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
| CAS No. | 321522-11-6 |
| Molecular Formula | C24H16Cl2N2O6 |
| Molecular Weight | 499.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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), molecular formula C24H16Cl2N2O6 and molecular weight 499.30 g/mol, is a CATO reference standard with documented purity and traceability.
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 (C24H16Cl2N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 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 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 | C24H16Cl2N2O6 |
| Molecular Weight | 499.30 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ethyl 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)
- 5-(3,4-Dichlorophenyl)-4-(3,4-dimethoxybenzoyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 618080-47-0)
- 3-(2,6-Dichlorophenyl)-5-methyl-N-[4-(4-pentylcyclohexyl)phenyl]-1,2-oxazole-4-carboxamide (CAS 478041-41-7)
- 2,4-Dichlorophenyl 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}benzene-1-sulfonate (CAS 338400-30-9)
- 3,4-Dichlorophenyl 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}benzene-1-sulfonate (CAS 338414-07-6)
- N-(4-(2,4-dichlorophenyl)thiazol-2-yl)-2-((2,4,5-trichlorophenyl)thio)acetamide (CAS 338957-96-3)
- N-(2,3-dichlorophenyl)-2-((4-phenyl-5-((p-tolylamino)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332907-22-9)
- 2-((3,4-Dichlorophenyl)amino)-2-oxoethyl 6-((1,1-dioxidobenzo[d]isothiazol-3-yl)amino)hexanoate (CAS 736955-23-0)
Recommended Standards
- 4-Amino-1-[2,3-dihydro-7-nitro-4-[2-(phosphonooxy)-1-[(phosphonooxy)methyl]ethoxy]-1H-indol-1-yl]-1-butanone (CAS 927866-58-8)
- Resmetirom Impurity 38 (CAS CATO-C4X-291238)
- 2-{[(E)-(3-{[1,1'-biphenyl]-4-yl}-3-oxopropylidene)amino]oxy}-N-(5-iodopyridin-2-yl)acetamide (CAS 339018-05-2)
- (4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1,4-diazepan-1-yl)(3-(2-chlorophenyl)-5-methylisoxazol-4-yl)methanone (CAS 1022094-73-0)
- 2-Methoxy-N-(2-(thiophen-2-yl)phenyl)acetamide (CAS 1090521-96-2)
- 2-Chloro-7-methoxybenzo[d]oxazole (CAS 1202879-56-8)
- Nicotinic acid 3,4-dichloro-benzyl ester (CAS 824945-68-8)
- Sulfur Monochloride (CAS 10025-67-9)
- 2-((2-Methoxy-5-methylphenyl)amino)-2-oxo-1-phenylethyl 2-(methylthio)nicotinate (CAS 438610-09-4)
- 4-Cyclopropoxy-N1,N3,N3-trimethylisophthalamide (CAS 1243282-80-5)
- 3-Bromo-4-methoxy-5-methylaniline hydrochloride (CAS 1215205-12-1)
- Calcium 4-aminosalicylate Heptahydrate (CAS 133-15-3)
- 2-(4-Ethoxyphenyl)-1-(2-(3-phenyl-1,2,4-oxadiazol-5-yl)pyrrolidin-1-yl)ethan-1-one (CAS 1798634-33-9)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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