Phentolamine Impurity 24 CAS CATO-C4X-224724
| CAS No. | CATO-C4X-224724 |
| Molecular Formula | C14H15NO3S |
| Molecular Weight | 277.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Phentolamine Impurity 24 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
As a process- or degradation-related impurity, Phentolamine Impurity 24 (CAS CATO-C4X-224724, C14H15NO3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Phentolamine Impurity 24 (C14H15NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 277.34 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C14H15NO3S |
| Molecular Weight | 277.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Phentolamine Standards
- Phentolamine (CAS 50-60-2)
- Phentolamine Impurity 19 (CAS CATO-C4X-224719)
- Phentolamine Impurity 16 (CAS CATO-C4X-224716)
- Phentolamine Impurity 21 (CAS CATO-C4X-224721)
- Phentolamine Impurity 8 (CAS 2767988-83-8)
- Phentolamine Impurity 26 (CAS CATO-C4X-224726)
- Phentolamine Impurity 27 (CAS CATO-C4X-224727)
- Phentolamine Mesilate Impurity 4 (CAS CATO-C4X-22474)
Recommended Standards
- Fluvastatin Impurity 20 (CAS 1025064-18-9)
- Belinostat Impurity 3 (CAS CATO-C4X-34903)
- Fudosteine impurity 51 (CAS CATO-C4X-144751)
- 1242907-01-2 1-[5-(4-Methylpiperazin-1-yl)-1,3,4-thiadiazol-2-yl]-1H-pyrrole-2-carbaldehyde MFCD15732311 (CAS 1242907-01-2)
- Atorvastatin Impurity N1 (CAS 148127-12-2)
- Cefathiamidine Impurity 10 (CAS CATO-C4X-133710)
- Torasemide Impurity 16 (CAS CATO-C4X-183616)
- 5-Amino-1-(2-methoxyethyl)-1H-imidazole-4-carbonitrile (CAS 87460-55-7)
- 5-Amino-2-phenyl-1,3-thiazole-4-carboxylic acid (CAS 923010-77-9)
- Estazolam Impurity 10 (CAS 112393-62-1)
- 2-(2-Methoxyphenyl)quinoline (CAS 72195-25-6)
- Tert-butyl 3-(((4-aminobenzyl)amino)methyl)piperidine-1-carboxylate (CAS 1189107-00-3)
- 8-Amino-2-methyl-3,4-dihydro-2λ4-benzo[c][1,2]thiazine 2-oxide (CAS 1621962-38-6)
- 302798-54-5 (Leu31,Pro34)-Neuropeptide Y (13-36) (human, rat) MFCD00672463 (CAS 302798-54-5)
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