14282-56-5

Basic information

• Product Name: 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&
• Synonyms: 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&;3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester, disodium salt;3,4-Dihydroxy-2,5-thiophenedicarboxylic acid 2,5-diethyl ester sodium salt;Sodium 2,5-bis(ethoxycarbonyl)-thiophene-3,4-bis(olate);3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disod;disodium,2,5-bis(ethoxycarbonyl)thiophene-3,4-diolate
• CAS NO: 14282-56-5
• Molecular Formula: C₁₀H₁₀O₆S*2Na
• Molecular Weight: 304.22734
• Product Categories: Thiophene Monomers and Building Blocks;Organic Electronics and Photonics;Synthetic Tools and Reagents
• Mol File: 14282-56-5.mol
• Article Data: 5

Chemical Properties

• Melting Point: 320-325 °C(lit.)
• Boiling Point: 343.8oC at 760mmHg
• Flash Point: 161.7oC
• Appearance: /
• Density: 1.507g/cm3
• Vapor Pressure: 4.41E-06mmHg at 25°C
• Refractive Index: 1.616
• CAS DataBase Reference: 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&(CAS DataBase Reference)
• NIST Chemistry Reference: 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&(14282-56-5)
• EPA Substance Registry System: 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&(14282-56-5)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 14282-56-5(Hazardous Substances Data)

Usage

Chemical Properties

Yellow solid

InChI:InChI=1/C10H12O6S/c1-3-15-9(13)7-5(11)6(12)8(17-7)10(14)16-4-2/h13-14H,3-4H2,1-2H3/b9-7-,10-8-

Upstream product

• 925-47-3 diethyl thioglycolate 
• 95-92-1 oxalic acid diethyl ester 

Downstream Products

• 18361-03-0 3,4-ethylenedioxythiophene-2,5-dicarboxyllic acid 
• 1822-66-8 3,4-dihydroxythiophene-2,5-dicarboxylic acid diethyl ester 

Relevant articles and documents

Polymer material monomer 3, 4 - ethylene dioxy thiophene preparation method

The invention relates to a method for preparing polymer monomer 3,4-ethylenedioxythiophene. The method includes firstly dissolving ethyl chloroacetate and sodium sulphide in acetone to react to obtain diethyl thioglycolate; secondly, dissolving the diethyl thioglycolate to ethanol, adding sodium ethoxide and diethyl oxalate into the ethanol, heating and reflowing to obtain ethanol solution of 2,5-dioctyl phthalate ethyl ester-3,4-thiophene glycol sodium; thirdly, adding dichloroethane and tetrabutylammonium bromide into the ethanol solution of the 2,5-dioctyl phthalate ethyl ester-3,4-thiophene glycol sodium, heating and reflowing to obtain 3,4-ethylenedioxy-2,5-dioctyl phthalate ethyl ester thiophene; fourthly, dissolving the 3,4-ethylenedioxy-2,5-dioctyl phthalate ethyl ester thiophene in mixed solvent, adding sodium chloride, heating and reacting, and finally reducing pressure and rectifying. The method for preparing polymer monomer 3,4-ethylenedioxythiophene is few in procedures, low in cost, safe and reliable in technique, simple and fast in post-treatment method, and products are high in yield and purity.

PROCESS FOR PREPARING ORGANIC SILICON MONOMER

Provided is a process for preparing a conductive high-molecular weight organic silicon monomer represented by Formula 1 or 2, which contains thiophene as a main backbone and has a substitution of a five- or six-membered heterocyclic compound containing si

Esters of Thiodiglycollic and Thiodipropionic Acids and 2,5-Dicarboxy-3,4-dihydroxythiophene as Potential Slow Acting Anticancer Agents

A series of esters of thiodiglycollic and thiodipropionic acids and 2,5-dicarboxy-3,4-dihydroxythiophene have been synthesised with a view to testing their anticancer properties.The esters, as against parent acids are expected to have a prolonged effect.