3-(3-Thienyl)benzonitrile
3-(3-Thienyl)benzonitrile (CAS: 870703-81-4), with the molecular formula C11H7NS and a molecular weight of 185.24 g/mol, is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the fields of medicinal chemistry and materials science. Its structure, featuring a benzonitrile core attached to a thiophene ring, allows for diverse functionalization pathways in research and development.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of more complex organic molecules. Its distinct structural features make it suitable for reactions leading to novel heterocyclic compounds.
Medicinal Chemistry Research
A valuable building block for the development of potential pharmaceutical agents. The thienylbenzonitrile scaffold can be incorporated into molecules being investigated for various therapeutic applications.
Materials Science
Can be employed in the synthesis of advanced materials, potentially including organic semiconductors or dyes, owing to its conjugated pi-electron system.
| Molecular weight | 185.24 |
|---|---|
| Empirical formula | C11H7NS |
| Assay | 97% |
| Melting point | 48-52 °C(lit.) |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-36/37/39 |
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 3-(3-Thienyl)benzonitrile used for?
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3-(3-Thienyl)benzonitrile is primarily used as a building block in organic synthesis, with applications in medicinal chemistry research and materials science.
What are the CAS number and molecular formula of 3-(3-Thienyl)benzonitrile?
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The CAS number is 870703-81-4 and the molecular formula is C11H7NS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-(3-Thienyl)benzonitrile with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 3-(3-Thienyl)benzonitrile be handled?
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Handling requires appropriate personal protective equipment, including a dust mask (N95 recommended), eye protection (eyeshields, faceshields), and gloves. Avoid breathing dust/fume/gas/mist/vapours/spray. Causes serious eye damage and may cause respiratory irritation. Harmful if swallowed.
Is 3-(3-Thienyl)benzonitrile available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3-(3-Thienyl)benzonitrile.
How can I request a sample or quote for 3-(3-Thienyl)benzonitrile?
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Please contact our sales team via the website or direct email to request a sample or a formal quotation.
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