Flunarizine impurity 45 CAS 3141-41-1
| CAS No. | 3141-41-1 |
| Molecular Formula | C8H8Cl2 |
| Molecular Weight | 175.06 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Flunarizine impurity 45 is closely related to chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Flunarizine impurity 45 (CAS 3141-41-1, C8H8Cl2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Flunarizine impurity 45 (C8H8Cl2) contains chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 175.06 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Flunarizine impurity 45 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 | C8H8Cl2 |
| Molecular Weight | 175.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Flunarizine Standards
- Flunarizine impurity 47 (CAS 2602342-57-2)
- Flunarizine Impurity 19 (CAS 18903-04-3)
- Flunarizine Impurity 29 (CAS 39199-93-4)
- Flunarizine impurity 47 (CAS 148728-47-6)
- Flunarizine Impurity 25 (CAS 365-22-0)
- Flunarizine Impurity 59 (CAS 114312-65-1)
- Flunarizine Impurity 9 (CAS 87179-40-6)
- Flunarizine Impurity 18 (CAS 6416-39-3)
Recommended Standards
- 4-Chloro-2-(chloromethyl)-1-methyl-benzene (CAS 34060-72-5)
- Imrecoxib Impurity 78 (CAS 23063-36-7)
- 3,4-Dichloroethylbenzene (CAS 6623-59-2)
- alpha,alpha＇-Dichloro-o-xylene (CAS 612-12-4)
- Ursodeoxycholic Acid impurity 95 (CAS CATO-C4X-142295)
- Enzalutamide Impurity 49 (CAS CATO-C4X-101649)
- Methimazole impurity 7 (CAS CATO-C4X-20607)
- 2-(2-((Methoxycarbonyl)amino)thiazol-4-yl)acetic acid (CAS 202408-26-2)
- 3-(Methyl carboxy)-4-(pyridin-3-yl)but-3-enoic acid (CAS 1415565-98-8)
- (1S,2S,5R)-3-Azabicyclo[3.1.0]hexan-2-ylmethanol (CAS 1227418-15-6)
- 1-(2,6-Dichlorobenzyl)-N,N-dimethyl-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 338754-52-2)
- 6-Ethylbenzo[d]oxazol-2(3H)-one (CAS 93771-18-7)
- Benzyl ((1s,4s)-4-(hydroxymethyl)cyclohexyl)carbamate (CAS 1256276-45-5)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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