N-(But-3-yn-1-yl)-2,4-dichloro-5-methylbenzenesulfonamide CAS 1351622-51-9
| CAS No. | 1351622-51-9 |
| Molecular Formula | C11H11Cl2NO2S |
| Molecular Weight | 292.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(But-3-yn-1-yl)-2,4-dichloro-5-methylbenzenesulfonamide (CAS 1351622-51-9), molecular formula C11H11Cl2NO2S and molecular weight 292.18 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, N-(But-3-yn-1-yl)-2,4-dichloro-5-methylbenzenesulfonamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 292.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures N-(But-3-yn-1-yl)-2,4-dichloro-5-methylbenzenesulfonamide 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 | C11H11Cl2NO2S |
| Molecular Weight | 292.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- N-methyl-3-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxy)propan-1-amine (CAS 1346697-32-2)
- 3-((4-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)amino)propan-1-ol (CAS 1352414-61-9)
- N,N-Dimethyl-2-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxy)ethanamine (CAS 1346697-29-7)
- 2,3',5'-Trifluoro-4'-(trifluoromethyl)-[1,1'-biphenyl]-4-ol (CAS 1353578-66-1)
- 3-Amino-1-(4-chlorophenyl)-6-(dimethylamino)-1H,4H-pyrazolo[3,4-d][1,3]oxazin-4-one (CAS 250713-83-8)
- 2-Propenoic acid, polymer with 1-ethenyl-2-pyrrolidinone (CAS 28062-44-4)
- 1-((2,5-Dimethoxyphenyl)sulfonyl)-4-(2-fluorophenyl)piperazine (CAS 681844-72-4)
- 3-Chloro-9H-pyrido[2,3-b]indol-5-ol (CAS 1005498-50-9)
- 1-Cinnamyl-4-(phenylsulfonyl)piperazine (CAS 5264-21-1)
- Diethyl 2,5-di(1H-imidazol-1-yl)terephthalate (CAS 1942879-47-1)
- 1-Benzyl-3-(2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 2246852-97-9)
- 2-(Chloromethyl)-4-(difluoromethyl)-5-hydroxypyridine-3-acetonitrile (CAS 1805618-28-3)
- 4-(2-(Trimethoxysilyl)ethyl)benzenesulfonyl chloride (CAS 126519-89-9)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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