Pitavastatin Impurity 56 CAS CATO-C4X-103756
| CAS No. | CATO-C4X-103756 |
| Molecular Formula | C37H31NP |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Pitavastatin Impurity 56 (CAS CATO-C4X-103756), a pharmacopoeial impurity reference standard (molecular formula C37H31NPBr, MW 600.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Pitavastatin Impurity 56 (C37H31NPBr) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, organophosphorus functionality, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 22.5, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 600.54 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.
Physical & Chemical Properties
| Molecular Formula | C37H31NP Br |
| Molecular Weight | 600.54 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 22.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Pitavastatin Standards
- Pitavastatin Impurity 92 (CAS 1159588-21-2)
- Pitavastatin Impurity 112 (CAS 1187966-91-1)
- Pitavastatin Impurity 90 (CAS 1187966-91-1（free base）)
- Pitavastatin Impurity 51 (CAS 1187966-93-3)
- Pitavastatin Impurity 55 (CAS 1187966-94-4)
- Pitavastatin Impurity 54 (CAS 1187966-95-5)
- Pitavastatin Impurity 40 (CAS 121659-86-7)
- Pitavastatin Impurity 96 (CAS 121660-11-5)
Recommended Standards
- Trifluridine Impurity 1 (CAS 80029-06-7)
- Suzetrigine Impurity 29 (CAS CATO-C4X-336929)
- Glycyrrhizic Acid Impurity 22 (CAS CATO-C4X-253722)
- 4-Bromo-2-(isopropylamino)benzonitrile (CAS 954226-99-4)
- (S)-4-Aminopentan-1-ol (CAS 1630497-31-2)
- Methyl 5-(difluoromethyl)-1-ethyl-1H-pyrazole-4-carboxylate (CAS 1443287-95-3)
- 4-Bromo-2-chloro-6-(difluoromethyl)nicotinaldehyde (CAS 1805034-16-5)
- tert-Butyl N-{3-azabicyclo[3.3.1]nonan-9-yl}carbamate (CAS 198210-96-7)
- 1-(2-Phenyl-1-tosyl-1H-indol-3-yl)ethan-1-one (CAS 62367-67-3)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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