5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde
5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde (CAS: 32358-94-4), with the molecular formula C10H8OS2 and a molecular weight of 208.30 g/mol, is a thiophene derivative featuring an aldehyde functional group. This compound serves as a valuable building block in organic synthesis, particularly within the realm of heterocyclic chemistry. Its structure, incorporating two thiophene rings, makes it a useful intermediate for creating more complex molecules.

Organic Synthesis Intermediate
This aldehyde is employed as a key intermediate in the synthesis of various organic compounds. Its reactive aldehyde group and thiophene moieties allow for diverse chemical transformations, enabling the construction of more complex molecular architectures.
Heterocyclic Chemistry Building Block
As a disubstituted thiophene derivative, it is valuable in the field of heterocyclic chemistry. It can be utilised in the development of novel compounds with potential applications in materials science or medicinal chemistry research.
Research and Development
This chemical serves as a reagent in research and development laboratories for exploring new synthetic pathways and for the creation of novel chemical entities.
| Molecular weight | 208.30 |
|---|---|
| Empirical formula | C10H8OS2 |
| Assay | 97% |
| Melting point | 96-100 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-38 |
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 5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde used for?
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5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde is used as an intermediate and building block in organic synthesis, particularly in heterocyclic chemistry and research and development.
What are the CAS number and formula for this compound?
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The CAS number is 32358-94-4 and the empirical formula is C10H8OS2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde with an assay of 97%. This is a technical grade chemical and is not represented as USP, BP, or EP.
How should 5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde be handled?
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This compound is classified as a Warning with hazard statements H302 (Harmful if swallowed) and H315 (Causes skin irritation). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, faceshields, and gloves. Ensure adequate ventilation when handling.
Is this chemical exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde.
How can I request a sample or quote?
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To request a sample or a quote for 5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde, please contact the Tech Serve Solutions sales team through our website or by phone.
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