22326-31-4

Basic information

• Product Name: 5-Sulfoisophthalic acid
• Synonyms: 5-sulfobenzene-1,3-dicarboxylic acid;5-SULFOISOPHTHALIC ACID;5-SIPA;5-SULPHOISOPHTHALIC ACID;3-Benzenedicarboxylicacid,5-sulfo-1;5-Sulfo-1,3-benzenedicarboxylicacid;5-sulfo-3-benzenedicarboxylicacid;5-sulfo-benzene-3-dicarboxylicacid
• CAS NO: 22326-31-4
• Molecular Formula: C₈H₆O₇S
• Molecular Weight: 246.19
• EINECS: 244-912-9
• Product Categories: Organic acids
• Mol File: 22326-31-4.mol
• Article Data: 7

Chemical Properties

• Melting Point: 258 °C
• Boiling Point: 359.19°C (rough estimate)
• Flash Point: °C
• Appearance: /
• Density: 1.8097 (rough estimate)
• Refractive Index: 1.6550 (estimate)
• PKA: -1.37±0.30(Predicted)
• CAS DataBase Reference: 5-Sulfoisophthalic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Sulfoisophthalic acid(22326-31-4)
• EPA Substance Registry System: 5-Sulfoisophthalic acid(22326-31-4)

Safety Data

• Hazard Codes: C
• Hazardous Substances Data: 22326-31-4(Hazardous Substances Data)

Usage

General Description

5-Sulfoisophthalic acid, also known as 5-sulfonatoisophthalic acid, is a chemical compound with the molecular formula C8H6O7S. It is a derivative of isophthalic acid that contains a sulfonic acid group. 5-Sulfoisophthalic acid is commonly used as a building block for the synthesis of various polymers, especially sulfonated polyesters. It is also used as a catalyst in the synthesis of various organic compounds. 5-Sulfoisophthalic acid is notable for its strong acidic properties, making it useful in a wide range of industrial and research applications. Additionally, it is used as a stabilizer in the production of polyethylene terephthalate (PET) and other polyester polymers.

InChI:InChI=1/C8H6O7S/c9-7(10)4-1-5(8(11)12)3-6(2-4)16(13,14)15/h1-3H,(H,9,10)(H,11,12)(H,13,14,15)

Upstream product

• 121-91-5 isophthalic acid 
• 148065-78-5 5,5'-Dithiodiisophthalic acid 

Downstream Products

• 554-95-0 benzene-1,3,5-tricarboxylic acid 
• 88194-15-4 5-allyloxo-1,3-benzenediacarboxylic acid 
• 1403754-19-7 Cd(5-sulfo-1,3-benzenedicarboxylate)(4,4’-bis(1-imidazolyl)bibenzene) 

Relevant articles and documents

SALTS OF 5-SULFOISOPHTHALIC ACID AND METHOD OF MAKING SAME

This invention relates to methods for the production of various metal salts of 5-sulfoisophthalic acid including those where the metal cation is selected from the group consisting of silver (I), sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, barium, manganese (II), iron (II), cobalt (II), nickel (II), copper (I), copper (II), zinc, yttrium, and cadmium. The methods utilize a solvent system that comprises acetic acid or water or a mixture of both. The invention also encompasses the various metal salts of 5-sulfoisophthalic acid.

DIAMINIUM BIS-3,5-DICARBOXYBENZENSULFONATE AND TRI-DIAMINIUM BIS-3,5-DICARBOXYBENZENSULFONATE AND METHODS FOR PRODUCING SAME

A composition of matter comprising a diamine salt and sulfoisophthalic acid in a ratio other than one salt to one acid and a process for producing a diamine salt of sulfoisophthalic acid comprising generating a sulfoisophthalic acid and charging the sulfoisophthalic acid with diamine.

Naaladase inhibitors for treating amyotrophic lateral sclerosis

The present invention relates to pharmaceutical compositions and methods for treating amyotrophic lateral sclerosis using NAALADase inhibitors.