Remdesivir Impurity 12 CAS 937046-98-5
| CAS No. | 937046-98-5 |
| Molecular Formula | C6H5BrN4 |
| Molecular Weight | 213.03 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Remdesivir Impurity 12 (CAS 937046-98-5), a pharmacopoeial impurity reference standard (molecular formula C6H5BrN4, MW 213.03 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C6H5BrN4, Remdesivir Impurity 12 contains a nitrile group, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C6H5BrN4 |
| Molecular Weight | 213.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Remdesivir Standards
- Remdesivir Impurity 16 (CAS CATO-C4X-210016)
- Remdesivir Impurity 38 (CAS 13199-25-2)
- Remdesivir Impurity 17 (CAS CATO-C4X-210017)
- Remdesivir Impurity 1 (CAS 1770840-43-1)
- Remdesivir Impurity 44 (CAS 1187550-21-5)
- Remdesivir Impurity 39 (CAS 58479-61-1)
- Remdesivir Impurity 19 (CAS 1355049-95-4)
- Remdesivir Impurity 5 (CAS 1191237-69-0)
Recommended Standards
- Butylphthalide Impurity 68 (CAS 105694-44-8)
- 2-Butyl-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione (CAS 1104637-43-5)
- Butylphthalide Impurity 67 (CAS 102308-43-0)
- (3-(Phenylamino)phenyl)boronic acid (CAS 1201643-68-6)
- Tedizolid impurity 103 (CAS CATO-C4X-1054103)
- Baloxavir Impurity 108 (CAS 2640188-50-5)
- Azathioprine Impurity 24 (CAS CATO-C4X-146324)
- Apremilast Impurity 111 (CAS 60758-79-4)
- Bis(4-(methylthio)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methane (CAS 87791-31-9)
- 3-Amino-2-hydroxy-4-methylpentanoic acid (CAS 117213-88-4)
- methyl N-[4-(chlorosulfonyl)-2-nitrophenyl]carbamate (CAS 1601259-20-4)
- 2-(1-Benzyl-4-methyl-3-oxo-2-piperazinyl)-acetic acid (CAS 1236267-76-7)
- 4-(Benzylamino)-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 1006954-19-3)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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