trans-3-(3-Thienyl)acrylic acid
Trans-3-(3-Thienyl)acrylic acid (CAS: 102696-71-9; C7H6O2S) is a valuable heterocyclic building block. With a molecular weight of 154.19 g/mol, this compound serves as a key intermediate in organic synthesis. Its structure, featuring a thiophene ring conjugated with an acrylic acid moiety, makes it suitable for applications in the development of new materials and pharmaceutical compounds.
- IUPAC
- trans-3-Thiopheneacrylic acid

Organic Synthesis Intermediate
This compound is frequently employed as a building block in complex organic syntheses. Its reactive functional groups allow for diverse chemical transformations.
Pharmaceutical Research
As a thiophene derivative, it may be utilised in the discovery and development of novel pharmaceutical agents, leveraging the known biological activities of related structures.
Materials Science
The conjugated system of trans-3-(3-Thienyl)acrylic acid suggests potential applications in the synthesis of advanced materials, such as organic semiconductors or polymers.
| Molecular weight | 154.19 |
|---|---|
| Empirical formula | C7H6O2S |
| Assay | 97% |
| Melting point | 152-154 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 trans-3-(3-Thienyl)acrylic acid used for?
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Trans-3-(3-Thienyl)acrylic acid is used as a building block in organic synthesis, particularly in pharmaceutical research and the development of new materials.
What is the CAS number and formula for trans-3-(3-Thienyl)acrylic acid?
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The CAS number is 102696-71-9, and the molecular formula is C7H6O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies trans-3-(3-Thienyl)acrylic acid with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should trans-3-(3-Thienyl)acrylic acid be handled?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust. Ensure adequate ventilation. It is classified as an irritant to skin, eyes, and respiratory tract (H315-H319-H335).
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including trans-3-(3-Thienyl)acrylic acid.
How can I request a quote or sample?
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Please contact our sales department via the website or phone to request a quote or sample of trans-3-(3-Thienyl)acrylic acid.
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