Azilsartan Impurity 66 CAS CATO-C4X-109666
| CAS No. | CATO-C4X-109666 |
| Molecular Formula | C14H13N5O |
| Molecular Weight | 267.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Azilsartan Impurity 66.
As a process- or degradation-related impurity, Azilsartan Impurity 66 (CAS CATO-C4X-109666, C14H13N5O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Azilsartan Impurity 66 (C14H13N5O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 267.29 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).
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), Azilsartan Impurity 66 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 | C14H13N5O |
| Molecular Weight | 267.29 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Azilsartan Standards
- Azilsartan Impurity 80 (CAS 136285-66-0)
- Azilsartan Impurity 114 (CAS CATO-C4X-1096114)
- Azilsartan Impurity 121 (CAS CATO-C4X-1096121)
- Azilsartan Impurity 56 (CAS 91526-16-8)
- Azilsartan Impurity 61 (CAS 856414-36-3)
- Azilsartan Impurity 90 (CAS 73833-13-3)
- Azilsartan Impurity 75 (CAS 2826360-62-5)
- Azilsartan Impurity 76 (CAS CATO-C4X-109676)
Recommended Standards
- 11K-030 303145-73-5 7-[(E)-2-(4-methoxyphenyl)ethenyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 303145-73-5)
- 1-Benzyl-4-(4-fluorophenyl)-1H-imidazol-5-amine (CAS 1016809-33-8)
- n-Benzyl-7-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxamide (CAS 790243-31-1)
- tert-Butyl n-[2-(4-fluoro-3-methylphenyl)-2-oxoethyl]carbamate (CAS 1035818-88-2)
- Febuxostat Impurity 83 (CAS CATO-C4X-116283)
- N-Nitroso-Deferasirox EP Impurity F (CAS CATO-C4X-143823)
- Tetrabenazine Impurity 29-D6 (CAS CATO-C4X-274829)
- 2-Phenylbicyclo[2.2.1]hept-5-ene-2-carboxylic Acid (CAS 107774-49-2)
- (2,2-Dimethoxyethyl)(3-methoxyphenyl)sulfane (CAS 98733-08-5)
- 3-(2-{[(2,4-dichlorophenyl)methyl]sulfanyl}pyrimidin-4-yl)-1-(4-methylphenyl)-1,4-dihydropyridazin-4-one (CAS 478077-67-7)
- (E)-2-(Bis(methylthio)methylene)-5-(furan-2-yl)-3-oxopent-4-enenitrile (CAS 64307-23-9)
- Benzo[1,2-b:6,5-b']dithiophene-4,5-dione (CAS 24243-32-1)
- 9-Bromo-2,3-dihydro-1H-cyclopenta[b]quinoline (CAS 18528-77-3)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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