3-Chloro-2-methoxybenzenesulfonyl chloride CAS 847652-81-7
| CAS No. | 847652-81-7 |
| Molecular Formula | C7H6Cl2O3S |
| Molecular Weight | 241.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Chloro-2-methoxybenzenesulfonyl chloride (C7H6Cl2O3S) 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 241.09 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).
CATO supplies 3-Chloro-2-methoxybenzenesulfonyl chloride (CAS 847652-81-7), a certified reference material (molecular formula C7H6Cl2O3S, MW 241.09 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.
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.
Physical & Chemical Properties
| Molecular Formula | C7H6Cl2O3S |
| Molecular Weight | 241.09 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.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 3-Chloro-5-methoxybenzenesulfonyl chloride (CAS 1058740-21-8)
- 2-Chloro-3-methoxybenzenesulfonyl chloride (CAS 1261581-13-8)
- 2-Chloro-4-methoxybenzene-1-sulfonyl chloride (CAS 23094-94-2)
- 2-chloro-6-methoxybenzene-1-sulfonyl chloride (CAS 491850-54-5)
- 4-Chloro-2-methoxybenzene-1-sulfonyl chloride (CAS 612541-13-6)
- 4-Chloro-3-methoxybenzene-1-sulfonyl chloride (CAS 942199-60-2)
- 5-Chloro-2-methoxybenzenesulfonyl chloride (CAS 22952-32-5)
- 4-Chloro-N-(4-chlorophenyl)-1,3,5-triazin-2-amine (CAS 1107654-26-1)
Recommended Standards
- 3-Bromo-N,N-dimethylimidazo[1,2-a]pyrazin-8-amine (CAS 787590-55-0)
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- 3-Bromo-N,N-dimethylimidazo[1,2-a]pyrazin-5-amine (CAS 787590-56-1)
- 3-Bromo-1-ethyl-1H-pyrazolo[4,3-c]pyridin-4-amine (CAS 2485720-24-7)
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- Ethyl (3,5-di-tert-butyl-4-hydroxyphenylcarbonothioyl)carbamate (CAS 148204-54-0)
- 2-Bromo-3-hydroxybenzyl chloride (CAS 1260674-44-9)
- 1345AF 3-Azepan-1-yl-1-methyl-propylamine 876716-37-9 C10H22N2 (CAS 876716-37-9)
- 3-(4-bromobenzoyl)azetidine hydrochloride (CAS 1864074-80-5)
- 2-Ethyl-5,6-dimethyl-1H-imidazo[4,5-b]pyrazine (CAS 860722-35-6)
- Ranolazine Impurity 5 (CAS 1246816-00-1)
- 2-Amino-3-(bromomethyl)-6-(difluoromethyl)pyridin-4-ol (CAS 1806810-10-5)
- N-(3-Chloro-4-methoxyphenyl)-1-(3-chloro-4-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 890892-22-5)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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