Tepotinib impurity 4 CAS CATO-C4X-33744
| CAS No. | CATO-C4X-33744 |
| Molecular Formula | C29H28N6O3 |
| Molecular Weight | 508.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Tepotinib impurity 4.
As a process- or degradation-related impurity, Tepotinib impurity 4 (CAS CATO-C4X-33744, C29H28N6O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C29H28N6O3, Tepotinib impurity 4 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 508.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C29H28N6O3 |
| Molecular Weight | 508.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Tepotinib Standards
- Tepotinib Impurity 36 (CAS 1103507-25-0)
- Tepotinib impurity 15 (CAS CATO-C4X-337415)
- Tepotinib Impurity 35 (CAS 1103507-32-9)
- Tepotinib impurity 7 (CAS 1103507-26-1)
- Tepotinib impurity 2 (CAS 1233361-36-8)
- Tepotinib impurity 5 (CAS 1233361-38-0)
- Tepotinib impurity 10 (CAS CATO-C4X-337410)
- Tepotinib (CAS 1100598-32-0)
Recommended Standards
- (Z-Cys-OH)2 (Disulfide bond) (CAS 6968-11-2)
- Abemaciclib Impurity 56 (CAS CATO-C4X-293756)
- H-D-Leu-Thr-Arg-pNA (CAS 122630-72-2)
- Avibactam Impurity 154 (CAS CATO-C4X-1348154)
- CAS CATO-C4X-34242 (CAS CATO-C4X-34242)
- Glycopyrrolate Impurity 9 (CAS CATO-C4X-14319)
- Norfloxacin Impurity 39 (CAS CATO-C4X-146839)
- Boc-Nalpha-methyl-DL-tryptophan (CAS 1452574-00-3)
- Olaparib Impurity 15 (CAS 2905341-99-1)
- 3-Chloro-5-(difluoromethyl)phenol (CAS 1261777-16-5)
- Ethyl 2-(2-chloropropanamido)-4-phenylthiophene-3-carboxylate (CAS 728898-92-8)
- Sumatriptan EP Impurity H (CAS 1391052-59-7)
- 2-Bromo-2-fluoroacetamide (CAS 430-91-1)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
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