73348-44-4

Basic information

• Product Name: 5-broMothiophene-2-sulfinic acid
• Synonyms: 5-broMothiophene-2-sulfinic acid
• CAS NO: 73348-44-4
• Molecular Formula: C₄H₃BrO₃S₂
• Molecular Weight: 227.09942
• Mol File: 73348-44-4.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5-broMothiophene-2-sulfinic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 5-broMothiophene-2-sulfinic acid(73348-44-4)
• EPA Substance Registry System: 5-broMothiophene-2-sulfinic acid(73348-44-4)

Safety Data

• Hazardous Substances Data: 73348-44-4(Hazardous Substances Data)

Upstream product

• 1003-09-4 2-bromothiophene 
• 42824-16-8 pyridine-SO₃ complex 

Downstream Products

• 1416889-50-3 5-(4-ethoxyphenyl)thiophene-2-sulfonic acid 
• 780018-27-1 C₁₁H₁₀O₄S₂ 
• 1416438-59-9 C₁₂H₁₂O₄S₂ 

Relevant articles and documents

STUDY OF KINETICS AND MECHANISM OF SULFONATION OF THIOPHENE AND ITS DERIVATIVES BY COMPLEX COMPOUNDS OF SULFURIC ANHYDRIDE

By quantitavely studying the sulfonation of thiophene and its homologs by complexes of sulfuric anhydride with ethers, amides and trialkyl phosphates it was possible to determine kinetic and thermodynamic parameters of the process, to propose a SE2 type reaction mechanism and also to reveal a quantitative dependence of the rate constant of the sulfonation reaction of thiophene on the basicity of the complex-forming agent: The sulfonating activity of the complexes studied increses in the series - amides trialkyl phosphates ethers, which is the reverse of the increase in the basicity series of a donor.