Pitavastatin Impurity 43 CAS CATO-C4X-103743
| CAS No. | CATO-C4X-103743 |
| Molecular Formula | C19H15BrFN |
| Molecular Weight | 356.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 356.23 g/mol gives Pitavastatin Impurity 43 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Pitavastatin Impurity 43 (CAS CATO-C4X-103743), a pharmacopoeial impurity reference standard (molecular formula C19H15BrFN, MW 356.23 g/mol) used for the identification and quantification of trace impurities in APIs.
Pitavastatin Impurity 43 (C19H15BrFN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Pitavastatin Impurity 43 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 | C19H15BrFN |
| Molecular Weight | 356.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related Pitavastatin Standards
- Pitavastatin Impurity 21 (CAS 154057-56-4)
- Pitavastatin Impurity 42 (CAS CATO-C4X-103742)
- Pitavastatin Impurity 41 (CAS CATO-C4X-103741)
- Pitavastatin Impurity 18 (CAS 148516-11-4)
- Pitavastatin Impurity 78 (CAS CATO-C4X-103778)
- Pitavastatin Impurity 59 (CAS 148516-15-8)
- Pitavastatin Impurity 40 (CAS 121659-86-7)
- Pitavastatin Impurity 15 (CAS CATO-C4X-103715)
Recommended Standards
- 4-Bromo-1-[4-(1-pyrrolidinylsulfonyl)phenyl]-1H-pyrazole (CAS 1187385-91-6)
- 2-(2,4-Dichlorophenoxy)-1-(3-((prop-2-yn-1-yloxy)methyl)piperidin-1-yl)ethan-1-one (CAS 1251685-52-5)
- N-Benzyl 5-bromo-2-methoxybenzenesulfonamide (CAS 446308-82-3)
- 3-Bromo-5-(4-(isopropylsulfonyl)phenyl)pyrazin-2-amine (CAS 1349151-83-2)
- Tegoprazan Impurity 19 (CAS 2168520-25-8)
- Barloxavir impurity C718 (CAS 1370250-38-6)
- Alanyl Glutamine Impurity 51 (CAS CATO-C4X-197451)
- 6,7-Difluoro-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxylic acid (CAS 2320541-48-6)
- 3,4,5-Trichlorothiophene-2-sulfonyl chloride (CAS 24622-15-9)
- 2,6-Dichloro-4-fluorophenacyl bromide (CAS 1806276-74-3)
- Ethyl 1-(piperidin-3-yl)-1H-pyrazole-4-carboxylate (CAS 1427380-09-3)
- 2-Ethyl-4-Methyl-1-Pentanol (CAS 106-67-2)
- (2-Chloro-5-methylphenyl)methanamine (CAS 754917-70-9)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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