Telmisartan Impurity 55 CAS 128-08-5
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 128-08-5 |
| Molecular Formula | C4H4BrNO2 |
| Molecular Weight | 177.98 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Telmisartan Impurity 55 (CAS 128-08-5) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C4H4BrNO2. Molecular weight: 177.98 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H4BrNO2 |
| Molecular Weight | 177.98 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Telmisartan Standards
- Telmisartan Impurity 86 (CAS CATO-C4X-135986)
- Telmisartan Impurity 79 (CAS CATO-C4X-135979)
- Telmisartan Impurity 29 (CAS 1132638-92-6)
- Telmisartan Impurity 88 (CAS CATO-C4X-135988)
- Telmisartan Impurity 89 (CAS CATO-C4X-135989)
- Telmisartan Impurity 40 (CAS 2840-51-9)
- Telmisartan Impurity 52 (CAS 7356-11-8)
- Telmisartan Impurity 23 (CAS 84859-27-8)
Recommended Standards
- Pyrophosphoric acid (CAS 2466-09-3)
- (2-Methyl-2,3-dihydrobenzofuran-5-yl)boronic acid (CAS 1028748-11-9)
- 5-(Bromomethyl)isoxazol-3(2H)-one (CAS 83014-80-6)
- Tryptophan EP Impurity F (CAS 145545-23-9)
- Peptide Impurity 28 (CAS 1350456-64-2)
- Dapoxetine Impurity 57 (CAS 126113-24-4)
- 2-(Chloromethyl)pyrrolo[2,1-f][1,2,4]triazin-4-amine (CAS 1495062-99-1)
- 4-Chloro-6-(difluoromethyl)-2-hydroxy-3-methylpyridine (CAS 1805413-01-7)
- 2-((4-Amino-5-cyclohexyl-4H-1,2,4-triazol-3-yl)thio)-N-(p-tolyl)acetamide (CAS 578746-81-3)
- HA Peptide (CAS 92000-76-5)
Why CATO?
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