Valsartan Impurity 29 CAS 124750-51-2
| CAS No. | 124750-51-2 |
| Molecular Formula | C33H25BrN4 |
| Molecular Weight | 557.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 557.48 g/mol gives Valsartan Impurity 29 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Valsartan Impurity 29 (CAS 124750-51-2) is a certified pharmaceutical impurity reference standard with the molecular formula C33H25BrN4 and a molecular weight of 557.48 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, Valsartan Impurity 29 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 557.48 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.
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 | C33H25BrN4 |
| Molecular Weight | 557.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >80% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Valsartan Standards
- Valsartan Impurity 25 (CAS 133051-88-4)
- 4-Oxo Valsartan Benzyl Ester (CAS 188240-32-6)
- Valsartan Impurity 28 (CAS 154709-17-8)
- Valsartan Impurity 56 (CAS 1353844-75-3)
- Valsartan Impurity 150 (CAS CATO-C4X-1057150)
- Valsartan EP Impurity B (CAS 137863-20-8)
- Valsartan Impurity 64 (CAS 143618-44-4)
- Valsartan Impurity 49 (CAS CATO-C4X-105749)
Recommended Standards
- (2E)-3-{4-[(2,4-dichlorophenyl)methoxy]phenyl}-1-[4-(diphenylmethyl)piperazin-1-yl]prop-2-en-1-one (CAS 477888-72-5)
- Olmesartan Impurity 13 (CAS 159532-62-4)
- Polaprezinc impurity 25 (CAS CATO-C4X-182125)
- Ibrutinib Impurity 28 (CAS CATO-C4X-106428)
- Olmesartan impurity 102 (CAS CATO-C4X-1097102)
- Epinephrine /Adrenaline Impurity 55 (CAS 60912-82-5)
- Apremilast Impurity 82 (CAS CATO-C4X-100982)
- 6-Methyl-2-piperazin-1-yl-1,3-benzothiazole (CAS 1018498-61-7)
- Lactamide (CAS 2043-43-8)
- Ethyl 2-oxo-2-(quinolin-6-yl)acetate (CAS 1093204-29-5)
- 2-(2-(2-Hydroxyethoxy)ethoxy)ethyl butyrate (CAS 81558-07-8)
- (R)-3-(5-bromo-2-fluorophenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid (CAS 1998552-09-2)
- 4-(5-Methoxycarbonyl-isoxazol-3-yl)-piperidine-1-carboxylic acid tert-butyl ester (CAS 1361116-68-8)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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