Rebamipide Impurity 38 CAS 23976-54-7
| CAS No. | 23976-54-7 |
| Molecular Formula | C10H7Br2NO |
| Molecular Weight | 316.98 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Rebamipide Impurity 38 (C10H7Br2NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 316.98 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a process- or degradation-related impurity, Rebamipide Impurity 38 (CAS 23976-54-7, C10H7Br2NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 | C10H7Br2NO |
| Molecular Weight | 316.98 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Rebamipide Standards
- Rebamipide impurity 04 (CAS 23974-11-0)
- Rebamipide Impurity 34 (CAS CATO-C4X-152334)
- Rebamipide Impurity 53 (CAS CATO-C4X-152353)
- Rebamipide impurity 02 (CAS 1984832-92-9)
- Rebamipide Impurity 62 (CAS 889573-80-2)
- Rebamipide Impurity 4 (CAS 100342-53-8)
- Rebamipide impurity 22 (CAS 212502-72-2)
- Rebamipide impurity 24 (CAS CATO-C4X-152324)
Recommended Standards
- 8-Amino-5,7-dibromo-2-naphthalenol (CAS 497151-52-7)
- (7-Bromo-9,9-dimethyl-9H-fluoren-2-yl)boronic Acid(contains varying amounts of Anhydride) (CAS 1213768-48-9)
- 6,8-Dibromoisochromane-7-carbonitrile (CAS 2768872-16-6)
- 1-Chloroeicosane (CAS 42217-02-7)
- Cinacalcet Impurity 23 (CAS 3886-70-2)
- Zopiclone EP Impurity B (CAS 43200-81-3)
- Cefradine EP Impurity C&D Mixture (CAS CATO-C4X-12158)
- cis-5-(Propylsulfonyl)octahydropyrrolo[3,4-b]pyrrole (CAS 1218413-69-4)
- Methyl 4-6-O-benzylidene-2-3-di-O-benzyl-α-D-glucopyranoside (CAS 13225-19-9)
- 6-Ethylpyridazin-3(2H)-one (CAS 51355-93-2)
- Propofol Impurity 47 (CAS CATO-C4X-147347)
- tert-butyl (2S)-2-(cyanomethyl)azetidine-1-carboxylate (CAS 228868-28-8)
- 4-Hydrazineyl-2-methylbutan-2-ol oxalate (CAS 1803581-82-9)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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