4-(2-Chloroethyl)benzenesulfonic acid CAS 7296-73-3
| CAS No. | 7296-73-3 |
| Molecular Formula | C8H9ClO3S |
| Molecular Weight | 220.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(2-Chloroethyl)benzenesulfonic acid is closely related to a sulfone 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.
CATO supplies 4-(2-Chloroethyl)benzenesulfonic acid (CAS 7296-73-3), a certified reference material (molecular formula C8H9ClO3S, MW 220.67 g/mol) for analytical method development and quality control.
The molecular framework of 4-(2-Chloroethyl)benzenesulfonic acid (C8H9ClO3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(2-Chloroethyl)benzenesulfonic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9ClO3S |
| Molecular Weight | 220.67 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloroethyl Standards
- 2-Chloroethyl benzenesulfonate (CAS 16670-48-7)
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Recommended Standards
- 3-Methoxy-5-methylbenzenesulfonyl chloride (CAS 861560-21-6)
- 4-Chloro-3-methylphenyl methanesulfonate (CAS 90555-52-5)
- 3-Ethoxybenzene-1-sulfonyl chloride (CAS 69129-60-8)
- 1-(chloro(phenyl)methyl)-4-fluorobenzene (CAS 365-21-9)
- 4-(5-(Tetrahydrofuran-2-yl)-1,3,4-oxadiazol-2-yl)aniline (CAS 1416345-13-5)
- N-[4-Chloro-2-methoxy-5-(1-methylcyclopropyl)phenyl]acetamide (CAS 1629269-90-4)
- 2-Amino-4-(2-(trifluoromethoxy)phenyl)butanoic acid (CAS 1260642-70-3)
- N-(3-Aminophenyl)-2-(4-methylphenoxy)propanamide (CAS 79912-10-0)
- 3-Oxo-4-(4-methylphenyl)butanoyl chloride (CAS 1989983-07-4)
- 4-Bromo-3-iodo-1H-pyrazole (CAS 27258-14-6)
- 3-(propan-2-yl)azetidine hydrochloride (CAS 1423024-42-3)
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