126766-74-3

Basic information

• Product Name: 5-phosphonobenzene-1,3-disulfonic acid
• Synonyms: 5-phosphonobenzene-1,3-disulfonic acid
• CAS NO: 126766-74-3
• Molecular Weight: 318.222
• Mol File: 126766-74-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 5-phosphonobenzene-1,3-disulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 5-phosphonobenzene-1,3-disulfonic acid(126766-74-3)
• EPA Substance Registry System: 5-phosphonobenzene-1,3-disulfonic acid(126766-74-3)

Safety Data

• Hazardous Substances Data: 126766-74-3(Hazardous Substances Data)

Upstream product

• 1571-33-1 phenylphosphonate 
• 831-59-4 1,3-benzenedisulfonic acid disodium salt 
• 36663-11-3 5-bromobenzene-1,3-disulfonic acid 
• 122-52-1 triethyl phosphite 

Relevant articles and documents

Synthesis of phosphonosulfonic acid building blocks as linkers for coordination polymers

Ten aromatic building blocks (8-11, 23-28) containing phosphonic and sulfonic acid groups within one molecule were synthesized. Twofold nucleophilic substitution starting from 1,2,4,5-tetrakis(bromomethyl)benzene (1) followed by hydrolysis gave building blocks 8-11. To obtain building blocks 23-28, the respective bromobenzenesulfonic acids 13, 16, 18-20 and 22 had to be synthesized first. Palladium-catalysed cross coupling with triethylphosphite followed by hydrolysis gave the desired building blocks with phosphonic and sulfonic acid groups. Building block 9 was successfully used as a linker for the synthesis of a new La-based CP with the composition [La2(H2L)1.5(H2O)4].