Posaconazole Impurity 16(S,R,S,S) CAS 213381-02-3
| CAS No. | 213381-02-3 |
| Molecular Formula | C37H42F2N8O4 |
| Molecular Weight | 700.78 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Posaconazole Impurity 16(S,R,S,S) 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.
Posaconazole Impurity 16(S,R,S,S) (CAS 213381-02-3) is a certified pharmaceutical impurity reference standard with the molecular formula C37H42F2N8O4 and a molecular weight of 700.78 g/mol.
The molecular framework of Posaconazole Impurity 16(S,R,S,S) (C37H42F2N8O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C37H42F2N8O4 |
| Molecular Weight | 700.78 g/mol |
| Purity | >95% |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 8 |
Related Posaconazole Standards
- Posaconazole (CAS 171228-49-2)
- Posaconazole Impurity 12(S,S,R,R) (CAS 2243785-97-7)
- Posaconazole Impurity 13(R,R,R,R) (CAS 170985-61-2)
- Posaconazole Impurity 14(S,R,R,R) (CAS 213381-05-6)
- Posaconazole Impurity 15(S,S,S,S) (CAS 1246391-73-0)
- Posaconazole Impurity 157 (CAS CATO-C4X-1208157)
- Posaconazole Impurity 17(R,R,R,S) (CAS 171228-51-6)
- Posaconazole Impurity 176 (CAS CATO-C4X-1208176)
Recommended Standards
- Posaconazole Impurity 18(R,S,S,R) (CAS 213381-06-7)
- Posaconazole Impurity 19(S,S,R,S) (CAS 2243785-99-9)
- Posaconazole Impurity 20(R,S,R,S) (CAS 1229428-91-4)
- Posaconazole Impurity 21(R,R,S,R) (CAS 171228-50-5)
- Moxidectin EP Impurity G (CAS CATO-C4X-227514)
- Finasteride Impurity 23 (CAS CATO-C4X-164523)
- Dapoxetine Impurity 40 (CAS CATO-C4X-143940)
- 2-Isopropoxy-5-methylbenzenesulfonamide (CAS 1094691-36-7)
- trans-Bis(tricyclohexylphosphine)(2-methylphenyl)nickel(II) chloride (CAS 123839-28-1)
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- 3-(R)-1-Piperidin-2-ylmethyl-3H-benzo[d][1,2,3]triazin-4-onehydrochloride (CAS 1229622-68-7)
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- H-Cys(butyl)-OH (CAS 4134-56-9)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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