4-Methylthiophene-2-carboxaldehyde
4-Methylthiophene-2-carboxaldehyde (CAS: 6030-36-0) is an organic compound with the molecular formula C6H6OS and a molecular weight of 126.18 g/mol. This aldehyde derivative of thiophene serves as a valuable building block in organic synthesis. Its reactive carbonyl group and heterocyclic structure make it useful in the development of more complex molecules, particularly within the fields of pharmaceutical intermediates and fine chemical research.
- IUPAC
- 4-Methyl-2-thiophenecarbaldehyde

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of various organic compounds. Its thiophene ring and aldehyde functionality allow for diverse chemical transformations, making it valuable for constructing complex molecular architectures.
Pharmaceutical Building Block
Serves as a foundational component in the research and development of novel pharmaceutical agents. Its structure can be incorporated into molecules designed for specific biological targets.
Fine Chemical Research
Employed in laboratory settings for the exploration of new chemical reactions and the creation of novel compounds. Its properties make it suitable for small-scale synthetic investigations.
| Molecular weight | 126.18 |
|---|---|
| Empirical formula | C6H6OS |
| Assay | 97% |
| Boiling point | 88-92 °C/5 mmHg |
| Density | 1.025 g/mL at 25 °C |
| Refractive index | n20/D 1.578 |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 92 °C / 197.6 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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 4-Methylthiophene-2-carboxaldehyde primarily used for?
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4-Methylthiophene-2-carboxaldehyde is primarily used as an intermediate and building block in organic synthesis, particularly in the development of pharmaceutical intermediates and fine chemicals.
What are the CAS number and molecular formula for 4-Methylthiophene-2-carboxaldehyde?
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The CAS number for 4-Methylthiophene-2-carboxaldehyde is 6030-36-0, and its molecular formula is C6H6OS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methylthiophene-2-carboxaldehyde with a minimum assay of 97%. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Methylthiophene-2-carboxaldehyde be handled safely?
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4-Methylthiophene-2-carboxaldehyde is classified as harmful if swallowed (H302) and requires appropriate personal protective equipment, including eyeshields, faceshields, gloves, and suitable respiratory protection, to be handled safely.
Is 4-Methylthiophene-2-carboxaldehyde a controlled substance?
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Based on the provided data, there is no indication that 4-Methylthiophene-2-carboxaldehyde is a controlled substance.
How is this chemical packed, shipped, and exported?
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This chemical is typically packed in suitable containers for shipping and is exported globally by Tech Serve Solutions, adhering to all relevant transport regulations, such as those for NA 1993 / PGIII.
How can I request a sample or quote for 4-Methylthiophene-2-carboxaldehyde?
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To request a sample or quote for 4-Methylthiophene-2-carboxaldehyde, please contact the Tech Serve Solutions sales team through the website or by phone.
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