3-Chlorophenyl-4'-nitrophenyl ether CAS 2303-23-3
| CAS No. | 2303-23-3 |
| Molecular Formula | C24H14Cl2N2O5 |
| Molecular Weight | 481.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Chlorophenyl-4'-nitrophenyl ether 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.
3-Chlorophenyl-4'-nitrophenyl ether (CAS 2303-23-3), molecular formula C24H14Cl2N2O5 and molecular weight 481.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Chlorophenyl-4'-nitrophenyl ether (C24H14Cl2N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 481.28 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C24H14Cl2N2O5 |
| Molecular Weight | 481.28 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 1-[2-(benzyloxy)-5-fluorophenyl]-2-bromo-3-[4-(trifluoromethyl)phenyl]propan-1-one (CAS 298186-76-2)
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- Lufenuron EP Impurity G (CAS CATO-C4X-28873)
- methyl 3-methyl-2-[3-(1,1,2,2,3,3,4,4,4-nonafluorobutylsulfonyloxy)isoxazol-5-yl]butanoate (CAS 2378053-95-1)
- 2,2'-((3,5-Bis(decyloxy)phenyl)azanediyl)diacetic acid (CAS 153125-17-8)
- (4R,5R)-5-(2,4-Difluorophenyl)-4-methyl-5-(1H-1,2,4-triazol-1-ylmethyl)-2-oxazolidinone-d3 (CAS 1330176-89-0)
- 1-(1,3,4-thiadiazol-2-ylthio)acetone (CAS 1000932-13-7)
- 4-(1-(3-Fluorophenyl)ethyl)-1H-imidazole (CAS 945407-01-2)
- 2-(4-Methoxy-3-methylphenyl)-1,3-dimethylimidazolidine (CAS 83521-98-6)
- Racecadotril EP Impurity H (CAS 141437-88-9)
- Carpipramine DiHCl (CAS 7075-03-8)
- (R)-1-((Benzyloxy)carbonyl)piperidine-2-carboxylic acid (CAS 28697-09-8)
- N-(4,6-dichloro-5-nitropyrimidin-2-yl)acetamide (CAS 56145-04-1)
- Neuropeptide Y (free acid) (human, rat) trifluoroacetate salt (CAS 99575-89-0)
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