo-2-(1H-imidazol-2-yl)phenol (CAS 289506-17-8)
- 5-Bromo-3-phenylbenzo[d]isoxazole (CAS 402914-15-2)
- 2-(4-Fluoro-2-methylphenyl)acetaldehyde (CAS 111991-26-5)
- Chlorpromazine Related Compound 3 (CAS 20650-07-1)
- 3-amino-3-(3,4-dichloro-phenyl)-propionic acid (CAS 117391-57-8)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
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