Flunarizine impurity 51 CAS CATO-C4X-135751
| CAS No. | CATO-C4X-135751 |
| Molecular Formula | C30H26F4N2 |
| Molecular Weight | 490.53 g/mol |
| 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.
CATO supplies Flunarizine impurity 51 (CAS CATO-C4X-135751), a pharmacopoeial impurity reference standard (molecular formula C30H26F4N2, MW 490.53 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C30H26F4N2, Flunarizine impurity 51 contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 490.53 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Flunarizine impurity 51 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.
Physical & Chemical Properties
| Molecular Formula | C30H26F4N2 |
| Molecular Weight | 490.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Flunarizine Standards
- Flunarizine Impurity 58 (CAS CATO-C4X-135758)
- Flunarizine Impurity 14 (CAS CATO-C4X-135714)
- Flunarizine Impurity 15 (CAS CATO-C4X-135715)
- Flunarizine impurity 53 (CAS CATO-C4X-135753)
- Flunarizine Impurity 7 (CAS 87166-81-2)
- Flunarizine Impurity N1 (CAS 123375-94-0)
- Flunarizine impurity 34 (CAS CATO-C4X-135734)
- Flunarizine impurity 39 (CAS 19422-37-8)
Recommended Standards
- Apremilast Impurity 53 (CAS CATO-C4X-100953)
- Adenanthin A (CAS 111917-59-0)
- Apremilast Impurity 24 (CAS 2487573-01-1)
- Acetylexidonin (CAS 116368-90-2)
- Apremilast Impurity 23 (CAS 2077897-94-8)
- Tranexamic Acid EP Impurity A (CAS 93940-19-3)
- Efavirenz Impurity 7 (CAS 211563-41-6)
- 4-(Dimethylamino)nicotinic acid (CAS 83039-02-5)
- 2-(2,4-Dichlorophenyl)-5-oxotetrahydrofuran-3-carboxylic acid (CAS 1399684-52-6)
- Ethyl 2-(methylimino)-2,3-dihydrothiazole-4-carboxylate hydrobromide (CAS 1211499-08-9)
- 6-(9,10-Dimethoxy-5,11-dioxo-6a,11-dihydroisoindolo[2,1-a]quinazolin-6(5H)-yl)hexanoic acid (CAS 1630763-97-1)
- 2,3-Dicyclopropylpyridine (CAS 1355070-88-0)
- 3,5,6,8-Tetrahydroxy-7-(2-hydroxy-5-(2-hydroxyethyl)phenyl)-9,10-dioxo-9,10-dihydroanthracene-1,2-dicarboxylic acid (CAS 17249-00-2)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
Why CATO?
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