Posaconazole Impurity 271 CAS 159276-57-0
| CAS No. | 159276-57-0 |
| Molecular Formula | C9H9BrF2O |
| Molecular Weight | 251.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Posaconazole Impurity 271.
Posaconazole Impurity 271 (CAS 159276-57-0) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9BrF2O and a molecular weight of 251.07 g/mol.
Based on its molecular formula C9H9BrF2O, Posaconazole Impurity 271 contains a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.07 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 manufactures Posaconazole Impurity 271 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 | C9H9BrF2O |
| Molecular Weight | 251.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | F/Br-containing |
Related Posaconazole Standards
- Posaconazole Impurity 86 (CAS CATO-C4X-1208186)
- Posaconazole Impurity 117 (CAS CATO-C4X-1208117)
- Posaconazole Impurity 125 (CAS CATO-C4X-1208125)
- Posaconazole Impurity 145 (CAS CATO-C4X-1208145)
- Posaconazole Impurity 45 (CAS CATO-C4X-141845)
- Posaconazole Impurity 270 (CAS 55743-71-0)
- Posaconazole Impurity 90 (CAS CATO-C4X-1208190)
- Posaconazole Impurity 91 (CAS CATO-C4X-1208191)
Recommended Standards
- 2-Bromoquinoline-4-carboxamide (CAS 101085-20-5)
- 2-BROMO-1,4-BENZENEDICARBOXYLIC ACID 2-BROMOBENZENE-1,4-DICARBOXYLIC ACID 2-Bromoterephthalic acid 586-35-6 AS03470 BROMOTEREPHTHALIC ACID LABOTEST-BB LT00454996 LABOTEST-BB LT03330774 TIMTEC-BB SBB012452 (CAS 586-35-6)
- (E)-3-(4-bromophenyl)-2-cyanoacrylamide (CAS 101085-21-6)
- Silver2-ethylhexanoate (CAS 26077-31-6)
- Diatrizoic Acid Impurity 1 (CAS 1383849-83-9)
- Avibactam impurity 113 (CAS 115134-37-7)
- Pitolisant impurity 5 (CAS CATO-C4X-25205)
- [Lys5,MeLeu9,Nle10]-Neurokinin A (4-10) Fragment (CAS 137565-28-7)
- 1-(5-Bromothiophen-3-yl)ethanol (CAS 1594872-82-8)
- 3-(Hex-5-en-1-yl)thiophene (CAS 160391-41-3)
- 4-(2,4-Difluorophenoxy)-2-(methylsulfanyl)thieno[3,2-d]pyrimidine (CAS 339018-90-5)
- N-[4-(1H-Imidazol-1-ylmethyl)phenyl]-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-6-sulfonamide (CAS 1214429-43-2)
- 4-((1h-Benzo[d]imidazol-2-yl)thio)cyclohexan-1-amine (CAS 1273959-75-3)
- Peptide 434 (CAS CATO-CPTD788434)
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