2-Methoxybenzenesulfonyl chloride CAS 10130-87-7
| CAS No. | 10130-87-7 |
| Molecular Formula | C7H7ClO3S |
| Molecular Weight | 206.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Methoxybenzenesulfonyl chloride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Methoxybenzenesulfonyl chloride (CAS 10130-87-7), molecular formula C7H7ClO3S and molecular weight 206.65 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Methoxybenzenesulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 2-Methoxybenzenesulfonyl 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 | C7H7ClO3S |
| Molecular Weight | 206.65 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.) | 1959 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methoxybenzenesulfonyl Standards
- 3-Methoxybenzenesulfonyl chloride (CAS 10130-74-2)
- 4-Methoxybenzenesulfonyl chloride 98-68-0 Benzenesulfonyl chloride, 4-methoxy- Benzenesulfonyl chloride, p-methoxy- NSC-403292 NSC403292 p-Anisylsulfonyl chloride p-Methoxybenzenesulfonyl chloride p-Methoxyphenylsulfonyl chloride (CAS 98-68-0)
- 4-Methoxybenzenesulfonyl isocyanate (CAS 7018-76-0)
- 2-(3-Methoxybenzenesulfonyl)acetic Acid (CAS 3938-00-9)
- 3-Ethyl-4-methoxybenzenesulfonyl chloride (CAS 84911-01-3)
- 5-Ethyl-2-methoxybenzenesulfonyl chloride (CAS 88040-88-4)
- 3-Acetyl-5-methoxybenzenesulfonyl chloride (CAS 85276-42-2)
- 1-(4-Methoxybenzenesulfonyl)pyrazolidin-3-one (CAS 477850-52-5)
Recommended Standards
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- 4-Chloro-4'-Fluorobiphenyl (CAS 398-22-1)
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