芜地溴铵杂质18 CAS 2253743-34-7
| CAS No. | 2253743-34-7 |
| Molecular Formula | C26H27NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 芜地溴铵杂质18 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.
CATO supplies 芜地溴铵杂质18 (CAS 2253743-34-7), a pharmacopoeial impurity reference standard (molecular formula C26H27NOHCl, MW 405.97 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, 芜地溴铵杂质18 (C26H27NOHCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 405.97 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C26H27NO HCl |
| Molecular Weight | 405.97 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- Palbociclib Impurity 93 HCl (CAS CATO-C4X-1125203)
- Relugolix Impurity 86 (CAS CATO-C4X-242986)
- Ozenoxacin Impurity 74 (CAS CATO-C4X-279674)
- tert-Butyl 3-(4-bromo-1H-pyrazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate (CAS 1224194-51-7)
- 4,4-Dibromo-2,6-di-tert-butylcyclohexa-2,5-dienone (CAS 1144-36-1)
- Methyl 2-(3-hydroxypropyl)oxazole-4-carboxylate (CAS 1355026-81-1)
- (Z)-N'-((1-(4-chlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carbonyl)oxy)picolinimidamide (CAS 860649-92-9)
- Ethyl 4-hydroxy-5-oxo-2,5-dihydro-1H-pyrrole-3-carboxylate hydrate (CAS 175278-57-6)
- 2-Methyl-4-(tetrahydro-pyran-4-yl)-phenylamine (CAS 1086392-01-9)
- D-Gln24-Tirzepatide (CAS CATO-CPTD788910)
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