121-63-1

Basic information

• Product Name: 4,4'-Bis(chlorosulfonyl)diphenyl ether
• Synonyms: 4,4’-oxybis-benzenesulfonylchlorid;4,4’-oxydi-benzenesulfonylchlorid;4,4’-oxydibenzenesulfonylchloride;4,4'-OXYBIS(BENZENESULFONYL CHLORIDE);(Diphenyl ether)-4,4-disulphonyl chloride;4,4-Oxybis(benzenesulphonyl chloride);OBSC;4,4'-BIS(Chlorsoulfonyl)Diphenyl Ether
• CAS NO: 121-63-1
• Molecular Formula: C12H8Cl2O5S2
• Molecular Weight: 367.22
• EINECS: 204-488-8
• Product Categories: Diphenyl Ethers (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research
• Mol File: 121-63-1.mol
• Article Data: 2

Chemical Properties

• Melting Point: 124-127°C
• Boiling Point: 471.8 °C at 760 mmHg
• Flash Point: 239.1 °C
• Appearance: /
• Density: 1.573 g/cm³
• Storage Temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
• Solubility: DMSO, Ethyl Acetate (Slightly)
• Sensitive: Moisture Sensitive
• Stability: Moisture Sensitive
• BRN: 2169540
• CAS DataBase Reference: 4,4'-Bis(chlorosulfonyl)diphenyl ether(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-Bis(chlorosulfonyl)diphenyl ether(121-63-1)
• EPA Substance Registry System: 4,4'-Bis(chlorosulfonyl)diphenyl ether(121-63-1)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 36/37/39-27-26
• RIDADR: 3261
• TSCA: T
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 121-63-1(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 121-63-1 differently. You can refer to the following data:
1. 4,4'-Bis(chlorosulfonyl)diphenyl ether can be used in organic synthesis, pharmaceutical, also is a plasticizer. It Is agent intermediates of OBSH foaming.
2. 4,4’-Oxydibenzenesulfonyl Chloride is useful as an intermediate for blowing agents for rubber or resin.

Upstream product

• 101-84-8 diphenylether 
• 7790-94-5 chlorosulfonic acid 

Downstream Products

• 7218-44-2 4,4'-oxy-bis-benzenesulfonic acid bis-benzenesulfonylamide 
• 17527-79-6 4-(4-sulfanylphenoxy)thiophenol 
• 80-51-3 diphenylether-4,4'-disulfonyl hydrazide 
• 300406-81-9 4,4'-oxy-bis-benzenesulfonic acid bis-(4-chloro-phenyl ester) 
• 1096-17-9 4,4'-oxy-bis-benzenesulfonic acid bis-methylamide 
• 86971-54-2 Bis[(E)-p-(styrylsulfonyl)phenyl] ether 
• 86971-55-3 Bis<(E)-p-<(p-chlorostyryl)sulfonyl>phenyl> ether 
• 90286-91-2 C₂₄H₁₈F₂N₂O₅S₂ 
• 110863-52-0 bis<4-phenyl> ether 
• 31033-05-3 C₁₂H₈O₇S₂^(2-)*2Na⁽¹⁺⁾ 
• 90286-95-6 C₂₆H₂₄N₂O₇S₂ 
• 35370-99-1 bis-(4-methylsulfanyl-phenyl)-ether 
• 87298-98-4 bis-(4-carboxymethylsulfanyl-phenyl)-ether 
• 10195-67-2 4,4'-Bis-(sulfonylsemicarbazido)-diphenylether 

Relevant articles and documents

Method for preparing high-purity 4,4'-oxybisbenzensulfonyl chloride

The invention discloses a method for preparing high-purity 4,4'-oxybisbenzensulfonyl chloride. The method includes the following steps that (1) concentrated sulfuric acid is dropwise added into diphenyl ether at the temperature of 60 DEG C and the negative pressure, the mixture is fully reacted at the temperature of 130 DEG C to 140 DEG C after the concentrated sulfuric acid is dropwise added, the reaction is completed, and a sulfonic acid mixture is prepared; (2) an organic solvent is added into the sulfonic acid mixture at the temperature of 0 DEG C to 30 DEG C, the pH value of a system is adjusted to be 7 to 9 with alkali, solid-liquid separation is carried out, and diphenyl ether disulfonate is obtained; (3) the diphenyl ether disulfonate is added into acid, the mixture is fully reacted, water is removed after reacting, and a mixed product is obtained; (4) phosphorus oxychloride is dropwise added into the mixed product at the temperature of 80 DEG C or above, the mixture is fully reacted after the temperature of 100 DEG C to 105 DEG C after the phosphorus oxychloride is dropwise added, a reaction product is obtained after reacting, the reaction product is washed, and the 4,4'-oxybisbenzensulfonyl chloride is obtained. OBSC prepared with the method is narrow in melting range, high in purity and whiteness degree and capable of allowing a downstream product foaming agent OBSH to have the advantages of being high in gas-forming amount, narrow in gas-forming temperature range and high in purity and whiteness degree.