Telmisartan Impurity 83 CAS CATO-C4X-135983
| CAS No. | CATO-C4X-135983 |
| Molecular Formula | C33H29N5 |
| Molecular Weight | 495.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Telmisartan Impurity 83 (CAS CATO-C4X-135983) is a certified pharmaceutical impurity reference standard with the molecular formula C33H29N5 and a molecular weight of 495.62 g/mol.
Structurally, Telmisartan Impurity 83 (C33H29N5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 22.0, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 495.62 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C33H29N5 |
| Molecular Weight | 495.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Telmisartan Standards
- Telmisartan Impurity 101 (CAS 1338830-39-9)
- Telmisartan EP Impurity G (CAS 144702-27-2)
- Telmisartan Impurity 24 (CAS 144701-81-5)
- Telmisartan Impurity 26 (CAS CATO-C4X-135926)
- Telmisartan Impurity 82 (CAS 1159493-10-3)
- Telmisartan Impurity 25 (CAS CATO-C4X-135925)
- Telmisartan Impurity 102 (CAS CATO-C4X-1359102)
- Telmisartan EP Impurity F (CAS 915124-86-6)
Recommended Standards
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