Rebamipide Impurity 7 CAS 90098-08-1
| CAS No. | 90098-08-1 |
| Molecular Formula | C19H14Cl2N2O4 |
| Molecular Weight | 405.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Rebamipide Impurity 7 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 405.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Rebamipide Impurity 7 (CAS 90098-08-1), a pharmacopoeial impurity reference standard (molecular formula C19H14Cl2N2O4, MW 405.23 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.
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 | C19H14Cl2N2O4 |
| Molecular Weight | 405.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Rebamipide Standards
- Rebamipide Impurity 29 (CAS CATO-C4X-152329)
- Rebamipide impurity 15 (CAS CATO-C4X-152315)
- Rebamipide Impurity 52 (CAS CATO-C4X-152352)
- Rebamipide impurity 28 (CAS CATO-C4X-152328)
- Rebamipide impurity 21 (CAS 452322-61-1)
- Rebamipide impurity 18 (CAS CATO-C4X-152318)
- Rebamipide Impurity 6 (CAS 90098-38-7)
- Rebamipide impurity 17 (CAS CATO-C4X-152317)
Recommended Standards
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- N-(2,4-Dichlorophenyl)-3-(5-(3-nitrophenyl)furan-2-yl)propanamide (CAS 853329-84-7)
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- 4-Formyl-2-methoxyphenyl 3,4,5-trimethoxybenzoate (CAS 71989-95-2)
- Ethyl 3-(4-Bromo-2-chlorophenyl)-3-oxopropionate (CAS 131994-22-4)
- CL 316243 Disodium Salt (CAS 138908-40-4)
- 1234351-86-0 (2Z)-6-Hydroxy-2-(2-methoxybenzylidene)-1-benzofuran-3(2H)-one MFCD04144687 (CAS 1234351-86-0)
- 2-(Ethylthio)-1-(p-tolyl)ethan-1-one (CAS 115505-08-3)
- (2,3-Dihydropyrazolo[5,1-b]thiazol-6-yl)methanol (CAS 623565-45-7)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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