Allisartan Isoproxil Impurity 5 CAS CATO-C4X-32175
| CAS No. | CATO-C4X-32175 |
| Molecular Formula | C28H27ClN6O8 |
| Molecular Weight | 611.00 g/mol |
| 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 Allisartan Isoproxil Impurity 5 (CAS CATO-C4X-32175), a pharmacopoeial impurity reference standard (molecular formula C28H27ClN6O8, MW 611.00 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Allisartan Isoproxil Impurity 5 (C28H27ClN6O8) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C28H27ClN6O8 |
| Molecular Weight | 611.00 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Allisartan Standards
- Allisartan Isoproxil Impurity 4 (CAS CATO-C4X-32174)
- Allisartan Isoproxil Impurity 15 (CAS 905456-95-3)
- Allisartan Isoproxil Impurity 16 (CAS 439904-79-7)
- Allisartan Isoproxil Impurity N1 (CAS 120568-18-5)
- Allisartan Isoproxil Impurity 9 (CAS CATO-C4X-32179)
- Allisartan Isoproxil (CAS 947331-05-7)
- Allisartan Isoproxil Impurity 28 (CAS CATO-C4X-321728)
- Allisartan Isoproxil Impurity 21 (CAS CATO-C4X-321721)
Recommended Standards
- Losartan Impurity 27 (CAS CATO-C4X-168327)
- BQ-123 (CAS 136553-81-6)
- 2,2'-(2,5-Bis((2-ethylhexyl)oxy)-1,4-phenylene)dithieno[3,2-b]thiophene (CAS 1914976-66-1)
- 5,5'''-Didecyl-2,2':5',2'':5'',2'''-quaterthiophene (CAS 514188-77-3)
- Cefoxitin Impurity 32 (CAS 4461-29-4)
- Parecoxib Impurity 35 (CAS 1373038-63-1)
- Pioglitazone Aldehyde Impurity (CAS 114393-97-4)
- N-Formyl Varenicline (CAS 796865-82-2)
- tert-Butyl 4-(4-formyl-1H-1,2,3-triazol-1-yl)piperidine-1-carboxylate (CAS 915370-15-9)
- 1-(4-Chlorophenyl)-3-(4-ethyl-5-((3-(trifluoromethyl)benzyl)thio)-4H-1,2,4-triazol-3-yl)pyridazin-4(1H)-one (CAS 478077-63-3)
- Ethyl 5-(3-chlorophenyl)oxazole-2-carboxylate (CAS 400715-69-7)
- 4-(2,4-dimethylanilino)-1,1,1-trifluorobut-3-en-2-one (CAS 215654-87-8)
- 5,6-Dibromoacenaphthylene-1,2-dione (CAS 43017-99-8)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
Why CATO?
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