2-Methylindole-3-carboxaldehyde
2-Methylindole-3-carboxaldehyde (CAS: 5416-80-8, C10H9NO) is a heterocyclic organic compound with a molecular weight of 159.18 g/mol. This indole derivative, featuring an aldehyde group, serves as a valuable intermediate and building block in chemical synthesis. Its primary applications lie in the construction of more complex organic molecules, particularly within pharmaceutical research and development. Tech Serve Solutions supplies this chemical with a purity of 97%.
- IUPAC
- 3-Formyl-2-methylindole,NSC 11895

Synthetic Intermediate
2-Methylindole-3-carboxaldehyde is utilized as a key building block in organic synthesis. It can be employed in the preparation of more complex indole-based structures, which are prevalent in medicinal chemistry.
Research and Development
This compound finds application in research laboratories for the development of new synthetic methodologies and the exploration of novel chemical entities. Its functional groups allow for diverse chemical transformations.
Preparation of Substituted Indoles
As demonstrated in literature, 2-Methylindole-3-carboxaldehyde has been used in reactions such as the preparation of 1-phenylsulfonyl-2-methylindole-3-carboxaldehyde, showcasing its utility in modifying the indole core structure.
| Molecular weight | 159.18 |
|---|---|
| Empirical formula | C10H9NO |
| Assay | 97% |
| Application | 2-Methylindole-3-carboxaldehyde has been used in the preparation of 1-phenylsulfonyl-2-methylindole-3-carboxaldehyde1. |
| Melting point | 200-201 °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
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
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 2-Methylindole-3-carboxaldehyde used for?
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2-Methylindole-3-carboxaldehyde is used as a building block and intermediate in organic synthesis, particularly for creating more complex indole-based compounds relevant to pharmaceutical research and development.
What is the CAS number and molecular formula for 2-Methylindole-3-carboxaldehyde?
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The CAS number is 5416-80-8, and the molecular formula is C10H9NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Methylindole-3-carboxaldehyde with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the main safety hazards associated with 2-Methylindole-3-carboxaldehyde?
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2-Methylindole-3-carboxaldehyde is classified as a Warning substance. It is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment should be used during handling.
How is 2-Methylindole-3-carboxaldehyde packed and exported?
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Tech Serve Solutions exports fine chemicals globally, ensuring appropriate packaging for safe transit and compliance with international shipping regulations.
How can I request a sample or quote for 2-Methylindole-3-carboxaldehyde?
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Please use the contact form on our website or call our sales team to request a sample or a quotation for 2-Methylindole-3-carboxaldehyde.
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