5-chloro-6-methoxypyridine-3-sulfonyl chloride CAS 1261785-22-1
| CAS No. | 1261785-22-1 |
| Molecular Formula | C6H5Cl2NO3S |
| Molecular Weight | 242.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-chloro-6-methoxypyridine-3-sulfonyl chloride.
CATO supplies 5-chloro-6-methoxypyridine-3-sulfonyl chloride (CAS 1261785-22-1), a certified reference material (molecular formula C6H5Cl2NO3S, MW 242.08 g/mol) for analytical method development and quality control.
5-chloro-6-methoxypyridine-3-sulfonyl chloride (C6H5Cl2NO3S) contains an amide group, 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, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 5-chloro-6-methoxypyridine-3-sulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5Cl2NO3S |
| Molecular Weight | 242.08 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related chloro Standards
- 2-Chloro-6-methoxypyridine-3-sulfonyl chloride (CAS 1208081-26-8)
- 2-Chloro-6-methoxypyridine-4-sulfonyl chloride (CAS 1261468-23-8)
- 6-chloro-2-methoxypyridine-3-sulfonyl chloride (CAS 1261663-47-1)
- 5-chloro-3-(4-chlorophenyl)-2-fluoropyridine (CAS 1364677-73-5)
- 6-Chloro-4-methoxypyridine-2-sulfonyl chloride (CAS 1393530-75-0)
- 4-Chloro-6-methoxypyridine-2-sulfonyl chloride (CAS 1393545-46-4)
- 4-Chloro-3-cyclopropyl-1,2-oxazole-5-sulfonyl chloride (CAS 1955541-07-7)
- 4-Chloro-2-methoxypyridine-3-sulfonyl chloride (CAS 219715-42-1)
Recommended Standards
- 2-(Benzyloxy)-5-methylphenylboronic Acid (CAS 127972-17-2)
- (2-((3-Methylbenzyl)oxy)phenyl)boronic acid (CAS 1311163-93-5)
- (3-(Benzyloxy)-5-methylphenyl)boronic acid (CAS 1256355-61-9)
- (2-((4-Methylbenzyl)oxy)phenyl)boronic acid (CAS 1311182-72-5)
- 1-(4-bromophenyl)-2-[(2-hydroxyethyl)amino]ethan-1-ol (CAS 1368090-12-3)
- 4-Methyl-2-(trifluoromethyl)pyridine (CAS 1620-79-7)
- 1-Cyclohexyl-3-nitrobenzene (CAS 33176-38-4)
- 2-Propenoic acid, ethyl ester, polymer with (3-chloropropyl)trimethoxysilane and 1,2-ethanediamine (CAS 67674-63-9)
- Pregnenolone sulfate (CAS 1247-64-9)
- Ethyl 4-chloro-1,3-dimethyl-1H-indazole-5-carboxylate (CAS 887586-91-6)
- 3-Fluoro-2-(2-fluorophenyl)-5-(trifluoromethyl)pyridine (CAS 1214348-16-9)
- 4-Bromo-2-(2,6-dichlorophenyl)-5-(phenylamino)pyridazin-3(2H)-one (CAS 830326-02-8)
- 2-(2-Aminoethoxy)benzonitrile (CAS 57276-65-0)
- Palmitoyl Tripeptide-1 HCl (CAS 2757690-14-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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