5-Methyl-2-(propan-2-yloxy)benzene-1-sulfonyl chloride CAS 187471-30-3
| CAS No. | 187471-30-3 |
| Molecular Formula | C10H13ClO3S |
| Molecular Weight | 248.73 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.
5-Methyl-2-(propan-2-yloxy)benzene-1-sulfonyl chloride (CAS 187471-30-3), molecular formula C10H13ClO3S and molecular weight 248.73 g/mol, is a CATO reference standard with documented purity and traceability.
5-Methyl-2-(propan-2-yloxy)benzene-1-sulfonyl chloride (C10H13ClO3S) 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, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H13ClO3S |
| Molecular Weight | 248.73 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.) | 2010 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2-Methyl-4-(propan-2-yloxy)benzene-1-sulfonyl chloride (CAS 1016512-29-0)
- 4-Methyl-1-[4-(propan-2-yl)phenyl]-2-sulfanyl-4,5-dihydro-1h-imidazol-5-one (CAS 1008283-53-1)
- n-[4-(propan-2-yl)phenyl]morpholine-4-carboxamide (CAS 349139-26-0)
- 2-(propan-2-yloxy)-6-(trifluoromethyl)pyridine-3-carboxylic acid (CAS 1506745-64-7)
- 3-[1-(propan-2-yl)-1H-pyrazol-4-yl]-7-oxa-2-azaspiro[3.5]nonan-1-one (CAS 2044838-01-7)
- 3-Methyl-1-(propan-2-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole (CAS 2068065-34-7)
- 2-[4-(propan-2-yl)phenyl]-1,3-thiazole-4-carboxylic acid (CAS 115311-26-7)
- 2-Oxo-1-[4-(propan-2-yl)phenyl]pyrrolidine-3-carboxylic acid (CAS 1017473-49-2)
Recommended Standards
- tert-Butyl (2-chloro-5-methylthiazol-4-yl)carbamate (CAS 1823913-82-1)
- 2-Methoxy-3-phenylpropane-1-sulfonyl chloride (CAS 1895659-24-1)
- 3-(3-Chlorophenyl)-1-(2-thienyl)-2-propen-1-one (CAS 18003-31-1)
- (2E)-2-(1,3-benzothiazol-2-yl)-4-chloro-3-methylbut-2-enenitrile (CAS 735342-48-0)
- 4-(1H-Benzo[d]imidazol-2-yl)quinoline (CAS 31704-11-7)
- (4-Methyl-6-(trifluoromethyl)pyrimidin-2-yl)methanamine (CAS 936940-59-9)
- (3,5-Dichloro-4-methoxyphenyl)boronic acid (CAS 175883-61-1)
- 1-({[(tert-Butoxy)carbonyl]amino}methyl)-3,3-difluorocyclobutane-1-carboxylic acid (CAS 1363382-41-5)
- 5-Amino-1-(2-methoxyphenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 443113-88-0)
- 4-(Bis(4-(9H-carbazol-9-yl)phenyl)amino)benzaldehyde (CAS 943784-69-8)
- 2-(5-Chlorothiophen-2-yl)-N-methylethan-1-amine (CAS 1247455-37-3)
- 1-(Pyrrolidin-1-yl)cyclopropane-1-carboxylic acid (CAS 1451040-52-0)
- 1-(3-Hydroxyadamantan-1-yl)azepan-2-one (CAS 1134899-21-0)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com