21668-77-9

Basic information

• Product Name: Eprodisate
• Synonyms: 1,3-PROPANEDISULFONIC ACID;1,3-PROPANEDISULFONIC ACID DISODIUM SALT;DISODIUM PROPANE-1,3-DISULFONATE;DISODIUM 1,3-PROPANEDISULFONATE;DISODIUM 1,3-PROPANEDISULPHONATE;1,3-Propanedisulphonic acid disodium salt;1,3-PROPANEDISULFONIC ACID 70%*AQUEOUS S OLUTION;1,3-Propanedisulfonic acid, 70% w/v aq. soln.
• CAS NO: 21668-77-9
• Molecular Formula: C₃H₈O₆S₂
• Molecular Weight: 204.22
• Product Categories: Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds
• Mol File: 21668-77-9.mol
• Article Data: 3

Chemical Properties

• Melting Point: 120-124 ºC
• Boiling Point: 157 °C(Press: 1.4 Torr)
• Appearance: /
• Density: 1.33
• Refractive Index: 1.4220
• PKA: 1.21±0.50(Predicted)
• CAS DataBase Reference: Eprodisate(CAS DataBase Reference)
• NIST Chemistry Reference: Eprodisate(21668-77-9)
• EPA Substance Registry System: Eprodisate(21668-77-9)

Safety Data

• Hazard Codes: Xi,C
• Statements: 36/37/38-34-20/21/22
• Safety Statements: 26-36-45-36/37/39-27
• RIDADR: 3265
• WGK Germany: 3
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 21668-77-9(Hazardous Substances Data)

Usage

Uses

Treatment of secondary (AA) amyloidosis.

InChI:InChI=1/C3H8O6S2/c4-10(5,6)2-1-3-11(7,8)9/h1-3H2,(H,4,5,6)(H,7,8,9)/p-2

Upstream product

• 109-80-8 1.3-propanedithiol 
• 1120-71-4 1,3-propanesultone 
• 17356-08-0 thiourea 
• 17636-10-1 sodium 3-mercaptopropanesulfonate 
• 109-64-8 1,3-dibromo-propane 
• 20686-91-3 1,3-propanedisulfonyl dichloride 

Downstream Products

• 20686-91-3 1,3-propanedisulfonyl dichloride 
• 6274-90-4 Propandisulfonsaeure-(1,3)-dimethylester 

Relevant articles and documents

Characterization and purification of commercial SPS and MPS by ion chromatography and mass spectrometry

SPS (bis-(3-sulfopropyl) disulfide) is an essential electrolyte additive used in the fabrication of copper interconnects by electrodeposition. In electroplating baths, the disulfide component of SPS may be cleaved to form the thiol analog, MPS (3-mercaptopropyl sulfonate), by either homogenous interactions with the Cu(I) reaction intermediate or by dissociative adsorption onto the copper surface. However, mechanistic studies into the role of these additives in copper electrodeposition are presently constrained by limited knowledge of the purity of commercially available SPS and MPS. This report details the use of ion chromatography (IC) and electrospray ionization mass spectrometry to characterize aqueous solutions of commercial SPS and MPS source materials. Sulfate (2.0%) and propane disulfonic acid (0.9%) (PDS) were determined to be the principal impurities in SPS (96.3% estimated purity, mass fraction). IC fractionation was used to purify and isolate SPS for surface and electroanalytical studies. Stability of SPS, MPS, and PDS in the presence of O2 and Cu(II) was also examined. No degradation of SPS or PDS in aqueous solution was observed over a 3-month period. Solutions of MPS were metastable to O2 saturation, but the addition of Cu(II) resulted in formation of SPS by dimerization as well as parasitic PDS generation.

A comparative study of the electrochemical fluorination (ECF) of 1 ,n-alkanebis (sulfonylfluorides) (n = 1-3 )

Synthetic methods for the preparation of α,ω-alkanebis(sulfonylfluorides) and their electrochemical fluorination (ECF) are described in detail. Factors affecting the yield of the perfluoro-α,ω-alkanebis(sulfonylfluorides) are also discussed. Spectral data (13C and 19F NMR and mass spectra) and other hitherto unknown physical properties of difluoromethanebis(sulfonylfluoride) (1), 1,1,2,2-tetrafluoroethane-1,2-bis(sulfonylfluoride) (2) and 1,1,2,2,3,3-hexafluoropropane-1,3-bis(sulfonylfluoride) (3) are measured and compared. Elsevier Science S.A.