Carbazochrome Impurity 25 CAS CATO-C4X-229125
| CAS No. | CATO-C4X-229125 |
| Molecular Formula | C11H13N7O2 |
| Molecular Weight | 275.27 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 275.27 g/mol gives Carbazochrome Impurity 25 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Carbazochrome Impurity 25 (CAS CATO-C4X-229125, C11H13N7O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C11H13N7O2, Carbazochrome Impurity 25 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 275.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H13N7O2 |
| Molecular Weight | 275.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Carbazochrome Standards
- Carbazochrome impurity 44 (CAS CATO-C4X-229144)
- Carbazochrome Impurity 19 (CAS CATO-C4X-229119)
- Carbazochrome Impurity 21 (CAS CATO-C4X-229121)
- Carbazochrome impurity 45 (CAS CATO-C4X-229145)
- Carbazochrome Impurity 22 (CAS CATO-C4X-229122)
- Carbazochrome Impurity 39 (CAS CATO-C4X-229139)
- Carbazochrome Impurity 41 (CAS CATO-C4X-229141)
- Carbazochrome Impurity 43 (CAS CATO-C4X-229143)
Recommended Standards
- Levocabastine impurity 17 (CAS CATO-C4X-228917)
- Alternariol Monomethyl Ether-d3 (CAS CATO-CCPD103209)
- Fluvoxamine impurity 41 (CAS CATO-C4X-195141)
- Ethyl 2-(((5-methyl-3-nitro-1h-pyrazol-1-yl)methyl)sulfinyl)acetate (CAS 1020724-52-0)
- Saxagliptin Impurity 64 HCl (CAS CATO-C4X-104964)
- Chlorphenamine EP Impurity D HCI (CAS 65676-21-3（free base）)
- Bortezomib Impurity 63 (CAS 1375004-38-8)
- 2,5-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1622217-35-9)
- Levocetirizine Impurity 49 (CAS CATO-C4X-108349)
- Guanfacine Hydrochloride Impurity 2 (CAS 78433-88-2)
- 2-(4-(2-Hydroxyethyl)piperazin-1-yl)quinolin-8-ol (CAS 1226082-02-5)
- 4-(3,5-Dichlorophenoxy)-N-ethyl-6-(trifluoromethyl)pyrimidin-2-amine (CAS 339011-13-1)
- Sodium tetrahydrofuran-3-sulfinate (CAS 1622013-59-5)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
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