Posaconazole Impurity 121 CAS 212632-01-4
| CAS No. | 212632-01-4 |
| Molecular Formula | C23H29N5O2 |
| Molecular Weight | 407.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Posaconazole Impurity 121 (C23H29N5O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 407.51 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Posaconazole Impurity 121 (CAS 212632-01-4), a pharmacopoeial impurity reference standard (molecular formula C23H29N5O2, MW 407.51 g/mol) used for the identification and quantification of trace impurities in APIs.
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 | C23H29N5O2 |
| Molecular Weight | 407.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Nitrogen Atoms | 5 |
Related Posaconazole Standards
- Posaconazole Impurity 204 (CAS CATO-C4X-1208204)
- Posaconazole Impurity 129 (CAS 74853-06-8)
- Posaconazole Impurity 203 (CAS CATO-C4X-1208203)
- Posaconazole Impurity 257 (CAS CATO-C4X-1208257)
- Posaconazole impurity 217 (CAS CATO-C4X-1208217)
- Posaconazole Impurity 44 (CAS 357189-97-0)
- Posaconazole impurity 229 (CAS CATO-C4X-1208229)
- Posaconazole Impurity 253 (CAS CATO-C4X-1208254)
Recommended Standards
- N-[(Thiophen-2-yl)methyl]-2-{4-[4-(thiophen-2-yl)pyrimidin-2-yl]phenoxy}acetamide (CAS 477888-55-4)
- Itraconazole Methoxy ButyItriazolone Impurity (CAS CATO-C4X-149710)
- N-(4-Methyl-2-(morpholinosulfonyl)phenyl)-2-(methylthio)nicotinamide (CAS 380570-15-0)
- Itraconazole EP Impurity A (CAS 252964-68-4)
- Mirogabalin Impurity 19 (CAS CATO-C4X-292419)
- Betamethasone Impurity 117 (CAS CATO-C4X-1437117)
- Iohexol EP Impurity F HCl (2,4-diiodo Isomer) (CAS CATO-CP107405)
- Mexiletine EP Impurity D(Enantiomer Mixture) (CAS 26583-71-1)
- Dodecylbenzene (CAS 123-01-3)
- 4,7-Dichloro-2-(pyridin-2-yl)quinazoline (CAS 1269703-91-4)
- 4-Methoxy-N-(2-methoxybenzyl)aniline (CAS 862604-21-5)
- 1-((1R,2R)-2-methylcyclobutyl)ethan-1-one (CAS 39257-07-3)
- 5-(Carboxymethoxy)-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 679436-55-6)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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