Azilsartan Impurity 76 CAS CATO-C4X-109676
| CAS No. | CATO-C4X-109676 |
| Molecular Formula | C10H10O7 |
| Molecular Weight | 242.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 242.18 g/mol gives Azilsartan Impurity 76 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Azilsartan Impurity 76 (CAS CATO-C4X-109676) is a certified pharmaceutical impurity reference standard with the molecular formula C10H10O7 and a molecular weight of 242.18 g/mol.
The molecular framework of Azilsartan Impurity 76 (C10H10O7) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C10H10O7 |
| Molecular Weight | 242.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Azilsartan Standards
- Azilsartan Impurity 75 (CAS 2826360-62-5)
- Azilsartan Impurity 77 (CAS CATO-C4X-109677)
- Azilsartan Impurity 90 (CAS 73833-13-3)
- Azilsartan Impurity 37 (CAS 80841-79-8)
- Azilsartan Impurity 61 (CAS 856414-36-3)
- Azilsartan Impurity 114 (CAS CATO-C4X-1096114)
- Azilsartan Impurity 80 (CAS 136285-66-0)
- Azilsartan Impurity 72 (CAS 21606-04-2)
Recommended Standards
- 2-carboxylic acid-1,4-naphthoquinone (CAS 1133287-34-9)
- Trimethyl 1H-pyrazole-3,4,5-tricarboxylate (CAS 1027618-63-8)
- Triethyl 2-fluoro-2-phosphonoacetate (CAS 2356-16-3)
- 6-[3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]-2,3-dihydropyridazin-3-one (CAS 1239847-01-8)
- Rebamipide Impurity 32 (CAS CATO-C4X-152332)
- Vecuronium Bromide Impurity 4 (CAS 13522-16-2)
- Ibuprofen Impurity 44 (CAS CATO-C4X-108244)
- 1-(4-Methoxy-phenyl)-1H-benzoimidazole-2-thiol (CAS 26495-07-8)
- (1R,4R,5S)-2-azabicyclo[2.1.1]Hexan-5-ol (CAS 1251008-55-5)
- 2-Methylquinoline-6-boronic Acid (CAS 1092790-20-9)
- 6-Chloro-3-(3,4-dichlorophenyl)pyridazin-4-ol (CAS 80591-70-4)
- 1-Amino-6-bromo-2,3-dihydro-1h-indene-1-carboxylic acid (CAS 1270373-66-4)
- 4-Methyl-4-phenylcyclohexan-1-amine hydrochloride (CAS 56327-27-6)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
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