3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&

Base Information

• Chemical Name: 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&
• CAS No.: 14282-56-5
• Molecular Formula: C10H12 O6 S . 2 Na
• Molecular Weight: 304.231
• Hs Code.: 2934999090
• Mol file: 14282-56-5.mol

Synonyms:2,5-Thiophenedicarboxylicacid, 3,4-dihydroxy-, diethyl ester, disodium salt (8CI,9CI);3,4-Dihydroxy-2,5-thiophenedicarboxylic acid 2,5;

Chemical Property of 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&

Chemical Property:

• Vapor Pressure: 4.41E-06mmHg at 25°C
• Melting Point: 320-325oC(lit.)
• Refractive Index: 1.616
• Boiling Point: 343.8oC at 760mmHg
• Flash Point: 161.7oC
• PSA: 121.30000
• Density: 1.507g/cm3
• LogP: 1.51270

Purity/Quality:

99% ^*data from raw suppliers

3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disodium salt ^*data from reagent suppliers

Safty Information:

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

Technology Process of 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI&

There total 1 articles about 3 4-DIHYDROXY-THIOPHENE-2 5-DICARBOXYLI& which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 91.6%

diethyl thioglycolate (925-47-3) + oxalic acid diethyl ester (95-92-1) → diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate disodium salt (14282-56-5)

Guidance literature:

With ethanol; sodium ethanolate; at 20 ℃; for 3.5h; Reflux;

DOI:10.3184/174751911X13073872921614

Reference yield:

diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate disodium salt (14282-56-5) → 3,4-dihydroxythiophene-2,5-dicarboxylic acid diethyl ester (1822-66-8)

Guidance literature:

With hydrogenchloride; In water;

Reference yield:

1,3-dichloro-1,1,3,3-tetraphenyldisiloxane (7756-87-8) + diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate disodium salt (14282-56-5) → C30H22O7SSi2

Guidance literature:

1,3-dichloro-1,1,3,3-tetraphenyldisiloxane; diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate disodium salt; In ethanol; at 50 - 80 ℃; for 2h;

With sodium hydroxide; water; at 70 ℃; for 2h;

With hydrogenchloride; In water; at 0 - 20 ℃; for 2h;

upstream raw materials:

diethyl thioglycolate

oxalic acid diethyl ester

Downstream raw materials:

3,4-dihydroxythiophene-2,5-dicarboxylic acid diethyl ester

3,4-ethylenedioxythiophene-2,5-dicarboxyllic acid