Difamilast Impurity 10 CAS 2103190-58-3
| CAS No. | 2103190-58-3 |
| Molecular Formula | C21H20F2N2O5 |
| Molecular Weight | 418.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Difamilast Impurity 10 (CAS 2103190-58-3) is a certified pharmaceutical impurity reference standard with the molecular formula C21H20F2N2O5 and a molecular weight of 418.39 g/mol.
Based on its molecular formula C21H20F2N2O5, Difamilast Impurity 10 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 418.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Difamilast Impurity 10 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H20F2N2O5 |
| Molecular Weight | 418.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Difamilast Standards
- Difamilast Impurity 1 (CAS 1574285-40-7)
- Difamilast Impurity 3 (CAS 937782-02-0)
- Difamilast Impurity 5 (CAS 2103190-81-2)
- Difamilast Impurity 8 (CAS 2103190-85-6)
- Difamilast (CAS 937782-05-3)
- Difamilast Impurity 6 (CAS 937782-01-9)
- Difamilast Impurity 2 (CAS 2103190-94-7)
- Difamilast Impurity 4 (CAS 2103190-65-2)
Recommended Standards
- Moxifloxacin impurity 131 (CAS CATO-C4X-1074131)
- Liquiritin (CAS 551-15-5)
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- Minoxidil Impurity 50 (CAS CATO-C4X-170050)
- Brivaracetam Impurity 44 (CAS CATO-C4X-200744)
- Quetiapine impurity 72 (CAS CATO-C4X-124472)
- 4-(Fluoromethyl)tetrahydro-2H-pyran-4-amine (CAS 1781543-98-3)
- (2-Bromo-6-(difluoromethyl)-3-methoxypyridin-4-yl)methanol (CAS 1805165-52-9)
- Cisatracurium EP Impurity M Ditrifluoroacetate (CAS CATO-C4X-185072)
- 7-Methoxy-1-methyl-1,2,3,4-tetrahydroisoquinolin-6-ol (CAS 76419-97-1)
- 5-Ethoxy-3-ethyl-1-methyl-1h-pyrazol-4-amine (CAS 1497999-11-7)
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl acetate (CAS 2096334-94-8)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com