Azilsartan Impurity 135 CAS 209551-67-7
| CAS No. | 209551-67-7 |
| Molecular Formula | C7H8O5 |
| Molecular Weight | 172.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Azilsartan Impurity 135 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Azilsartan Impurity 135 (CAS 209551-67-7, C7H8O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Azilsartan Impurity 135 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Azilsartan Impurity 135 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 | C7H8O5 |
| Molecular Weight | 172.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
Related Azilsartan Standards
- Azilsartan impurity 164 (CAS 1948222-11-4)
- Azilsartan Impurity 31 (CAS 10072-05-6)
- Azilsartan Impurity 174 (CAS 2382294-55-3)
- Azilsartan Impurity 10 (CAS 5368-01-4)
- Azilsartan impurity 145 (CAS CATO-C4X-1096145)
- Azilsartan Impurity 58 (CAS 1417576-03-4)
- Azilsartan Impurity N4 (CAS 146897-17-8)
- Azilsartan Impurity N1 (CAS 1234834-29-7)
Recommended Standards
- Shikimic Acid Impurity 9 (CAS 2922-42-1)
- Lenvatinib Impurity 183 (CAS 72793-38-5)
- rel-(1R,2R)-4-Oxocyclopentane-1,2-dicarboxylic acid (CAS 67885-97-6)
- Carglumic Acid Impurity 1 (CAS 2380660-24-0)
- Ertapenem impurity 47 (CAS CATO-C4X-163347)
- Tobramycin Impurity 28 (CAS CATO-C4X-220028)
- Dexlansoprazole Impurity 6 (CAS 1409978-52-4)
- 4,4,5,5-Tetramethyl-2-(2-methylbenzo[b]thiophen-3-yl)-1,3,2-dioxaborolane (CAS 1174298-60-2)
- Tert-butyl (S)-3-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidine-1-carboxylate (CAS 1448171-01-4)
- 3,7-Diphenyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one (CAS 62538-45-8)
- n-(2,2-Difluoro-1,3-dioxaindan-5-yl)-2-hydroxyacetamide (CAS 926188-28-5)
- 4-Methoxybenzaldehyde-α-d1 (CAS 19486-71-6)
- 2-Amino-3-(4-chloro-1h-pyrazol-1-yl)-2-cyclopropylpropanamide (CAS 1341083-79-1)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
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