Azilsartan Impurity 76 CAS 138320-11-3
| CAS No. | 138320-11-3 |
| Molecular Formula | C4H8O3 |
| Molecular Weight | 104.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Azilsartan Impurity 76 (CAS 138320-11-3), molecular formula C4H8O3 and molecular weight 104.10 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Azilsartan Impurity 76 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 104.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C4H8O3 |
| Molecular Weight | 104.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1996 |
Related Azilsartan Standards
- Azilsartan Impurity 172 (CAS CATO-C4X-1096172)
- Azilsartan Impurity 69 (CAS 91526-18-0)
- Azilsartan Impurity N4 (CAS 146897-17-8)
- Azilsartan Impurity 58 (CAS 1417576-03-4)
- Azilsartan Impurity 10 (CAS 5368-01-4)
- Azilsartan Impurity 135 (CAS 209551-67-7)
- Azilsartan impurity 164 (CAS 1948222-11-4)
- Azilsartan Impurity 31 (CAS 10072-05-6)
Recommended Standards
- Tetrahydrofuran-2,5-diol (CAS 133200-67-6)
- 1,4-Dihydroxybutan-2-one (CAS 140-86-3)
- 1,1-Difluoro-3-Methylene-Cyclobutane (CAS 110654-33-6)
- Succinic-d4 Anhydride (CAS 14341-86-7)
- 4-Ethynyl-2-(trifluoromethyl)pyrimidine (CAS 37972-21-7)
- 5-(1-tert-Butyloxycarbonyl-2,3-dihydro-1H-indol-5-yl)-7-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1391053-27-2)
- (S)-3-amino-2-(2-(trifluoromethyl)benzyl)propanoic acid (CAS 1260614-30-9)
- (2S,3R)-2-Amino-3-methylpentanedioic acid (CAS 33511-69-2)
- 2-(4-Benzhydrylpiperazin-1-yl)-2-methylpropanenitrile (CAS 338753-78-9)
- Tris(N,N'-di-i-propylformamidinato)yttrium(III) (CAS 2409013-69-8)
- 1-(1-Phenylcyclopentyl)cyclopropan-1-amine (CAS 1343003-38-2)
- Sodium Dibenzyldithiocarbamate Hydrate (CAS 55310-46-8)
- 2,3,4,5-Tetrahydroxypentanal (CAS 53106-52-8)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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