Methyl 3-(chlorosulfonyl)-5-methylbenzoate CAS 1154149-31-1
| CAS No. | 1154149-31-1 |
| Molecular Formula | C9H9ClO4S |
| Molecular Weight | 248.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-(chlorosulfonyl)-5-methylbenzoate (C9H9ClO4S) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Methyl 3-(chlorosulfonyl)-5-methylbenzoate (CAS 1154149-31-1), a certified reference material (molecular formula C9H9ClO4S, MW 248.68 g/mol) for analytical method development and quality control.
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), Methyl 3-(chlorosulfonyl)-5-methylbenzoate 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 | C9H9ClO4S |
| Molecular Weight | 248.68 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 Methyl Standards
- 4-(Chlorosulfonyl)phenyl propionate (CAS 1029717-21-2)
- Ethyl 2-(chlorosulfonyl)benzoate (CAS 103008-54-4)
- 4-Chlorosulfonyl-benzoic acid ethyl ester (CAS 10486-51-8)
- Methyl 2-(chlorosulfonyl)-5-methylbenzoate (CAS 1153230-09-1)
- 4-Methyl-2-chlorosulfonyl-benzoic acid methyl ester, 97% (CAS 1188087-56-0)
- Methyl 2-(chlorosulfonyl)-3-methylbenzoate (CAS 126535-26-0)
- Methyl 4-((chlorosulfonyl)methyl)benzoate (CAS 130047-14-2)
- 4-[2-(Chlorosulfonyl)ethyl]benzoic acid (CAS 1314939-34-8)
Recommended Standards
- 2-(4-Chlorophenyl)-1-(2-fluorophenyl)ethan-1-one (CAS 1183199-32-7)
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- 2-(4-Chlorophenyl)-1-(3-fluorophenyl)ethanone (CAS 1183554-70-2)
- 2-Chloro-3-methyl-4-(methylsulfonyl)benzoic acid (CAS 106904-09-0)
- 2-(7-Methylimidazo[1,2-a]pyrimidin-2-yl)ethan-1-amine (CAS 1217274-07-1)
- n-(4-(n,n-Diethylsulfamoyl)phenyl)acetamide (CAS 2080-32-2)
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- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
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