Methyl 4-(3-thienyl)benzoate
Methyl 4-(3-thienyl)benzoate (CAS: 20608-91-7), with the molecular formula C12H10O2S and a molecular weight of 218.27 g/mol, is a specialised organic compound. As a heterocyclic building block, it serves as a key intermediate in chemical synthesis. Its structure, featuring a thiophene ring linked to a benzoate ester, makes it valuable in the development of novel materials and active pharmaceutical ingredients.
- IUPAC
- Methyl 4-(thiophen-3-yl)benzoate

Chemical Synthesis Intermediate
Methyl 4-(3-thienyl)benzoate is widely employed as a building block in complex organic synthesis. Its functional groups allow for further chemical modifications, enabling the construction of larger molecules with desired properties.
Pharmaceutical Research and Development
This compound can be utilised in the synthesis of potential pharmaceutical candidates. Its thiophene moiety is present in various biologically active molecules, suggesting its utility in medicinal chemistry research.
Materials Science
The unique electronic properties imparted by the thiophene ring make Methyl 4-(3-thienyl)benzoate a potential component in the design of organic electronic materials. It can be incorporated into polymers or small molecules for applications in organic electronics.
| Molecular weight | 218.27 |
|---|---|
| Empirical formula | C12H10O2S |
| Assay | 97% |
| Melting point | 160-164 °C(lit.) |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| Safety statements (S) | 26-39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 Methyl 4-(3-thienyl)benzoate used for?
+
Methyl 4-(3-thienyl)benzoate is primarily used as a building block and intermediate in organic chemical synthesis, particularly in pharmaceutical research and materials science.
What are the CAS number and molecular formula for Methyl 4-(3-thienyl)benzoate?
+
The CAS number is 20608-91-7, and the molecular formula is C12H10O2S.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Methyl 4-(3-thienyl)benzoate with an assay of 97%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades.
What are the key safety hazards associated with Methyl 4-(3-thienyl)benzoate?
+
Methyl 4-(3-thienyl)benzoate is classified with Danger signal word, indicated by GHS05 and GHS07 symbols. It is harmful if swallowed (H302) and causes serious eye damage (H318). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used.
How is Methyl 4-(3-thienyl)benzoate shipped?
+
As a global supplier and exporter of fine chemicals, Tech Serve Solutions adheres to all relevant shipping regulations for chemical products.
How can I request a quote or sample for Methyl 4-(3-thienyl)benzoate?
+
Please contact our sales department directly via our website or by phone to request a quotation or a sample.
▶ 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