3-((4-Chlorophenyl)(4-hydroxy-3-methoxybenzyl)amino)benzo[d]isothiazole 1,1-dioxide CAS 591242-71-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 591242-71-6 |
| Molecular Formula | C21H17ClN2O4S |
| Molecular Weight | 428.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-((4-Chlorophenyl)(4-hydroxy-3-methoxybenzyl)amino)benzo[d]isothiazole 1,1-dioxide (CAS 591242-71-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H17ClN2O4S. Molecular weight: 428.89 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H17ClN2O4S |
| Molecular Weight | 428.89 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 3-{1-[2-(4-chlorophenyl)acetyl]piperidin-4-yl}-4-[(4-fluorophenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775426-69-1)
- {4-[(4-chlorophenyl)sulfanyl]-3-nitrophenyl}methyl N-(3-methylphenyl)carbamate (CAS 320424-15-5)
- N-(4-(4-chlorophenyl)thiazol-2-yl)-2-((3-(trifluoromethyl)phenyl)thio)acetamide (CAS 338957-63-4)
- 4-(3-(2-Chlorophenyl)-1,2,4-oxadiazol-5-yl)-2-(3,4-dimethylphenyl)phthalazin-1(2H)-one (CAS 478045-66-8)
- 4-(3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)-2-(3,4-dimethylphenyl)phthalazin-1(2H)-one (CAS 478045-68-0)
- 4-[3-(3-Chlorophenyl)-1,2,4-oxadiazol-5-yl]-2-(3,4-dimethylphenyl)-1,2-dihydrophthalazin-1-one (CAS 478045-69-1)
- 8-Benzyl-4-[2-(4-chlorophenyl)acetyl]-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-90-5)
- (E)-2-((4-chlorophenyl)thio)-N'-(4-((4-fluorobenzyl)oxy)benzylidene)acetohydrazide (CAS 331461-73-5)
Recommended Standards
- {4-[(4-methylphenyl)sulfanyl]-3-nitrophenyl}methyl N-(4-chlorophenyl)carbamate (CAS 320424-08-6)
- Methyl (S)-2-(4-(4-chlorophenyl)-2-formyl-3,9-dimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate (CAS 916493-81-7)
- N-{9-acetyl-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3,5,7,12,14-hexaen-13-yl}-2-chlorobenzene-1-sulfonamide (CAS 866157-27-9)
- 2-(2-((S)-1-((S)-2-Amino-3-methylbutanoyl)pyrrolidine-2-carboxamido)acetamido)acetic acid (CAS 53356-54-0)
- 8-bromo-5-chloroquinolin-2-amine (CAS 1536689-50-5)
- Urapidil Impurity 48 (CAS CATO-C4X-192448)
- Etomidate Impurity 52 (CAS CATO-C4X-188452)
- N1-Isopropyl-N2-(3-(2-oxopiperidin-1-yl)phenyl)oxalamide (CAS 941982-78-1)
- 5-Methoxypyrimidin-2(1H)-one (CAS 16290-93-0)
- Delta-Sleep Inducing Peptide (CAS 62568-57-4)
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