LCZ-696 Impurity 72 calcium salt CAS CATO-C4X-169672
| CAS No. | CATO-C4X-169672 |
| Molecular Formula | 2*C23H26NO5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of LCZ-696 Impurity 72 calcium salt is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies LCZ-696 Impurity 72 calcium salt (CAS CATO-C4X-169672), a pharmacopoeial impurity reference standard (molecular formula C23H26NO5Ca, MW 436.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H26NO5Ca, LCZ-696 Impurity 72 calcium salt contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 436.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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.
Physical & Chemical Properties
| Molecular Formula | 2*C23H26NO5 Ca |
| Molecular Weight | 436.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Recommended Standards
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- 3-(2,5-Dimethylphenyl)-5-methylisoxazole-4-carboxylic acid (CAS 1480355-55-2)
- Acetyl-(D-Lys2,Sar3)-Melanotropin-Potentiating Factor (CAS 81483-91-2)
- Ethyl 5-hydroxyoxane-2-carboxylate (CAS 110407-58-4)
- 2,3,4,5-tetrahydro-1,5-benzoxazepin-4-one (CAS 704-48-3)
- Brexpiprazole Impurity 90 (CAS CATO-C4X-113190)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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