Cas no 34732-09-7 (2,3,4-Trichlorobenzenesulfonyl chloride)

2,3,4-Trichlorobenzenesulfonyl chloride is a chlorinated aromatic sulfonyl chloride used primarily as an intermediate in organic synthesis. Its key advantages include high reactivity as a sulfonating agent, enabling the introduction of the sulfonyl functional group into target molecules. The presence of three chlorine atoms enhances its electrophilic character, making it useful in the preparation of sulfonamides, sulfonate esters, and other derivatives. This compound is particularly valued for its stability under controlled conditions and its compatibility with a range of reaction conditions. It serves as a versatile building block in pharmaceuticals, agrochemicals, and specialty chemicals, where precise functionalization is required. Proper handling is essential due to its moisture sensitivity.
2,3,4-Trichlorobenzenesulfonyl chloride structure
34732-09-7 structure
Product Name:2,3,4-Trichlorobenzenesulfonyl chloride
CAS No:34732-09-7
MF:C6H2Cl4O2S
MW:279.95587682724
MDL:MFCD00024871
CID:89096
PubChem ID:24884917
Update Time:2025-05-20

2,3,4-Trichlorobenzenesulfonyl chloride Chemical and Physical Properties

Names and Identifiers

    • 2,3,4-Trichlorobenzenesulfonyl chloride
    • 2,3,4-Trichlorobenzenesulphonyl chloride
    • 2,3,4-trichlorobenzene-1-sulfonyl chloride
    • 2,3,4,5,6-PENTACHLOROPHENYL 2,4-DICHLOROBENZOATE
    • 2,3,4-Trichlor-benzolsulfonylchlorid
    • 2,3,4-trichlorophenylsulfonyl chloride
    • Benzenesulfonyl chloride,2,3,4-trichloro
    • SCHEMBL788147
    • 2,3,4-trichlorobenzene sulfonyl chloride
    • UNII-9QI6W9Z13V
    • 34732-09-7
    • AKOS005139314
    • Benzenesulfonyl chloride, 2,3,4-trichloro-
    • FT-0609373
    • AKOS024319188
    • InChI=1/C6H2Cl4O2S/c7-3-1-2-4(13(10,11)12)6(9)5(3)8/h1-2H
    • Q21546953
    • 2,3,4-Trichlorobenzenesulfonyl chloride, 97%
    • 9QI6W9Z13V
    • MFCD00024871
    • CS-0204862
    • D97849
    • J-019734
    • NS00029721
    • EINECS 252-174-4
    • 2,3,4-trichlorobenzenesulfonylchloride
    • A6096
    • 2,3,4-trichlorobenzene-1-sulfonylchloride
    • 2,3,4-Trichloro-benzenesulfonyl chloride
    • DTXSID70188283
    • 2,3,4-Trichloro benzene sulfonyl chloride
    • JDAJYNHGBUXIKS-UHFFFAOYSA-
    • STR06595
    • DB-019652
    • MDL: MFCD00024871
    • Inchi: 1S/C6H2Cl4O2S/c7-3-1-2-4(13(10,11)12)6(9)5(3)8/h1-2H
    • InChI Key: JDAJYNHGBUXIKS-UHFFFAOYSA-N
    • SMILES: ClC1C(=C(C=CC=1S(=O)(=O)Cl)Cl)Cl
    • BRN: 2649436

Computed Properties

  • Exact Mass: 277.85300
  • Monoisotopic Mass: 277.852961
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 13
  • Rotatable Bond Count: 1
  • Complexity: 273
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: 3.8
  • Topological Polar Surface Area: 42.5

Experimental Properties

  • Color/Form: granule
  • Density: 1.728
  • Melting Point: 62-66?°C
  • Boiling Point: 349.9 °C at 760 mmHg
  • Flash Point: 165.4 °C
  • Refractive Index: 1.593
  • PSA: 42.52000
  • LogP: 4.65510
  • Solubility: Not determined
  • Sensitiveness: Moisture Sensitive

2,3,4-Trichlorobenzenesulfonyl chloride Security Information

  • Symbol: GHS05
  • Signal Word:Danger
  • Hazard Statement: H314
  • Warning Statement: P280-P305+P351+P338-P310
  • Hazardous Material transportation number:1759
  • WGK Germany:3
  • Hazard Category Code: 34
  • Safety Instruction: S26-S27-S36/37/39-S45-S30-S23-S22-S28
  • Hazardous Material Identification: C
  • HazardClass:8
  • PackingGroup:
  • Safety Term:8
  • Packing Group:II
  • Risk Phrases:R34
  • Packing Group:II
  • Hazard Level:8

