2-Phenoxybenzene sulfonyl chloride CAS 2688-85-9
| CAS No. | 2688-85-9 |
| Molecular Formula | C12H9ClO3S |
| Molecular Weight | 268.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Phenoxybenzene sulfonyl chloride (CAS 2688-85-9), molecular formula C12H9ClO3S and molecular weight 268.72 g/mol, is a CATO reference standard with documented purity and traceability.
2-Phenoxybenzene sulfonyl chloride (C12H9ClO3S) contains a sulfone 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, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
As a certified reference material (CRM), 2-Phenoxybenzene sulfonyl chloride 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 | C12H9ClO3S |
| Molecular Weight | 268.72 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Phenoxybenzene Standards
- 4-Phenoxybenzene-1-sulfonamide (CAS 123045-62-5)
- 2-[(4-phenoxybenzene)amido]benzoic acid (CAS 186891-10-1)
- 5-Phenoxybenzene-1,3-diol (CAS 666180-48-9)
- 1-Methyl-4-phenoxybenzene (CAS 1706-12-3)
- 3-Phenoxybenzene-1-carboximidamide hydrochloride (CAS 109941-13-1)
- 4-phenoxybenzene-1-carboximidamide hydrochloride (CAS 124501-08-2)
Recommended Standards
- 2-Chloro-N'-(2-(1,1-dioxidotetrahydrothiophen-3-yl)acetyl)acetohydrazide (CAS 869716-08-5)
- 3-(2-Methylpyrimidin-4-yl)benzenesulfonyl chloride (CAS 465514-07-2)
- 2-Chloro-5-(2-nitrophenethyl)thiazole (CAS 861209-92-9)
- 3-[(4-Chlorobenzyl)oxy]-2-thiophenecarboxylic acid (CAS 339009-58-4)
- (S)-1-(tert-butoxycarbonyl)-3-propylpyrrolidine-3-carboxylic acid (CAS 1476721-31-9)
- N-(3,5-dimethylphenyl)-2-(4-methoxyphenyl)quinoline-4-carboxamide (CAS 332157-20-7)
- 3-Acetyl-5-isopropylpyrrolidine-2,4-dione (CAS 707-84-6)
- 6-Chloro-2,7-dimethylquinoline (CAS 1935104-48-5)
- (4-Methoxy-2-methylphenyl)methanamine (CAS 21883-14-7)
- N-(piperidin-4-yl)thiophene-3-carboxamide (CAS 1097781-87-7)
- Lambda-cyhalothric Acid (CAS 72748-35-7)
- (3S,4S)-1-Benzyl-4-(2-methylpropyl)pyrrolidine-3-carboxylic acid (CAS 261896-48-4)
- Methyl 2,5-dimethylbenzo[d]oxazole-7-carboxylate (CAS 1221792-61-5)
- Neuropeptide Y (13-36) (porcine) (CAS 113662-54-7)
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