6-(3-Thienyl)pyridine-2-carboxaldehyde
6-(3-Thienyl)pyridine-2-carboxaldehyde (CAS: 834884-76-3), with the molecular formula C10H7NOS and a molecular weight of 189.23 g/mol, is a heterocyclic organic compound. It functions as a key building block and intermediate in organic synthesis. This aldehyde derivative, featuring both pyridine and thiophene rings, is valuable for constructing more complex molecules, particularly in the fields of medicinal chemistry and materials science.
- IUPAC
- 6-(Thiophen-3-yl)pyridine-2-carboxaldehyde

Organic Synthesis Intermediate
Utilised as a versatile building block in multi-step syntheses. Its reactive aldehyde group and heterocyclic scaffold allow for diverse chemical transformations.
Medicinal Chemistry
Serves as a precursor for the synthesis of novel pharmaceutical compounds and drug candidates. The thienylpyridine moiety is found in various biologically active molecules.
Materials Science Research
Employed in the development of functional organic materials, such as those for optoelectronic applications, due to its conjugated pi-electron system.
| Molecular weight | 189.23 |
|---|---|
| Empirical formula | C10H7NOS |
| Assay | 97% |
| Melting point | 73-77 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- 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) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36 |
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 6-(3-Thienyl)pyridine-2-carboxaldehyde used for?
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It is used as an intermediate in organic synthesis, particularly in medicinal chemistry for developing new pharmaceutical compounds and in materials science research.
What is the CAS number and formula for 6-(3-Thienyl)pyridine-2-carboxaldehyde?
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The CAS number is 834884-76-3, and the molecular formula is C10H7NOS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of 97%. This is suitable for research and general chemical synthesis; it is not supplied as USP, BP, EP, or any other pharmacopoeia grade.
How should 6-(3-Thienyl)pyridine-2-carboxaldehyde be handled safely?
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The compound is classified as a Warning with hazards H302 (Harmful if swallowed), H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (N95 or equivalent). Ensure good ventilation and avoid dust formation.
Is 6-(3-Thienyl)pyridine-2-carboxaldehyde a controlled substance?
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Based on the provided data, there is no indication that this compound is a controlled substance. It is classified as Xn (Harmful) in Europe.
How is 6-(3-Thienyl)pyridine-2-carboxaldehyde packaged and exported?
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Tech Serve Solutions carefully packages and exports chemicals globally, ensuring compliance with international shipping regulations for hazardous materials.
How can I request a sample or a quote?
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To request a sample or a quote for 6-(3-Thienyl)pyridine-2-carboxaldehyde, please contact our sales team via the website or by telephone.
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