3,4-Thiophenedicarboxylic acid
3,4-Thiophenedicarboxylic acid (CAS 4282-29-5) is a heterocyclic organic compound with the molecular formula C6H4O4S and a molecular weight of 172.16 g/mol. This thiophene derivative serves as a valuable building block in organic synthesis. Its structure lends itself to various chemical transformations, making it a useful intermediate for researchers and chemists developing new molecules and materials in diverse scientific fields.
- Synonyms
- 3,4-Thiophenedicarboxylic acid

Organic Synthesis Intermediate
Utilised as a precursor in the synthesis of more complex organic molecules and heterocyclic compounds. Its dicarboxylic acid functionality allows for various coupling and derivatisation reactions.
Materials Science Research
Can be employed in the development of novel polymers, conductive materials, or functional organic frameworks. The thiophene ring is a common motif in organic electronic materials.
Pharmaceutical and Agrochemical Discovery
Serves as a scaffold or intermediate in the exploration of new drug candidates or crop protection agents. Heterocyclic structures are prevalent in biologically active compounds.
| Molecular weight | 172.16 |
|---|---|
| Empirical formula | C6H4O4S |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3,4-Thiophenedicarboxylic acid used for?
+
3,4-Thiophenedicarboxylic acid is primarily used as a building block and intermediate in organic synthesis, materials science research, and in the discovery of new pharmaceutical and agrochemical compounds.
What is the CAS number and formula for 3,4-Thiophenedicarboxylic acid?
+
The CAS number for 3,4-Thiophenedicarboxylic acid is 4282-29-5 and its empirical formula is C6H4O4S.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 3,4-Thiophenedicarboxylic acid typically as a research or technical grade chemical. Purity information is available on the product's Certificate of Analysis. We do not represent this product as USP, BP, or EP grade.
How should 3,4-Thiophenedicarboxylic acid be handled?
+
3,4-Thiophenedicarboxylic acid is classified under Germany's WGK 3, indicating it is hazardous to water. Handle with appropriate personal protective equipment in a well-ventilated area to avoid contact with skin, eyes, and inhalation. Consult the Safety Data Sheet (SDS) for detailed handling and safety information.
How is 3,4-Thiophenedicarboxylic acid packed and shipped?
+
3,4-Thiophenedicarboxylic acid is carefully packed according to international shipping regulations for chemical substances. TSS exports globally to meet research and industrial needs.
How can I request a quote or sample for 3,4-Thiophenedicarboxylic acid?
+
To request a quote or a sample of 3,4-Thiophenedicarboxylic acid, please use the contact form on our website or email our sales department, referencing the product CAS number 4282-29-5.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis