3-(Methylsulfonyl)benzenesulfonyl Chloride CAS 5335-40-0
| CAS No. | 5335-40-0 |
| Molecular Formula | C7H7ClO4S2 |
| Molecular Weight | 254.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-(Methylsulfonyl)benzenesulfonyl Chloride (CAS 5335-40-0), a certified reference material (molecular formula C7H7ClO4S2, MW 254.71 g/mol) for analytical method development and quality control.
Structurally, 3-(Methylsulfonyl)benzenesulfonyl Chloride (C7H7ClO4S2) 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 254.71 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7ClO4S2 |
| Molecular Weight | 254.71 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, water |
| 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.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Methylsulfonyl Standards
- 2-(Methylsulfonyl)benzenesulfonyl chloride (CAS 89265-35-0)
- 4-(Methylsulfonyl)benzenesulfonyl chloride, 97% (CAS 82964-91-8)
- 1-(4-(Methylsulfonyl)benzyl)piperazine (CAS 1082399-22-1)
- 1-(4-(Methylsulfonyl)phenyl)piperidin-4-amine (CAS 1154947-36-0)
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- 5-(Methylsulfonyl)-2-(piperidin-1-yl)aniline (CAS 849035-90-1)
Recommended Standards
- 3-(4-Chlorophenyl)-5-phenyl-1H-pyrazole (CAS 30152-32-0)
- 3-[(2-chloroacetamido)methyl]-N,N-dimethylbenzamide (CAS 2031259-37-5)
- 3-(4-Chlorophenyl)-1-phenyl-1H-pyrazole (CAS 33064-19-6)
- 3-[benzyl(chloroacetyl)amino]propanamide (CAS 941133-97-7)
- Ethyl 2,3-dibromo-5-(difluoromethoxy)phenylacetate (CAS 1804936-33-1)
- Ethyl Allyl(2-oxoethyl)carbamate (CAS 128740-03-4)
- (S)-1-(2-(((2-Aminoethyl)(isopropyl)amino)methyl)pyrrolidin-1-yl)ethanone (CAS 1354016-08-2)
- 3-(tert-Butoxy)-2-(tert-butyl)-4-cyclopropoxypyridine (CAS 1243372-65-7)
- 4-(3,5-Dimethyl-1h-pyrazol-1-yl)phenol (CAS 51011-27-9)
- 4-Ethoxy-2-(methylthio)aniline (CAS 647843-13-8)
- RMC6236 Intermediate 28 (CAS CATO-CIM-103916)
- 8-Methyl-8-azabicyclo[3.2.1]octan-1-ol (CAS 60723-27-5)
- (4-Oxo-piperidin-1-yl)-acetic acid hydrochloride (CAS 1185300-59-7)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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