thiophene-2,3,4,5-tetracarboxylic acid

Base Information

• Chemical Name: thiophene-2,3,4,5-tetracarboxylic acid
• CAS No.: 4506-94-9
• Molecular Formula: C8H4O8S
• Molecular Weight: 260.181
• Mol file: 4506-94-9.mol

Synonyms:

Chemical Property of thiophene-2,3,4,5-tetracarboxylic acid

Chemical Property:

• Vapor Pressure: 1.96E-16mmHg at 25°C
• Refractive Index: 1.746
• Boiling Point: 624°C at 760 mmHg
• Flash Point: 331.2 °C
• Density: 2.016 g/cm³

Purity/Quality:

99%, ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of thiophene-2,3,4,5-tetracarboxylic acid

There total 2 articles about thiophene-2,3,4,5-tetracarboxylic acid 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:

tetramethyl 2,3,4,5-thiophenetetracarboxylate (6579-15-3) → thiophene-2,3,4,5-tetracarboxylic acid (4506-94-9)

Guidance literature:

Reference yield:

→ thiophene-2,3,4,5-tetracarboxylic acid (4506-94-9)

Guidance literature:

Verb. 18 (/BRN= 250727/), konz. HCl, 100grad, langsam Erh.;

Reference yield:

thiophene-2,3,4,5-tetracarboxylic acid (4506-94-9) → 1H,3H-thieno[3,4-c]furan-1,3-dione (6007-85-8)

Guidance literature:

at 220 ℃;

upstream raw materials:

tetramethyl 2,3,4,5-thiophenetetracarboxylate

Downstream raw materials:

1H,3H-thieno[3,4-c]furan-1,3-dione

(2S,3R)-1,2,3,4-butanetetracarboxylic acid

Refernces