Eravacycline Impurity 4(TP-4308） CAS CATO-C4X-29384
| CAS No. | CATO-C4X-29384 |
| Molecular Formula | C27H31FN4O7 |
| Molecular Weight | 542.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Eravacycline Impurity 4(TP-4308） (C27H31FN4O7) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Eravacycline Impurity 4(TP-4308） (CAS CATO-C4X-29384) is a certified pharmaceutical impurity reference standard with the molecular formula C27H31FN4O7 and a molecular weight of 542.56 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C27H31FN4O7 |
| Molecular Weight | 542.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | ＞95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Eravacycline Standards
- Eravacycline Impurity 5(TP-6773） (CAS CATO-C4X-29385)
- Eravacycline Impurity 8 (CAS CATO-C4X-29388)
- Eravacycline Impurity 3(TP-9944） (CAS CATO-C4X-29383)
- Eravacycline Impurity 12(TP-5799） (CAS CATO-C4X-293812)
- Eravacycline impurity 34 (CAS CATO-C4X-293834)
- Eravacycline impurity 38 (CAS CATO-C4X-293838)
- Eravacycline impurity 28 (CAS CATO-C4X-293828)
- Eravacycline Impurity 9(TP-4705） (CAS CATO-C4X-29389)
Recommended Standards
- Ponatinib Impurity 11 (CAS CATO-C4X-226911)
- 1,3-Bis-(1-benzyl-4-trifluoromethyl-piperidin-4-yl)-urea (CAS 2097068-72-7)
- Jasminin (CAS 30164-93-3)
- Nilotinib Impurity 43 (CAS CATO-C4X-125643)
- Aspirin Impurity 14 (CAS 85531-25-5)
- Mometasone Impurity 37 (CAS CATO-C4X-170437)
- Lemborexant Impurity 41 (CAS 1547707-34-5(free acid))
- TCN 213 (CAS 556803-08-8)
- 2'-Chloro-6'-fluoro-[1,1'-biphenyl]-2-ol (CAS 1879712-94-3)
- 8-Methoxy-2-(trifluoromethyl)quinazolin-4(1H)-one (CAS 640297-55-8)
- Pitolisant impurity 31 (CAS CATO-C4X-252031)
- 2-(2-(3-Chloro-2-fluorophenoxy)ethyl)-1,3-dioxane (CAS 1443336-74-0)
- (R)-(1-Ethylazetidin-2-yl)methanol hydrochloride (CAS 2454490-54-9)
- Antistasin-Related Peptide (CAS 161561-46-2)
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