11-(2,5-Dichlorophenyl)-2,3-dimethoxy-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one CAS 685108-02-5
| CAS No. | 685108-02-5 |
| Molecular Formula | C22H19Cl2N3O3 |
| Molecular Weight | 444.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 444.31 g/mol gives 11-(2,5-Dichlorophenyl)-2,3-dimethoxy-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
11-(2,5-Dichlorophenyl)-2,3-dimethoxy-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one (CAS 685108-02-5), molecular formula C22H19Cl2N3O3 and molecular weight 444.31 g/mol, is a CATO reference standard with documented purity and traceability.
11-(2,5-Dichlorophenyl)-2,3-dimethoxy-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one (C22H19Cl2N3O3) 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. 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), 11-(2,5-Dichlorophenyl)-2,3-dimethoxy-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one 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 | C22H19Cl2N3O3 |
| Molecular Weight | 444.31 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichlorophenyl Standards
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Recommended Standards
- (E)-2-(4-(2-(5-(1-(3,5-DICHLOROPYRIDIN-4-YL)ETHOXY)-1H-INDAZOL-3-YL)VINYL)-1H-PYRAZOL-1-YL)ETHANOL (CAS 1254473-85-2)
- 2-Iodo-9,9-diphenyl-9H-fluorene (CAS 768398-90-9)
- LY 2874455 (CAS 1254473-64-7)
- Bis(3-aminophenyl)(3,5-bis(trifluoromethyl)phenyl)phosphineoxide (CAS 299176-31-1)
- 5,6-Dihydro-5-methyluridine (CAS 23067-10-9)
- Tert-butyl 2-(dihydrofuran-3(2H)-ylidene)hydrazine-1-carboxylate (CAS 158020-60-1)
- Methyl 4-(5-methyl-1h-1,2,3,4-tetrazol-1-yl)benzoate (CAS 932978-27-3)
- Mosapride Impurity 3 (CAS CATO-C4X-10443)
- (E)-Caffeic acid propyl ester (CAS 142234-81-9)
- 3-Amino-5-chloropicolinamide (CAS 27330-34-3)
- 4-Aminoquinolin-2-ol (CAS 1823281-83-9)
- Betamethasone impurity 101 (CAS CATO-C4X-1437101)
- 2-Bromo-6-(dimethylamino)benzonitrile (CAS 1365271-61-9)
- Insulin Detemir (CAS 169148-63-4)
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