4-(Difluoromethyl)-5-hydroxy-6-methoxypyridine-2-sulfonyl chloride CAS 1805447-40-8
| CAS No. | 1805447-40-8 |
| Molecular Formula | C7H6ClF2NO4S |
| Molecular Weight | 273.64 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 4-(Difluoromethyl)-5-hydroxy-6-methoxypyridine-2-sulfonyl chloride.
CATO supplies 4-(Difluoromethyl)-5-hydroxy-6-methoxypyridine-2-sulfonyl chloride (CAS 1805447-40-8), a certified reference material (molecular formula C7H6ClF2NO4S, MW 273.64 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H6ClF2NO4S, 4-(Difluoromethyl)-5-hydroxy-6-methoxypyridine-2-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 273.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C7H6ClF2NO4S |
| Molecular Weight | 273.64 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Difluoromethyl Standards
- 4-(Difluoromethyl)-5-hydroxy-6-methoxypyridine-3-sulfonyl chloride (CAS 1804860-20-5)
- 4-(Difluoromethyl)-5-hydroxy-2-methoxypyridine-3-sulfonyl chloride (CAS 1804860-28-3)
- 2-(Difluoromethyl)-6-hydroxy-5-methoxypyridine-3-sulfonyl chloride (CAS 1805198-14-4)
- 4-(Difluoromethyl)-3-hydroxy-5-methoxypyridine-2-sulfonyl chloride (CAS 1805198-27-9)
- 2-(Difluoromethyl)-5-hydroxy-6-methoxypyridine-3-sulfonyl chloride (CAS 1805530-51-1)
- 4-(Difluoromethyl)-6-hydroxy-2-methoxypyridine-3-sulfonyl chloride (CAS 1805533-05-4)
- 2-(Difluoromethyl)-3-hydroxy-4-methoxypyridine-5-sulfonyl chloride (CAS 1805609-79-3)
- 2-(Difluoromethyl)-3-hydroxy-6-methoxypyridine-5-sulfonyl chloride (CAS 1806936-59-3)
Recommended Standards
- 4-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]phenol (CAS 161949-56-0)
- 2-(Difluoromethyl)-4-hydroxy-3-methoxypyridine-5-sulfonyl chloride (CAS 1806936-63-9)
- 1-(4-Chloro-3-(trifluoromethyl)phenyl)-3-oxocyclobutanecarbonitrile (CAS 1432048-96-8)
- 2-(Difluoromethyl)-5-hydroxy-3-methoxypyridine-4-sulfonyl chloride (CAS 1806936-71-9)
- 2-Amino-5-(trifluoromethoxy)benzamide (CAS 869298-96-4)
- N-(2-(Pyridin-4-yl)ethyl)aniline (CAS 28683-44-5)
- 1-Propanamine, 3-(isotridecyloxy)- (CAS 50977-10-1)
- 1-Iodo-2,5-dimethoxy-4-methylbenzene (CAS 75056-76-7)
- N-methyl-2-(pyrrolidin-1-ylmethyl)-1,2,3,4-tetrahydronaphthalen-2-amine (CAS 885951-06-4)
- 2-(2-Acetamidothiazol-4-yl)-N-(3-acetylphenyl)acetamide (CAS 921843-64-3)
- 1,3-Dibromo-5-chloro-2-fluorobenzene (CAS 1805525-99-8)
- 2-(Imidazo[1,2-a]pyridin-6-yl)acetic acid (CAS 1488389-22-5)
- 1,3,3-Trimethyl-2-((1E,3E)-5-((E)-1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl)-3H-indol-1-ium perchlorate 81666-87-7 (CAS 81666-87-7)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com