5-(3,4-Dichlorophenyl)-4-(3,4-dimethoxybenzoyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one CAS 618080-47-0
| CAS No. | 618080-47-0 |
| Molecular Formula | C25H20Cl2N2O5 |
| Molecular Weight | 499.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| 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.
5-(3,4-Dichlorophenyl)-4-(3,4-dimethoxybenzoyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 618080-47-0) is a high-purity analytical reference standard with the molecular formula C25H20Cl2N2O5 and a molecular weight of 499.34 g/mol.
Based on its molecular formula C25H20Cl2N2O5, 5-(3,4-Dichlorophenyl)-4-(3,4-dimethoxybenzoyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 499.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C25H20Cl2N2O5 |
| Molecular Weight | 499.34 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorophenyl Standards
- N-{1-[(2,6-dichlorophenyl)methyl]-2-oxo-5-(trifluoromethyl)-1,2-dihydropyridin-3-yl}-4-(propan-2-yloxy)benzamide (CAS 339025-21-7)
- Ethyl 5-(2,4-dichlorophenyl)-3-(3-hydroxy-1-oxo-1H-inden-2-yl)-4,6-dioxo-1,3a,4,5,6,6a-hexahydropyrrolo[3,4-c]pyrrole-1-carboxylate (CAS 321522-11-6)
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Recommended Standards
- 4-(3,6-Bis(dimethylamino)xanthylium-9-yl)-3-carboxy-2,5-dichlorobenzoate (CAS 198546-47-3)
- N-Nitroso Nicergoline Impurity 24 (CAS CATO-C4X-208524)
- 2-(3,6-Bis(dimethylamino)xanthylium-9-yl)-4-carboxy-3,6-dichlorobenzoate (CAS 407581-83-3)
- N-Nitroso Nicergoline Impurity 25 (CAS 57682-67-4)
- 5-(4-Chloro-3-ethylphenoxy)pyrazine-2-carbonitrile (CAS 1394791-54-8)
- 2-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)propanal (CAS 23101-87-3)
- 1-(4-Iodobutyl)-2-methoxybenzene (CAS 75934-24-6)
- (S)-1-Benzyl 2-methyl 4-propyl-1H-pyrrole-1,2(2H,5H)-dicarboxylate (CAS 1798902-94-9)
- (5Z)-5-({4-[(6-chloropyridin-3-yl)methoxy]-3-methoxyphenyl}methylidene)-1,3-thiazolidine-2,4-dione (CAS 860783-86-4)
- N1,N2-Diethyl-N1-(2-(ethylamino)ethyl)ethane-1,2-diamine (CAS 105-93-1)
- 2-(2-Chloro-[3,3'-bipyridin]-4-yl)acetonitrile (CAS 1227591-70-9)
- 2,9-Diazaspiro[5.5]undecane (CAS 189510-53-0)
- (3-(Difluoromethyl)-2-fluoro-5-(trifluoromethyl)pyridin-4-yl)methanamine (CAS 1805201-46-0)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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