Azilsartan Impurity 72 CAS 21606-04-2
| CAS No. | 21606-04-2 |
| Molecular Formula | C9H7NO6 |
| Molecular Weight | 225.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Azilsartan Impurity 72 (C9H7NO6) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Azilsartan Impurity 72 (CAS 21606-04-2) is a certified pharmaceutical impurity reference standard with the molecular formula C9H7NO6 and a molecular weight of 225.15 g/mol.
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.
CATO manufactures Azilsartan Impurity 72 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7NO6 |
| Molecular Weight | 225.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Azilsartan Standards
- Azilsartan Impurity 60 (CAS CATO-C4X-109660)
- Azilsartan Impurity 37 (CAS 80841-79-8)
- Azilsartan Impurity 91 (CAS 61063-11-4)
- Azilsartan Impurity 75 (CAS 2826360-62-5)
- Azilsartan Impurity 76 (CAS CATO-C4X-109676)
- Azilsartan Impurity 77 (CAS CATO-C4X-109677)
- Azilsartan Impurity 90 (CAS 73833-13-3)
- Azilsartan Impurity N1 (CAS 1234834-29-7)
Recommended Standards
- Apremilast impurity 92 (CAS 6744-85-0)
- Monomethyl 5-Nitroisophthalate (CAS 1955-46-0)
- 7-nitro-2,3-dihydro-1,4-benzodioxine-5-carboxylic acid (CAS 66410-87-5)
- 2,2-Difluoro-1-(3-(trifluoromethyl)phenyl)ethan-1-amine (CAS 1039960-41-2)
- Cefprozil Impurity 12 (CAS CATO-C4X-149212)
- Indapamide Impurity 47 (CAS CATO-C4X-140047)
- Safinamide Impurity 20 (CAS 4397-53-9)
- 4-Chloro-6-methoxy-2-phenylpyrimidine (CAS 4319-72-6)
- 1-(1H-pyrrol-2-ylmethyl)piperazine (CAS 872408-59-8)
- 4-Chlorophenethyl indolizine-7-carboxylate (CAS 62103-40-6)
- 8-Methyl-8-azabicyclo[3.2.1]oct-3-ene (CAS 529-18-0)
- (S)-(3-(2-Hydroxyethyl)cyclopent-2-ene-1,2-diyl)dimethanol (CAS 126594-64-7)
- Methyl 2-cyano-4-nitrobenzoate (CAS 1804177-30-7)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com