3-(3,5-Dichlorophenoxy)benzenesulfonyl chloride CAS 885950-83-4
| CAS No. | 885950-83-4 |
| Molecular Formula | C12H7Cl3O3S |
| Molecular Weight | 337.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(3,5-Dichlorophenoxy)benzenesulfonyl chloride (CAS 885950-83-4), molecular formula C12H7Cl3O3S and molecular weight 337.61 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H7Cl3O3S, 3-(3,5-Dichlorophenoxy)benzenesulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 337.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C12H7Cl3O3S |
| Molecular Weight | 337.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorophenoxy Standards
- 3-(3,4-Dichlorophenoxy)benzenesulfonylchloride (CAS 885950-84-5)
- 4-(3,4-Dichlorophenoxy)benzenesulfonylchloride (CAS 501697-77-4)
- 4-(3,5-Dichlorophenoxy)benzene-1-sulfonyl chloride (CAS 501697-53-6)
- 4-(2,5-Dichlorophenoxy)-2-(methylsulfanyl)quinazoline (CAS 477845-81-1)
- N-[4-(2,4-Dichlorophenoxy)butyl]-2,5-dimethylaniline (CAS 356538-68-6)
- N-[4-(2,4-Dichlorophenoxy)butyl]-3,4-dimethylaniline (CAS 356538-55-1)
- 2-(2-(2,4-Dichlorophenoxy)ethyl)isoindoline-1,3-dione (CAS 138505-73-4)
- (2-(2,4-Dichlorophenoxy)acetyl)-L-asparticacid (CAS 35144-55-9)
Recommended Standards
- (2-Chloro-1,3-thiazol-5-yl)methyl N-(3,4-dichlorophenyl)carbamate (CAS 341967-59-7)
- [3-Chloro-5-(3,5-dichloro-phenyl)-isothiazol-4-yl]- carbamic acid methyl ester (CAS 1171922-02-3)
- N-(2-Thienylmethyl)-1-hexadecanamine (CAS 855956-94-4)
- N-benzyl-7-bromo-4-chloropyrrolo[2,1-f][1,2,4]triazin-2-amine (CAS 1936113-64-2)
- N-(Benzyloxy)-N-((3S,4R)-6-cyano-3-hydroxy-2,2-dimethylchroman-4-yl)acetamide (CAS 127408-30-4)
- 2-(2,4-Dichlorophenyl)-2-(methylamino)acetamide (CAS 1218404-06-8)
- Ibipinabant (CAS 362519-49-1)
- 3-Amino-2-hydroxy-N,N-dimethyl-6-(trifluoromethyl)benzamide (CAS 654683-32-6)
- N-(m-Tolyl)dibenzo[b,d]furan-4-amine (CAS 1609080-03-6)
- 2-(4-Chloro-2-(1-phenyl-1H-pyrazol-5-yl)phenoxy)ethyl acetate (CAS 141355-87-5)
- Tert-butyl ((1-isopropylpiperidin-3-yl)methyl)carbamate (CAS 1336910-17-8)
- Dimethyl 5-amino-3-methylthiophene-2,4-dicarboxylate (CAS 103765-33-9)
- 6-[(3-methoxyphenyl)methyl]-4-methyl-5h,6h-[1,2]diazolo[3,4-c]pyrazol-3-amine (CAS 1280804-28-5)
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