2-Chloro-5-propanoylbenzene-1-sulfonyl chloride CAS 1152589-92-8
| CAS No. | 1152589-92-8 |
| Molecular Formula | C9H8Cl2O3S |
| Molecular Weight | 267.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 267.13 g/mol gives 2-Chloro-5-propanoylbenzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Chloro-5-propanoylbenzene-1-sulfonyl chloride (CAS 1152589-92-8), a certified reference material (molecular formula C9H8Cl2O3S, MW 267.13 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H8Cl2O3S, 2-Chloro-5-propanoylbenzene-1-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 267.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C9H8Cl2O3S |
| Molecular Weight | 267.13 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.) | 1989 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 7-chloro-2-methyl-2,3-dihydro-1-benzofuran-5-sulfonyl chloride (CAS 1334146-20-1)
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Recommended Standards
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