60634-74-4

Basic information

• Product Name: 1H-Imidazole-4-sulfonic acid
• Synonyms: 1H-Imidazole-4-sulfonic acid;1(3)H-Imidazol-4-sulfonsaeure;1(3)H-imidazole-4-sulfonic acid
• CAS NO: 60634-74-4
• Molecular Formula: C3H4N2O3S
• Molecular Weight: 148.142
• Mol File: 60634-74-4.mol
• Article Data: 4

Chemical Properties

• Density: 1.768±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 1H-Imidazole-4-sulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Imidazole-4-sulfonic acid(60634-74-4)
• EPA Substance Registry System: 1H-Imidazole-4-sulfonic acid(60634-74-4)

Safety Data

• Hazardous Substances Data: 60634-74-4(Hazardous Substances Data)

Usage

Physical form

white crystalline powder

Solubility

soluble in water

pKa value

1.54

Uses

reagent in organic synthesis, building block for pharmaceuticals and agrochemicals, production of dyes, resins, and pigments

Industrial applications

catalyst and stabilizer in chemical reactions, production of specialty chemicals, component in electrolyte formulations for fuel cells.

Upstream product

• 288-32-4 1H-imidazole 
• 616-47-7 1-methyl-1H-imidazole 
• 7790-94-5 chlorosulfonic acid 

Downstream Products

• 58767-51-4 imidazole-4-sulphonyl chloride 
• 2034-22-2 2,4,5-tribromo-1H-imidazole 
• 144-62-7 oxalic acid 
• 288-32-4 1H-imidazole 
• 7664-93-9 sulfuric acid 

Relevant articles and documents

Design and synthesis of an Fmoc-SPPS-compatible amino acid building block mimicking the transition state of phosphohistidine phosphatase

The synthesis of a sulfonamide-based transition-state (TS) analogue of enzymatic phosphohistidine dephosphorylation as an amino acid building block is presented, together with the proof-of-concept of its incorporation into peptides. Key features include f

SULFONATION OF SUBSTITUTED AZOLES WITH SULFUR TRIOXIDE IN DICHLOROETHANE

A novel method has been developed for the synthesis of sulfonic acids of five-membered heterocycles containing two heteroatoms, with a solution of sulfur trioxide in 1,2-dichloroethane.High yields of the required products are obtained, under conditions which are mild in comparison with those used in earlier methods.The mechanism of sulfonation is discussed, and some azole.SO3 complexes have been obtained and described.