N-Ethylcarbazole Impurity 2 CAS 57102-97-3
| CAS No. | 57102-97-3 |
| Molecular Formula | C14H12BrN |
| Molecular Weight | 274.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
N-Ethylcarbazole Impurity 2 (C14H12BrN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies N-Ethylcarbazole Impurity 2 (CAS 57102-97-3), a pharmacopoeial impurity reference standard (molecular formula C14H12BrN, MW 274.16 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), N-Ethylcarbazole Impurity 2 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H12BrN |
| Molecular Weight | 274.16 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related N Standards
- N-Ethylcarbazole Impurity 3 (CAS 56166-63-3)
- N-Ethylcarbazole Impurity 6 (CAS CATO-C4X-30406)
- N-Ethylcarbazole Impurity 5 (CAS CATO-C4X-30405)
- N-Ethylcarbazole Impurity 1 (CAS 1088098-21-8)
- 9-Ethylcarbazole-3-carboxylic acid (CAS 57102-98-4)
- 9-Ethylcarbazole-3-carboxaldehydeN-Methyl-N-phenylhydrazone (CAS 75232-44-9)
- N-Ethylcarbazole Impurity 4 (CAS 882883-55-8)
- 3-Ethylcarbazole (CAS 5599-49-5)
Recommended Standards
- 2-((5-bromopyrazin-2-yl)oxy)-N,N-diethylethan-1-amine 446287-01-0 [2-(5-Bromo-pyrazin-2-yloxy)ethyl]diethylamine (CAS 446287-01-0)
- Perfluorophenyl ethenesulfonate (CAS 452905-58-7)
- diethyl 2,2,4,4-tetrafluoro-3-oxopentanedioate (CAS 1001383-52-3)
- N-(4-Bromobenzylidene)-1-phenylmethanamine (CAS 27046-29-3)
- Lenacapavir impurity 18 (CAS 1417983-10-8)
- Norepinephrine Impurity 63 (CAS 3770-01-2)
- Ribociclib Impurity 29 (CAS CATO-C4X-310029)
- Methyl 2-(isopropylamino)nicotinate (CAS 1249355-76-7)
- Methyl 2-(2-aminophenyl)-2-oxoacetate hydrochloride (CAS 1823542-94-4)
- [2-(dimethylamino)ethyl][(1-methyl-1h-imidazol-2-yl)methyl]amine (CAS 779332-66-0)
- 1-Bromo-3-fluoro-2-iodo-4-methoxybenzene (CAS 2385126-32-7)
- Tert-butyl 3-aminopicolinate (CAS 1379367-66-4)
- 4-Hydroxy-4-(4-methoxy-3-methyl-phenyl)-butyric acid (CAS 879053-49-3)
- 30003-72-6 insulin chain b oxidized (CAS 30003-72-6)
Why CATO?
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