4-nitrophenyl dichloro(sulfanylidene)phosphinite CAS 4225-51-8
| CAS No. | 4225-51-8 |
| Molecular Formula | C6H4Cl2NO3PS |
| Molecular Weight | 272.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-nitrophenyl dichloro(sulfanylidene)phosphinite is closely related to an amide group, a sulfone group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-nitrophenyl dichloro(sulfanylidene)phosphinite (CAS 4225-51-8), molecular formula C6H4Cl2NO3PS and molecular weight 272.05 g/mol, is a CATO reference standard with documented purity and traceability.
4-nitrophenyl dichloro(sulfanylidene)phosphinite (C6H4Cl2NO3PS) contains an amide group, a sulfone group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4-nitrophenyl dichloro(sulfanylidene)phosphinite 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 | C6H4Cl2NO3PS |
| Molecular Weight | 272.05 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 3-(((Benzyloxy)carbonyl)amino)-3-(4-chlorophenyl)propanoic acid (CAS 773867-63-3)
- 1-(5-Fluoro-2-isobutoxyphenyl)ethan-1-one (CAS 135901-90-5)
- (R)-phosphoric acid mono-[2-amino-2-(3-octyl-phenylcarbamoyl)-ethyl] ester (CAS 449173-19-7)
- Ethyl 2-methyl-4-(2-thienyl)-1h-pyrrole-3-carboxylate (CAS 1105195-63-8)
- 4-Methyl-2-(trimethylsilyl)pyridine (CAS 19854-23-0)
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