3-Acetylbenzenesulfonyl chloride CAS 73035-16-2
| CAS No. | 73035-16-2 |
| Molecular Formula | C8H7ClO3S |
| Molecular Weight | 218.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Acetylbenzenesulfonyl chloride (C8H7ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 218.66 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Acetylbenzenesulfonyl chloride (CAS 73035-16-2) is a high-purity analytical reference standard with the molecular formula C8H7ClO3S and a molecular weight of 218.66 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H7ClO3S |
| Molecular Weight | 218.66 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Acetylbenzenesulfonyl Standards
- 4-acetylbenzenesulfonyl chloride (CAS 1788-10-9)
- 2-(4-acetylbenzenesulfonyl)acetamide (CAS 1266854-36-7)
- 1-(3-Acetylbenzenesulfonyl)piperidine-4-carboxylic acid (CAS 790270-87-0)
- 1-(4-Acetylbenzenesulfonyl)piperidine-4-carboxylic acid (CAS 781626-93-5)
- 1-[4-(3-acetylbenzenesulfonyl)piperazin-1-yl]-2-chloroethan-1-one (CAS 923721-75-9)
- 1-[4-(4-acetylbenzenesulfonyl)piperazin-1-yl]-2-chloroethan-1-one (CAS 879319-23-0)
Recommended Standards
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- 2-Oxo-2-phenyl-ethanesulfonyl chloride (CAS 23289-99-8)
- 4-Chloro-2-(methylsulfonyl)benzaldehyde (CAS 849035-76-3)
- Methyl 4-oxothiochromane-7-carboxylate (CAS 361371-71-3)
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- 5-(Bromomethyl)-2-methylbenzoic acid (CAS 72985-19-4)
- 2-Chloro-n-[5-(dimethylsulfamoyl)-2-methoxyphenyl]acetamide (CAS 749906-93-2)
- 4-(3-Bromophenyl)-2,6-diphenylpyridine (CAS 83993-81-1)
- 2-(Bromomethyl)furan (CAS 4437-18-7)
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