Azilsartan Impurity 61 CAS 856414-36-3
| CAS No. | 856414-36-3 |
| Molecular Formula | C9H6N4O5 |
| Molecular Weight | 250.17 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 Azilsartan Impurity 61 (CAS 856414-36-3), a pharmacopoeial impurity reference standard (molecular formula C9H6N4O5, MW 250.17 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Azilsartan Impurity 61 (C9H6N4O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 250.17 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H6N4O5 |
| Molecular Weight | 250.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
Related Azilsartan Standards
- Azilsartan Impurity 114 (CAS CATO-C4X-1096114)
- Azilsartan Impurity 90 (CAS 73833-13-3)
- Azilsartan Impurity 80 (CAS 136285-66-0)
- Azilsartan Impurity 75 (CAS 2826360-62-5)
- Azilsartan Impurity 76 (CAS CATO-C4X-109676)
- Azilsartan Impurity 77 (CAS CATO-C4X-109677)
- Azilsartan Impurity 37 (CAS 80841-79-8)
- Azilsartan Impurity 66 (CAS CATO-C4X-109666)
Recommended Standards
- 773109-13-0 2-Methoxy-5-(trifluoromethoxy)phenylacetic acid MFCD04972913 (CAS 773109-13-0)
- 2-Bromo-3-methyl-n-(2-methylbutan-2-yl)butanamide (CAS 1016773-95-7)
- Ethyl 2-hydroxy-5-(trifluoromethoxy)benzoate (CAS 457889-57-5)
- 1-(4-Fluorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (CAS 1018498-97-9)
- N-Nitroso Dalilesen impurity 35-d3 (CAS CATO-C4X-301035)
- Levofloxacin Impurity 101 (CAS 105804-40-8)
- Vericiguat Impurity 88 (CAS CATO-C4X-289688)
- (S)-4-(2-benzamido-5-guanidinopentanamido)benzoic acid (CAS 60833-82-1)
- N-(2-hydroxypropyl)-4-methylbenzenesulfonamide (CAS 59724-53-7)
- 3-(2-Cyanopropan-2-yl)benzonitrile (CAS 1314647-07-8)
- (R)-2-Trifluoromethylpiperidinesulfonyl chloride (CAS 1389310-15-9)
- 5-Amino-2-chlorobenzenesulfonamide (CAS 2015-19-2)
- ethyl 4-(trifluoromethyl)thiazole-5-carboxylate (CAS 106203-24-1)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com