Flunarizine Impurity 24 CAS 163596-56-3
| CAS No. | 163596-56-3 |
| Molecular Formula | C13H18N2 |
| Molecular Weight | N/A |
| 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.
Flunarizine Impurity 24 (CAS 163596-56-3) is a certified pharmaceutical impurity reference standard with the molecular formula C13H18N2HCl and a molecular weight of 238.76 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, Flunarizine Impurity 24 is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 238.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Flunarizine Impurity 24 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 | C13H18N2 2*HCl |
| Molecular Weight | 238.76 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Flunarizine Standards
- Flunarizine impurity 43 (CAS 1133842-25-7)
- Flunarizine Impurity 59 (CAS 114312-65-1)
- Flunarizine impurity 57 (CAS 114374-24-2)
- Flunarizine Impurity N1 (CAS 123375-94-0)
- Flunarizine Impurity N1 HCl (CAS 123375-94-0(free base))
- Flunarizine impurity 46 (CAS 1368426-98-5(free base))
- Flunarizine Impurity 32 (CAS 141528-78-1)
- Flunarizine Impurity 26 (CAS 144917-53-3)
Recommended Standards
- Ticagrelor impurity 99 (CAS CATO-C4X-109399)
- Pemetrexed impurity 47 (CAS CATO-C4X-172647)
- Clonazepam impurity 16 (CAS CATO-C4X-140316)
- (5-Bromopentyl)(ethyl)sulfane (CAS 115412-79-8)
- 6,6',7,7'-tetrahydro-5H,5'H-2,2'-bi[1,3]dithiolo[4,5-b][1,4]dithiepinylidene (CAS 66946-49-4)
- (-)-Humulene epoxide II (CAS 19888-34-7)
- 1-[(4-bromophenyl)sulfanyl]-3-(4-methylbenzenesulfonyl)propan-2-one 3H-479S 400081-07-4 (CAS 400081-07-4)
- 3-(5-(4-Methoxyphenyl)-2H-tetrazol-2-yl)propanoic acid (CAS 27604-50-8)
- 2-(Aminomethyl)benzaldehyde (CAS 771573-43-4)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
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