Flunarizine impurity 38 CAS CATO-C4X-135738
| CAS No. | CATO-C4X-135738 |
| Molecular Formula | C43H44F4N4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Flunarizine impurity 38 (CAS CATO-C4X-135738, C43H44F4N4HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Flunarizine impurity 38 (C43H44F4N4HCl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 729.30 g/mol, it falls into the high-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.
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.
CATO manufactures Flunarizine impurity 38 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 | C43H44F4N4 4*HCl |
| Molecular Weight | 729.30 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
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
- Relugolix Impurity 23 (CAS CATO-C4X-2429123)
- Melitracen Impurity 5 (CAS 111-18-2)
- Brexpiprazole Impurity 134 (CAS CATO-C4X-1131134)
- 3-(4-((4-Chlorophenyl)sulfonamido)phenoxy)thiophene-2-carboxylic acid (CAS 882747-65-1)
- 4-Iodo-1-[(4-methoxyphenyl)methyl]-3,5-dimethyl-1H-pyrazole (CAS 374756-59-9)
- trans-3-Aminocyclobutanecarboxylic acid ethyl ester (CAS 957793-97-4)
- 291824BBS4 7783-46-2 Lead fluoride Lead(+2) fluoride Lead difluoride Lead fluoride (PbF2) Lead(II) fluoride EINECS 231-998-8 HSDB 6288 Plomb fluorure [French] Plumbous fluoride Plomb fluorure UNII-291824BBS4 (CAS 7783-46-2)
- 4-amino-3-ethoxybenzamide (CAS 917909-47-8)
- 2-(Ethyl(m-tolyl)amino)ethyl acetate (CAS 28462-19-3)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com