7,9-Dichloro-2,5-bis(4-methoxyphenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine CAS 303059-68-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303059-68-9 |
| Molecular Formula | C24H20Cl2N2O3 |
| Molecular Weight | 455.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7,9-Dichloro-2,5-bis(4-methoxyphenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 303059-68-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C24H20Cl2N2O3. Molecular weight: 455.33 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C24H20Cl2N2O3 |
| Molecular Weight | 455.33 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
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- 2,2-Dichloro-N-(3,5-diiodophenyl)acetamide (CAS 1196501-25-3)
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- 2,4-Dichloro-5-(n-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)sulfamoyl)benzoic acid (CAS 380347-78-4)
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Recommended Standards
- 8-Bromo-2-(methylthio)-4-((4-phenoxyphenyl)amino)pyrido[4,3-d]pyrimidin-5(6H)-one (CAS 1300611-33-9)
- Avanafil Impurity 21 (CAS CATO-C4X-111821)
- MAleimido-3,5-disuccinimidyl isophthalate (CAS 1257094-24-8)
- 2-[3-(4-methoxyphenyl)prop-2-enamido]benzoic acid (CAS 697235-51-1)
- 6-Chloro-4H-1,3-benzodioxine-8-carbaldehyde (CAS 63944-31-0)
- 2-Bromo-5-nitropyridin-4-amine (CAS 84487-15-0)
- Sodium 8-hydroxynaphthalene-1,6-disulfonate (CAS 83732-80-3)
- N-Allyl-2,6-dimethoxy-5-(methylthio)pyrimidin-4-amine (CAS 89587-77-9)
- n-(1-(Furan-2-yl)propan-2-yl)isobutyramide (CAS 1235118-81-6)
- Peptide Impurity 70 TFA Salt (CAS CATO-CPTD788570)
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