5-(2,4-Dichlorophenyl)-2-methyl-3-(4-oxo-4H-chromen-3-yl)tetrahydro-4H-pyrrolo[3,4-d]isoxazole-4,6(5H)-dione CAS 318949-33-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 318949-33-6 |
| Molecular Formula | C21H14Cl2N2O5 |
| Molecular Weight | 445.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(2,4-Dichlorophenyl)-2-methyl-3-(4-oxo-4H-chromen-3-yl)tetrahydro-4H-pyrrolo[3,4-d]isoxazole-4,6(5H)-dione (CAS 318949-33-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H14Cl2N2O5. Molecular weight: 445.25 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H14Cl2N2O5 |
| Molecular Weight | 445.25 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 |
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Recommended Standards
- (5-(1,3-Dioxolan-2-yl)thiophen-2-yl)tributylstannane (CAS 349616-56-4)
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- Chlorophenol Red (sodium) (CAS 123333-64-2)
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- [2,4'-Bipyridine]-5-carbaldehyde (CAS 834881-87-7)
- 4-(4-Chlorophenyl)thiophen-2-amine (CAS 79652-98-5)
- 1-(Chroman-6-yl)ethan-1-amine (CAS 919007-96-8)
- 2,4-Difluoro-3-chlorobenzoic Acid (CAS 154257-75-7)
- 2-(Hydroxyiminomethyl)-1-methylpyridinium Methane Sulfonate (CAS 154-97-2)
- Peptide Impurity 64 (CAS CATO-CPTD788964)
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