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4-Chloro-2-fluorobenzenesulfonyl chloride

CAS No.
141337-26-0
Chemical Name:
4-Chloro-2-fluorobenzenesulfonyl chloride
Synonyms
4-chloro benzene sulfonul chloride;2-fluoro-4-Chlorobenzenesulfonyl chloride;4-Chlor0-2-Fluorobenzen sulfonyl chloride;4-Chloro-2-fluorobenzenesulfonyl chloride;4-CHLORO-2-FLUOROBENZENESULPHONYL CHLORIDE;2-Fluoro,4-chloro benzene sulfonul chloride;4-Choro-2-fluorobenzene-1-sulfonyl chloride;Benzenesulfonyl chloride, 4-chloro-2-fluoro-;4-chloro-2-fluorobenzene-1-sulfonyl chloride;4-Chloro-2-fluorobenzenesulphonylchloride97%
CBNumber:
CB3293603
Molecular Formula:
C6H3Cl2FO2S
Molecular Weight:
229.06
MDL Number:
MFCD03094560
MOL File:
141337-26-0.mol
MSDS File:
SDS
Last updated:2026-09-12 18:51:58

4-Chloro-2-fluorobenzenesulfonyl chloride Properties

Melting point 34-38 °C(lit.)
Boiling point 257.4±20.0℃ (760 Torr)
Density 1.610±0.06 g/cm3 (20 ºC 760 Torr)
Flash point >230 °F
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
form crystals
color White
Sensitive Moisture Sensitive
InChI 1S/C6H3Cl2FO2S/c7-4-1-2-6(5(9)3-4)12(8,10)11/h1-3H
InChIKey ZFZRENUEJCOCRE-UHFFFAOYSA-N
SMILES Fc1cc(Cl)ccc1S(Cl)(=O)=O
CAS DataBase Reference 141337-26-0(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)
GHS05
Signal word  Danger
Hazard statements  H314-H318
Precautionary statements  P260h-P301+P330+P331-P303+P361+P353-P405-P501a-P280-P305+P351+P338-P310
PPE Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 3261 8/PG 2
WGK Germany  3
Hazard Note  Corrosive
HazardClass  8
PackingGroup  II
HS Code  2904990090
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Skin Corr. 1B
NFPA 704
1
3 0

4-Chloro-2-fluorobenzenesulfonyl chloride price More Price(38)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 555983 4-Chloro-2-fluorobenzenesulfonyl chloride 97% 141337-26-0 1g $30 2023-06-20 Buy
Usbiological 267571 4-Chloro-2-fluorobenzenesulfonyl chloride Asreported 141337-26-0 2g $388 2026-06-03 Buy
Usbiological 267571 4-Chloro-2-fluorobenzenesulfonyl chloride Asreported 141337-26-0 5g $603 2026-06-03 Buy
Usbiological 267571 4-Chloro-2-fluorobenzenesulfonyl chloride Asreported 141337-26-0 10g $864 2026-06-03 Buy
Activate Scientific AS48672 4-Chloro-2-fluorobenzene-1-sulfonyl chloride 98% 141337-26-0 1g $44 2026-06-04 Buy
Product number Packaging Price Buy
555983 1g $30 Buy
267571 2g $388 Buy
267571 5g $603 Buy
267571 10g $864 Buy
AS48672 1g $44 Buy

4-Chloro-2-fluorobenzenesulfonyl chloride Chemical Properties, Uses, Production

Uses

4-Chloro-2-fluorobenzenesulfonyl chloride (4-chloro-2-fluorobenzene-1-sulfonyl chloride) may be used to synthesize [1-(4-chloro-2-fluorophenylsulfonyl) piperidin-4-yl] diphenylmethanol.

Synthesis

4-Chloro-2-fluoroaniline

57946-56-2

4-CHLORO-2-FLUOROBENZENESULFONYL CHLORIDE

141337-26-0

General procedure for the synthesis of 4-chloro-2-fluorobenzenesulfonyl chloride from 4-chloro-2-fluoroaniline: 1. 4-Chloro-2-fluoroaniline (22.90 g, 151 mmol) was dissolved in 120 mL of acetic acid and 80 mL of concentrated hydrochloric acid was added with stirring. 2. the reaction mixture was cooled to 0 °C and a solution of sodium nitrite (27.2 g, 0.4 mol) dissolved in 40 mL of water was added over 10 minutes. 3. The reaction mixture was stirred at 0 °C for 30 min. 4. in another flask, cuprous chloride (500 mg) was dissolved in 200 mL of acetic acid. 5. The flask was cooled to 0 °C and sulfur dioxide gas was passed into the solution for 40 min. 6. The diazonium salt solution prepared in step 3 was slowly added to the solution containing cuprous chloride and sulfur dioxide over a period of 20 minutes, at which time vigorous gas escape was observed. 7. After the addition, the ice bath is removed and the reaction mixture is allowed to gradually warm to room temperature. 8. The reaction mixture was poured into 500 g of crushed ice and the precipitated solid product was collected, washed and dried to give 26.1 g (73% yield) of 4-chloro-2-fluorobenzenesulfonyl chloride.

References

[1] Patent: US2003/232859, 2003, A1. Location in patent: Page 56
[2] Journal of Medicinal Chemistry, 2014, vol. 57, # 22, p. 9539 - 9553

57946-56-2
141337-26-0
Synthesis of 4-Chloro-2-fluorobenzenesulfonyl chloride from 4-Chloro-2-fluoroaniline

4-Chloro-2-fluorobenzenesulfonyl chloride Preparation Products And Raw materials

Global Suppliers ( 109)
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J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
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Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Nanjing Chemlin Chemical Co., Ltd 025-83697070 13770331960 info@chemlin.com.cn China 16305 64

View Latest Price from 4-Chloro-2-fluorobenzenesulfonyl chloride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-CHLORO-2-FLUOROBENZENESULFONYL CHLORIDE pictures 2020-02-01 4-CHLORO-2-FLUOROBENZENESULFONYL CHLORIDE
141337-26-0
$3.00 1KG 98% 100KG Career Henan Chemical Co
4-CHLORO-2-FLUOROBENZENESULPHONYL CHLORIDE 4-Chloro-2-fluorobenzenesulphonyl chloride 97% 4-Chloro-2-fluorobenzenesulphonylchloride97% 4-Chloro-2-fluorobenzenesulfonyl chloride 97% 2-fluoro-4-Chlorobenzenesulfonyl chloride Benzenesulfonyl chloride, 4-chloro-2-fluoro- (9CI) 2-Fluoro,4-chloro benzene sulfonul chloride 4-chloro-2-fluorobenzene-1-sulfonyl chloride 4-Chlor0-2-Fluorobenzen sulfonyl chloride 4-chloro benzene sulfonul chloride Benzenesulfonyl chloride, 4-chloro-2-fluoro- 4-Choro-2-fluorobenzene-1-sulfonyl chloride 4-Chloro-2-fluorobenzenesulfonyl chloride 141337-26-0 Organic Building Blocks Sulfonyl Halides Sulfur Compounds Building Blocks SULFONYLHALIDE Aromatic Halides (substituted) Organic Building Blocks Sulfonyl Halides Sulfur Compounds