Ixabepilone Impurity 3 CAS 219989-85-2
| CAS No. | 219989-85-2 |
| Molecular Formula | C26H40N2O5S |
| Molecular Weight | 492.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Ixabepilone Impurity 3 (CAS 219989-85-2) is a certified pharmaceutical impurity reference standard with the molecular formula C26H40N2O5S and a molecular weight of 492.67 g/mol.
The molecular framework of Ixabepilone Impurity 3 (C26H40N2O5S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. 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 manufactures Ixabepilone Impurity 3 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 | C26H40N2O5S |
| Molecular Weight | 492.67 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ixabepilone Standards
Recommended Standards
- N-{3-[(2,5,6-trichloropyrimidin-4-yl)amino]phenyl}-N'-[4-(trifluoromethoxy)phenyl]urea (CAS 244278-43-1)
- Lurasidone Impurity N1 (CAS 1318074-20-2)
- 6-tert-Butyl-2-{[4-(4-fluorophenyl)-4-oxobutyl]sulfanyl}-4-(thiophen-2-yl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 939888-64-9)
- Lurasidone Impurity 51 (CAS 1318074-22-4)
- Metoprolol impurity 45 (CAS CATO-C4X-136745)
- Bendamustine Impurity 40 (CAS CATO-C4X-127140)
- Relugolix Impurity 32 (CAS CATO-C4X-242932)
- 1-(4-Bromo-3-trifluoromethylphenyl)piperidin-2-one (CAS 1257664-90-6)
- Tenapanor Impurity 5 (CAS CATO-C4X-32335)
- 3-(2-(2-Chlorophenyl)thiazol-4-yl)propanoic acid hydrochloride (CAS 1332530-24-1)
- (1,4,5,7-Tetrahydropyrano[3,4-c]pyrazol-4-yl)methanol (CAS 1422344-45-3)
- Ethyl 4-chloro-6,7-dimethoxyquinoline-3-carboxylate (CAS 26893-14-1)
- Fumaric acid xpotassium salt (CAS 7704-72-5)
- Tau Peptide (275-305) (Repeat 2 Domain) trifluoroacetate salt (CAS 330456-25-2)
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