4-Methoxy-3-nitrobenzenesulfonyl Chloride CAS 22117-79-9
| CAS No. | 22117-79-9 |
| Molecular Formula | C7H6ClNO5S |
| Molecular Weight | 251.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Methoxy-3-nitrobenzenesulfonyl 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.
4-Methoxy-3-nitrobenzenesulfonyl Chloride (CAS 22117-79-9) is a high-purity analytical reference standard with the molecular formula C7H6ClNO5S and a molecular weight of 251.64 g/mol.
Based on its molecular formula C7H6ClNO5S, 4-Methoxy-3-nitrobenzenesulfonyl Chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C7H6ClNO5S |
| Molecular Weight | 251.64 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, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 2-methoxy-3-nitrobenzene-1-sulfonyl chloride (CAS 1261587-04-5)
- 3-Methoxy-4-nitrobenzene-1-sulfonyl Chloride (CAS 1261646-30-3)
- 3-Methoxy-5-nitrobenzene-1-sulfonyl chloride (CAS 1261748-48-4)
- 3-Methoxy-2-nitrobenzene-1-sulfonyl chloride (CAS 1261762-38-2)
- 4-Methoxy-2-nitrobenzenesulfonyl chloride (CAS 18092-54-1)
- 2-Methoxy-4-nitrobenzenesulfonyl chloride (CAS 21320-91-2)
- 2-Methoxy-5-nitrobenzene-1-sulfonyl chloride (CAS 81118-92-5)
- 3-Methoxy-4-(octyloxy)aniline (CAS 106989-66-6)
Recommended Standards
- 4-Chloro-2-(pyrrolidin-1-yl)-6-(trifluoromethyl)pyrimidine (CAS 915922-37-1)
- 5-(4-Chloro-3-fluorophenyl)nicotinic acid (CAS 893740-56-2)
- 3-Chloro-4-methyl-5-nitrobenzenesulfonic acid (CAS 68189-28-6)
- Furosemide Impurity 50 (CAS 64174-54-5)
- Ethyl 4-formyl-5-methyl-1H-pyrrole-2-carboxylate (CAS 25907-30-6)
- 2-(Difluoromethyl)-4-hydroxy-5-methylpyridine-3-methanol (CAS 1805201-55-1)
- 8-Bromo-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 1016841-45-4)
- (2E)-1-{4-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-3-[(4-fluorophenyl)amino]prop-2-en-1-one (CAS 477888-40-7)
- Ethyl 7-bromo-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate (CAS 1820685-82-2)
- 3-Azabicyclo[4.1.0]heptan-4-one (CAS 78503-68-1)
- 6-Chloro-N-ethyl-N-phenylpyrimidin-4-amine (CAS 405931-48-8)
- 4-Chloro-6,7-dimethylenedioxyquinazoline (CAS 52791-05-6)
- 1-(Octahydro-[1,4]oxazino[2,3-d]azepin-4(4aH)-yl)ethan-1-one (CAS 1422058-89-6)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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