2,3,4-Trichlorobenzenesulfonyl chloride Customs Data

  • HS CODE:2904909090
  • Customs Data:

    China Customs Code:

    2904909090

    Overview:

    2904909090 Sulfonation of other hydrocarbons\nitrification\Nitrosative derivative(Whether halogenated or not). VAT:17.0% Tax refund rate:9.0% Regulatory conditions:nothing MFN tariff:5.5% general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to

    Summary:

    HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

2,3,4-Trichlorobenzenesulfonyl chloride Pricemore >>

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2,3,4-Trichlorobenzenesulfonyl chloride Suppliers

Suzhou Senfeida Chemical Co., Ltd
Gold Member
Audited Supplier Audited Supplier
(CAS:34732-09-7)2,3,4-TRICHLOROBENZENESULFONYL CHLORIDE
Order Number:sfd14837
Stock Status:in Stock
Quantity:200kg
Purity:99.9%
Pricing Information Last Updated:Friday, 19 July 2024 14:37
Price ($):discuss personally
Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
Audited Supplier Audited Supplier
(CAS:34732-09-7)2,3,4-三氯苯磺酰氯
Order Number:LE1748527
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:35
Price ($):discuss personally

Additional information on 2,3,4-Trichlorobenzenesulfonyl chloride

Recent Advances in the Application of 2,3,4-Trichlorobenzenesulfonyl Chloride (CAS: 34732-09-7) in Chemical Biology and Pharmaceutical Research

2,3,4-Trichlorobenzenesulfonyl chloride (CAS: 34732-09-7) is a key intermediate in the synthesis of various sulfonamide derivatives, which have shown significant potential in pharmaceutical and agrochemical applications. Recent studies have highlighted its role in the development of novel bioactive compounds, particularly in the context of antimicrobial and anticancer agents. This research brief aims to summarize the latest findings related to this compound, focusing on its synthetic utility, mechanism of action, and potential therapeutic applications.

One of the most notable advancements in the use of 2,3,4-trichlorobenzenesulfonyl chloride is its incorporation into the synthesis of sulfonamide-based inhibitors targeting bacterial enzymes. A 2023 study published in the Journal of Medicinal Chemistry demonstrated that derivatives of this compound exhibit potent inhibitory activity against carbonic anhydrases from pathogenic bacteria, such as Mycobacterium tuberculosis. The study utilized X-ray crystallography to elucidate the binding modes of these inhibitors, providing valuable insights for the design of next-generation antibiotics.

In addition to its antimicrobial properties, 2,3,4-trichlorobenzenesulfonyl chloride has been explored as a building block for anticancer agents. Research published in Bioorganic & Medicinal Chemistry Letters in early 2024 reported the synthesis of sulfonamide hybrids that selectively target tumor-associated carbonic anhydrase isoforms. These hybrids demonstrated promising cytotoxicity against breast and lung cancer cell lines, with minimal effects on normal cells. The study emphasized the importance of the trichlorophenyl moiety in enhancing the selectivity and potency of these compounds.

Another emerging application of 2,3,4-trichlorobenzenesulfonyl chloride is in the development of fluorescent probes for biological imaging. A recent study in Chemical Communications described the synthesis of sulfonamide-based probes that selectively bind to amyloid aggregates, which are implicated in neurodegenerative diseases like Alzheimer's. The probes exhibited high sensitivity and specificity, making them valuable tools for early diagnosis and drug screening.

Despite these advancements, challenges remain in optimizing the pharmacokinetic properties of sulfonamide derivatives derived from 2,3,4-trichlorobenzenesulfonyl chloride. Issues such as poor solubility and metabolic instability have been reported in preclinical studies. However, ongoing research is addressing these limitations through structural modifications and formulation strategies. For instance, a 2024 patent application disclosed nanoparticle-based delivery systems designed to improve the bioavailability of these compounds.

In conclusion, 2,3,4-trichlorobenzenesulfonyl chloride continues to be a versatile and valuable intermediate in chemical biology and pharmaceutical research. Its applications span antimicrobial and anticancer drug development, as well as diagnostic tools for neurodegenerative diseases. Future research should focus on overcoming the current limitations and exploring new therapeutic targets for this compound and its derivatives.

Recommended suppliers
Suzhou Senfeida Chemical Co., Ltd
(CAS:34732-09-7)2,3,4-TRICHLOROBENZENESULFONYL CHLORIDE
sfd14837
Purity:99.9%
Quantity:200kg
Price ($):Inquiry
Email
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:34732-09-7)2,3,4-三氯苯磺酰氯
LE1748527
Purity:99%
Quantity:25KG,200KG,1000KG
Price ($):Inquiry
Email