3-Formyl-5-methylbenzenesulfonyl chloride CAS 1393546-56-9
| CAS No. | 1393546-56-9 |
| Molecular Formula | C8H7ClO3S |
| Molecular Weight | 218.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 218.66 g/mol gives 3-Formyl-5-methylbenzenesulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Formyl-5-methylbenzenesulfonyl chloride (CAS 1393546-56-9), molecular formula C8H7ClO3S and molecular weight 218.66 g/mol, is a CATO reference standard with documented purity and traceability.
3-Formyl-5-methylbenzenesulfonyl chloride (C8H7ClO3S) 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, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Formyl-5-methylbenzenesulfonyl 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 | 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.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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- N-(4-chloro-5-cyanothiazol-2-yl)-4-methylbenzamide (CAS 866156-02-7)
- 2-(Methylamino)-1-(pyrrolidin-1-yl)ethanone hydrochloride (CAS 1176419-88-7)
- 3-((2,3-Difluorophenoxy)methyl)benzaldehyde (CAS 1443355-39-2)
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