4'-(2,4-Dichlorophenyl)-1'-methyldispiro[chromane-3,3'-pyrrolidine-2',3''-indoline]-2'',4-dione CAS 1212332-83-6
| CAS No. | 1212332-83-6 |
| Molecular Formula | C26H20Cl2N2O3 |
| Molecular Weight | 479.35 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.
4'-(2,4-Dichlorophenyl)-1'-methyldispiro[chromane-3,3'-pyrrolidine-2',3''-indoline]-2'',4-dione (CAS 1212332-83-6), molecular formula C26H20Cl2N2O3 and molecular weight 479.35 g/mol, is a CATO reference standard with documented purity and traceability.
4'-(2,4-Dichlorophenyl)-1'-methyldispiro[chromane-3,3'-pyrrolidine-2',3''-indoline]-2'',4-dione (C26H20Cl2N2O3) contains a steroid 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. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C26H20Cl2N2O3 |
| Molecular Weight | 479.35 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorophenyl Standards
- 4'-(3,4-Dichlorophenyl)-1'-methyl-1'',2,2'',4-tetrahydrodispiro[1-benzopyran-3,3'-pyrrolidine-2',3''-indole]-2'',4-dione (CAS 1797910-69-0)
- (5-((3,5-Dichlorophenyl)thio)-4-isopropyl-1-(3-(pyridin-2-yl)propyl)-1H-imidazol-2-yl)methyl carbamate (CAS 178980-23-9)
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- (3Z)-3-{[(2,4-dichlorophenyl)methoxy]imino}-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-2-one (CAS 477853-37-5)
- (3Z)-3-{[(2,6-dichlorophenyl)methoxy]imino}-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-indol-2-one (CAS 477853-39-7)
- (3Z)-3-{[(2,4-dichlorophenyl)methoxy]imino}-1-[(2,4-dichlorophenyl)methyl]-2,3-dihydro-1H-indol-2-one (CAS 303996-94-3)
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- (3Z)-3-{[(2,6-dichlorophenyl)methoxy]imino}-1-[(3,4-dichlorophenyl)methyl]-2,3-dihydro-1H-indol-2-one (CAS 303996-89-6)
Recommended Standards
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- 1-(3,4-Dichlorophenyl)butan-2-one (CAS 213627-27-1)
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- 3-(Ethoxycarbonyl)-1-(2-methyl-4-nitrophenyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264046-61-8)
- n-(3-Fluoro-4-methylphenyl)prop-2-enamide (CAS 312752-91-3)
- 2,7-Dimethylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS 820245-84-9)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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