Carbamazepine EP Impurity B CAS 611-64-3
| CAS No. | 611-64-3 |
| Molecular Formula | C14H11N |
| Molecular Weight | 193.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Carbamazepine EP Impurity B under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
As a process- or degradation-related impurity, Carbamazepine EP Impurity B (CAS 611-64-3, C14H11N) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Carbamazepine EP Impurity B (C14H11N) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C14H11N |
| Molecular Weight | 193.24 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Carbamazepine Standards
- Carbamazepine EP Impurity D (CAS 256-96-2)
- Carbamazepine Impurity 34 (CAS CATO-C4X-118134)
- Carbamazepine Impurity 9 (CAS 70401-31-9)
- Carbamazepine Impurity 33 (CAS 34124-14-6)
- Carbamazepine Impurity 25 (CAS 7458-8-4)
- Carbamazepine Impurity 2 (CAS 13080-75-6)
- Carbamazepine EP Impurity A (CAS 3564-73-6)
- Carbamazepine-d2 (Major) (CAS 1189902-21-3)
Recommended Standards
- Mianserin impurity 38 (CAS CATO-C4X-136938)
- Ivabradine Impurity 81 (CAS CATO-C4X-111981)
- Itopride Impurity 19 (CAS 15182-92-0)
- Ivabradine Impurity 16 (CAS 73344-75-9)
- Regorafenib Impurity 84 (CAS CATO-C4X-104784)
- Tretinoin Impurity 22 (CAS 352199-94-1)
- Cefotiam Impurity 45 (CAS CATO-C4X-120445)
- methyl[2-methyl-1-(morpholin-4-yl)propan-2-yl]amine dihydrochloride (CAS 1864016-70-5)
- 1-Amino-2,2,5,5-tetramethylhexan-3-ol (CAS 1509079-04-2)
- 2,4-Dimethoxy-3-methylbenzoic acid (CAS 81574-49-4)
- 4-(Cyclopropylmethoxy)-3-methylbenzaldehyde (CAS 820237-14-7)
- Fmoc-3,4-dichloro-L-homophenylalanine (CAS 1260616-12-3)
- Apixaban Impurity 13 (CAS CATO-C4X-108813)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com