(4-Methoxy-3-methylphenyl)methanesulfonyl chloride CAS 1194375-45-5
| CAS No. | 1194375-45-5 |
| Molecular Formula | C9H11ClO3S |
| Molecular Weight | 234.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (4-Methoxy-3-methylphenyl)methanesulfonyl chloride (C9H11ClO3S) 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 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 234.70 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies (4-Methoxy-3-methylphenyl)methanesulfonyl chloride (CAS 1194375-45-5), a certified reference material (molecular formula C9H11ClO3S, MW 234.70 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), (4-Methoxy-3-methylphenyl)methanesulfonyl 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 | C9H11ClO3S |
| Molecular Weight | 234.70 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.) | 1989 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 2-Methoxy-4,6-dimethylbenzene-1-sulfonyl chloride (CAS 1021373-11-4)
- 2-Methoxy-2-phenylethane-1-sulfonyl chloride (CAS 1785454-64-9)
- 2-Methoxy-3,5-dimethylbenzene-1-sulfonyl chloride (CAS 749268-53-9)
- 2-Methoxy-4,5-dimethylbenzenesulfonyl chloride (CAS 90416-52-7)
- 4-Methoxy-2,5-dimethylbenzenesulfonyl chloride (CAS 91179-12-3)
- 4-Methoxy-2,6-dimethylbenzenesulfonyl Chloride (CAS 55661-08-0)
- 4-Methoxy-3,5-dimethylbenzene-1-sulfonyl chloride (CAS 75157-75-4)
- 5-Methoxy-2,4-dimethylbenzenesulfonyl chloride (CAS 91179-11-2)
Recommended Standards
- 1-Cyclopentyl-1H-pyrazole-4-sulfonyl Chloride (CAS 1183317-55-6)
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- 5-Amino-2-chloro-N,N-dimethyl-benzenesulfonamide (CAS 10475-06-6)
- 5-(Chloromethyl)-2-methanesulfonyl-1-(prop-2-en-1-yl)-1h-imidazole (CAS 1221343-03-8)
- 3-methanesulfonylpropanoic acid (CAS 645-83-0)
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- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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