Azilsartan Impurity 77 CAS CATO-C4X-109677
| CAS No. | CATO-C4X-109677 |
| Molecular Formula | C10H10O7 |
| Molecular Weight | 242.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Azilsartan Impurity 77 (CAS CATO-C4X-109677), a pharmacopoeial impurity reference standard (molecular formula C10H10O7, MW 242.18 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Azilsartan Impurity 77 (C10H10O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 242.18 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Azilsartan Impurity 77 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 | 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 76 (CAS CATO-C4X-109676)
- 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
- Trimethyl 1H-pyrazole-3,4,5-tricarboxylate (CAS 1027618-63-8)
- 6-[3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]-2,3-dihydropyridazin-3-one (CAS 1239847-01-8)
- 2-carboxylic acid-1,4-naphthoquinone (CAS 1133287-34-9)
- furan-2-yl[4-(trifluoromethyl)phenyl]methanol (CAS 1245321-32-7)
- Flurbiprofen Impurity 37 (CAS 56430-67-2)
- Belzutifan Impurity 5 (CAS CATO-C4X-33945)
- Sorafenib impurity 63 (CAS 13509-13-2（free base))
- N-(4-chlorophenyl)-4-cyano-3-(trifluoromethyl)-1H-pyrazole-1-carboxamide (CAS 321574-28-1)
- 1,3-Dimethyl-1,5-dihydrofuro[3,4-d]pyrimidine-2,4,7(3H)-trione (CAS 4116-35-2)
- 2-((Thiazol-5-ylmethyl)amino)butan-1-ol (CAS 1341907-74-1)
- 5-(4-Bromophenyl)pyrimidine (CAS 160377-42-4)
- 6-Difluoromethoxy-2-fluoro-3-formylpyridine (CAS 1806303-53-6)
- 2-Bromo-5,6-dichloro-1H-benzo[d]imidazole (CAS 142356-40-9)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
Why CATO?
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