2-Chloro-4,5-dimethoxybenzenesulfonamide CAS 1342859-02-2
| CAS No. | 1342859-02-2 |
| Molecular Formula | C8H10ClNO4S |
| Molecular Weight | 251.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Chloro-4,5-dimethoxybenzenesulfonamide (C8H10ClNO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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 251.69 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).
2-Chloro-4,5-dimethoxybenzenesulfonamide (CAS 1342859-02-2) is a high-purity analytical reference standard with the molecular formula C8H10ClNO4S and a molecular weight of 251.69 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Chloro-4,5-dimethoxybenzenesulfonamide 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 | C8H10ClNO4S |
| Molecular Weight | 251.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; 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.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 5-(Acetamidomethyl)-1-methyl-1h-pyrazole-4-sulfonyl chloride (CAS 1365939-89-4)
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- 3-Chlorobenzo[b]thieno[3,4-f][1,4]oxazepin-10(9H)-one (CAS 70438-17-4)
- 5-Cyanonaphthalene-1-sulfonyl chloride (CAS 115596-33-3)
- 2-Amino-N-(2,5-dimethoxyphenyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 440088-43-7)
- 1-Isopropyl-3,6-dimethyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 914206-71-6)
- 3-Iodo-1-methyl-1H-pyrazolo[4,3-b]pyridine (CAS 1354954-40-7)
- N,N-diallylpiperidine-4-carboxamide hydrochloride (CAS 1220039-15-5)
- 2-(Difluoromethyl)-3-fluoro-4-methylpyridine-5-acetonitrile (CAS 1805464-94-1)
- Hexakis (2,3,6-tri-O-methyl)-α-cyclodextrin (CAS 68715-56-0)
- N-but-3-ynyl-2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindoline-4-carboxamide (CAS 2761410-18-6)
- 6-Methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole (CAS 955979-12-1)
- 3-(2-bromoethyl)-5,5-dimethylimidazolidine-2,4-dione (CAS 13272-29-2)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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