5-(3-Chlorophenyl)-2-(4-chlorophenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine CAS 302914-18-7
| CAS No. | 302914-18-7 |
| Molecular Formula | C22H16Cl2N2O |
| Molecular Weight | 395.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 5-(3-Chlorophenyl)-2-(4-chlorophenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 302914-18-7), a certified reference material (molecular formula C22H16Cl2N2O, MW 395.28 g/mol) for analytical method development and quality control.
5-(3-Chlorophenyl)-2-(4-chlorophenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (C22H16Cl2N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
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.
Physical & Chemical Properties
| Molecular Formula | C22H16Cl2N2O |
| Molecular Weight | 395.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
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Recommended Standards
- 3-(3,5-Dichlorophenyl)-2-(2-phenylethyl)-3,4-dihydroquinazolin-4-one (CAS 329080-17-3)
- N-(1-(3,4-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methylpiperazine-1-carboxamide (CAS 338755-44-5)
- 2-Benzyl-4-((2,6-dichlorobenzyl)oxy)quinazoline (CAS 400078-69-5)
- Capivasertib Impurity 46 (CAS CATO-C4X-331246)
- (S,E)-5-(5-Isopropoxypyridin-3-yl)-N-methylpent-4-en-2-amine (CAS 252870-53-4)
- 2-Amino-2-(3-methylphenyl)acetic Acid Hydrochloride (CAS 1072449-62-7)
- 4-Bromo-1-methyl-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid (CAS 2342586-79-0)
- 287484-38-2 Boc-Lys(Z)-OH-|A-15N L-Lysine-|A-15N1, |AN-tBoc, |AN-Cbz derivative N|A-(tert-Butoxycarbonyl)-N|A-(carbobenzyloxy)-L-lysine-|A-15N (CAS 287484-38-2)
- Ethyl 6-bromobenzo[d]isoxazole-3-carboxylate (CAS 651780-27-7)
- 2-(Bromomethyl)-4-(difluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridine (CAS 1804775-09-4)
- 1-(Cyclohexanecarbonyl)piperidine-4-carboxylic acid (CAS 436093-17-3)
- 2-Methyl-4-phenylquinolin-7-ol (CAS 92855-40-8)
- n-[4-(2-amino-1,3-thiazol-4-yl)phenyl]benzamide (CAS 299441-52-4)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
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