Alverine Impurity 21 CAS CATO-C4X-153921
| CAS No. | CATO-C4X-153921 |
| Molecular Formula | C20H27NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Alverine Impurity 21 (C20H27NOHCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Alverine Impurity 21 (CAS CATO-C4X-153921), a pharmacopoeial impurity reference standard (molecular formula C20H27NOHCl, MW 333.90 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C20H27NO HCl |
| Molecular Weight | 333.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 95% |
| Storage | Store at 2-8°C, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Alverine Standards
- Alverine EP Impurity A (CAS 104-52-9)
- Alverine Impurity 7 HCl (CAS 1199-99-1(free base))
- Alverine-D5 Citrate (CAS 1215327-00-6)
- Alverine EP Impurity B (CAS 122-97-4)
- Alverine EP Impurity C (CAS 13125-62-7)
- Alverine EP Impurity C HCl (CAS 13125-63-8)
- Alverine (CAS 150-59-4)
- Alverine EP Impurity D (CAS 2732347-30-5)
Recommended Standards
- Lansoprazole impurity 72 (CAS 2138848-89-0)
- Suzetrigine Impurity 33 (CAS CATO-C4X-336933)
- Desoximetasone Impurity 1 (CAS 2770242-92-5)
- 4-((4-Chlorobenzyl)thio)-6-phenyl-1,3,5-triazin-2(1H)-one (CAS 652154-77-3)
- N-(Tetrahydro-2-furanylmethyl)-2-pyrrolidinecarboxamide hydrochloride (CAS 1236254-72-0)
- (2-(4-(Trifluoromethyl)phenyl)-1H-imidazol-4-yl)methanol (CAS 466664-93-7)
- 1-(5-Chloro-2-fluorobenzyl)pyrrolidin-3-amine (CAS 1599662-60-8)
- 2-(2-Bromoethoxy)-1,3,5-trimethylbenzene (CAS 94839-66-4)
- 1-(Phenylamino)-1H-imidazole-4-carboxylic acid (CAS 549888-05-3)
- Mast Cell Degranulating Peptide HR-1 (CAS 80533-94-4)
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