Azilsartan Impurity 19 CAS 1993494-84-0
| CAS No. | 1993494-84-0 |
| Molecular Formula | C22H15N3O3 |
| Molecular Weight | 369.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Azilsartan Impurity 19 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Azilsartan Impurity 19 (CAS 1993494-84-0, C22H15N3O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C22H15N3O3, Azilsartan Impurity 19 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 369.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Azilsartan Impurity 19 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 | C22H15N3O3 |
| Molecular Weight | 369.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
Related Azilsartan Standards
- Azilsartan Impurity 131 (CAS CATO-C4X-1096131)
- Azilsartan impurity 141 (CAS CATO-C4X-1096141)
- Azilsartan Impurity 9 (CAS 136285-69-3)
- Azilsartan Impurity 89 (CAS 147404-75-9)
- Azilsartan Impurity 112 (CAS CATO-C4X-1096112)
- Azilsartan Impurity 130 (CAS CATO-C4X-1096130)
- Azilsartan Impurity 158 (CAS 183986-64-3)
- Azilsartan Impurity 74 (CAS 139481-33-7)
Recommended Standards
- (+/-)-Nor-|A-hydrastine (+/-)-|A-Norhydrastine (3S)-rel-6,7-Dimethoxy-3-[(5R)-5,6,7,8-tetrahydro-1,3-dioxolo[4,5-g]isoquinolin-5-yl]-1(3H)-isobenzofuranone 66408-36-4 (CAS 66408-36-4)
- Molnupiravir Impurity 4 (CAS 2346620-55-9)
- Tec-IN-6 (CAS 923762-87-2)
- Cabotegravir Impurity 12 (CAS CATO-C4X-287612)
- Pemafibrate Impurity 66 (CAS CATO-C4X-290366)
- Chlorhexidine EP Impurity M (CAS 152504-12-6)
- Glipizide EP Impurity C (CAS 13554-93-3)
- Urapidil Impurity 109 (CAS 2906131-95-9(free base))
- Cefpodoxime Proxetil Impurity 37 (CAS CATO-C4X-157937)
- 3,7-dimethyl-1,5-naphthyridin-4-ol (CAS 1777862-35-7)
- (2S,3S)-3-Amino-2-hydroxy-3-(4-(trifluoromethyl)phenyl)propanoic acid (CAS 959574-20-0)
- 4-Cyano-6-(difluoromethyl)-5-nitronicotinic acid (CAS 1805289-38-6)
- 3-Fluoro-5-methoxybenzaldehyde (CAS 699016-24-5)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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