4-Chloro-n-[2-(difluoromethoxy)phenyl]-3-nitrobenzene-1-sulfonamide CAS 749920-49-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 749920-49-8 |
| Molecular Formula | C13H9ClF2N2O5S |
| Molecular Weight | 378.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-n-[2-(difluoromethoxy)phenyl]-3-nitrobenzene-1-sulfonamide (CAS 749920-49-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C13H9ClF2N2O5S. Molecular weight: 378.74 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C13H9ClF2N2O5S |
| Molecular Weight | 378.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 1-(2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)amino)ethyl)-2,4-dioxohexahydropyrimidine-5-carboximidamide (CAS 341966-22-1)
- 2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-1-oxo-1,2-dihydroisoquinoline-4-carbonitrile (CAS 303151-89-5)
- 4-(1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-indol-3-yl)-1,2-dihydro-3H-pyrazol-3-one (CAS 303152-88-7)
- N-(3-Chloro-4-fluorophenyl)-N-(7-fluoro-6-nitroquinazolin-4-yl)acetamide (CAS 1632286-05-5)
- 2-(3-Chloro-2-hydroxyphenyl)-5-hydroxy-3,7,8-trimethoxy-4H-chromen-4-one (CAS 23363-64-6)
- 1-((2-Chloro-4-nitrophenyl)amino)anthracene-9,10-dione (CAS 62322-93-4)
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- {6-[4-(2-Chloro-pyrimidin-4-yl)-phenyl]-4-trifluoromethyl-pyridin-2-yl}-dimethyl-amine (CAS 1311278-60-0)
Recommended Standards
- Methyl 2-((4-amino-5-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)pyrimidin-2-yl)thio)acetate (CAS 1823184-37-7)
- 6-Benzoyl-2-(4-chlorophenyl)-5-(trifluoromethyl)-2,3-dihydropyridazin-3-one (CAS 478032-30-3)
- 3-Allyl-2-((2-chloro-6-fluorobenzyl)thio)-6-(trifluoromethyl)pyrimidin-4(3H)-one (CAS 866143-19-3)
- 2-Amino-N-butylbenzenesulfonamide (CAS 436095-51-1)
- 1,3-Dichloro-6-ethylisoquinoline (CAS 1150271-19-4)
- 3,7-Dioxa-9-azabicyclo[3.3.1]nonane hydrochloride (CAS 1127237-89-1)
- [4-[2-(Dimethylamino)ethoxy]phenyl](4-hydroxyphenyl)methanone (CAS 173163-13-8)
- Ticagrelor impurity 25 (CAS CATO-C4X-109325)
- (17α)-17-Hydroxy-3-oxoandrost-4-ene-17-carboxylic acid (CAS 633-29-4)
- Cholecystokinin Octapeptide free acid (desulfated) (H-2075.0001) (CAS 103974-46-5)
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 13829788188 / jacky.chen@cato-chem.com