Regorafenib EP Impurity A CAS 757251-39-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 757251-39-1 |
| Molecular Formula | C13H12FN3O2 |
| Molecular Weight | 261.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Regorafenib EP Impurity A (CAS 757251-39-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C13H12FN3O2. Molecular weight: 261.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C13H12FN3O2 |
| Molecular Weight | 261.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Regorafenib Standards
- Regorafenib Impurity 32 (CAS CATO-C4X-104732)
- Regorafenib Impurity 51 (CAS CATO-C4X-104751)
- Regorafenib Impurity 36 (CAS 864245-61-4)
- Regorafenib Impurity 40 (CAS CATO-C4X-104740)
- Regorafenib Impurity 48 (CAS CATO-C4X-104748)
- Regorafenib Impurity 40 (CAS 2711-18-4)
- Regorafenib Impurity 43 (CAS 1798046-84-0)
- Regorafenib Impurity 5 (CAS 19448-54-5)
Recommended Standards
- Flupirtine Impurity 4 (CAS 1506942-35-3)
- Carbamic acid, N-[3-fluoro-4-(hydroxymethyl)phenyl]-, phenyl ester (CAS 1402585-33-4)
- N-Cyclohexyl-6-(Trifluoromethyl)-1,3,5-Triazine-2,4-Diamine (CAS 788-01-2)
- Budesonide Impurity 40 (CAS 91160-89-3)
- Imipenem Impurity 10 (CAS CATO-C4X-166210)
- (4-Bromo-6-chloro-5-(difluoromethyl)pyridin-2-yl)methanol (CAS 1804459-76-4)
- 5-Bromo-3-(trifluoromethyl)picolinamide (CAS 1805142-81-7)
- 7-hydroxy-1H-indole-3-carboxylic acid (CAS 24370-79-4)
- (2E,4E,6E)-Ethyl 3-methyl-6-(2-((2-(trifluoromethyl)phenyl)sulfonyl)hydrazono)hexa-2,4-dienoate (CAS 2765851-45-2)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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