Mebendazole EP Impurity F CAS 31545-31-0
| CAS No. | 31545-31-0 |
| Molecular Formula | C17H15N3O3 |
| Molecular Weight | 309.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Mebendazole EP Impurity F is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 309.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Mebendazole EP Impurity F (CAS 31545-31-0) is a certified pharmaceutical impurity reference standard with the molecular formula C17H15N3O3 and a molecular weight of 309.32 g/mol.
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 | C17H15N3O3 |
| Molecular Weight | 309.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 3 |
Related Mebendazole Standards
- Mebendazole EP Impurity E (CAS 31430-19-0)
- Mebendazole EP Impurity D (CAS 132119-11-0)
- Mebendazole D3 (CAS 1173021-87-8)
- Mebendazole Impurity 14 (CAS 104663-13-0)
- Mebendazole (CAS 31431-39-7)
- Mebendazole impurity 3 (CAS CATO-C4X-27683)
- Mebendazole EP Impurity C (CAS 66066-76-0)
- Mebendazole EP Impurity B (CAS 21472-33-3)
Recommended Standards
- Methyl 2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-phenylpropanoate (CAS 7146-63-6)
- iGP-1 (CAS 27031-00-1)
- Methyl 2-[5-(Benzyloxy)-3-indolyl]-2-oxoacetate (CAS 62995-58-8)
- H-Tyr-D-Ala-Gly-OH (H-5125.0050) (CAS 69537-64-0)
- Duloxetine impurity 01 (CAS 132335-49-0)
- Ertapenem Impurity 14 (CAS CATO-C4X-163314)
- Cabozantinib Impurity 46 (CAS CATO-C4X-201846)
- Quinestradol (CAS 1169-79-5)
- (3aS,6aS)-1-((R)-1-Phenylethyl)octahydropyrrolo[3,4-b]pyrrole (CAS 370880-12-9)
- Cyclo(-Gly-Tyr(PO3H2)-Val-Pro-Met-Leu) (CAS 158778-21-3)
- 2-(Oxazol-2-yl)ethanol (CAS 1211519-60-6)
- 3-(Difluoromethyl)-6-methoxypicolinonitrile (CAS 1805305-34-3)
- 3,3-Bis(bromomethyl)oxetane (CAS 2402-83-7)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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