(3S)-(+)-3-(1-Methyl-1H-indol-3-yl)-1-butyraldehyde
(3S)-(+)-3-(1-Methyl-1H-indol-3-yl)-1-butyraldehyde (CAS: 406920-65-8) is a chiral aldehyde with the molecular formula C13H15NO and a molecular weight of 201.26 g/mol. This valuable building block, featuring an indole moiety and a chiral center, is primarily used in organic synthesis. Its specific stereochemistry makes it particularly useful in asymmetric synthesis and the construction of complex organic molecules for research and development purposes.

Chiral Building Block
This compound serves as a crucial chiral building block in stereoselective synthesis. Its defined stereochemistry enables the precise construction of complex molecules with specific three-dimensional orientations, essential for pharmaceutical and fine chemical research.
Intermediate in Organic Synthesis
The presence of both an aldehyde functional group and a substituted indole ring makes it a versatile intermediate. It can participate in a variety of reactions, including nucleophilic additions and condensation reactions, to form more complex structures.
Asymmetric Synthesis
Leveraging its inherent chirality, this aldehyde is valuable in asymmetric synthesis. It can be employed to introduce or control stereocenters in target molecules, aiding in the development of enantiomerically pure compounds.
| Molecular weight | 201.26 |
|---|---|
| Empirical formula | C13H15NO |
| Assay | 97% |
| Optical activity | [α]20/D +5°, c = 1% in chloroform |
| Optical purity | ee: 99% (HPLC) |
| Melting point | 56-60 °C(lit.) |

Hazard statements
- 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) | Xi |
| Risk statements (R) | 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 (3S)-(+)-3-(1-Methyl-1H-indol-3-yl)-1-butyraldehyde used for?
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(3S)-(+)-3-(1-Methyl-1H-indol-3-yl)-1-butyraldehyde is primarily used as a chiral building block and intermediate in organic synthesis, particularly in asymmetric synthesis. It is valuable for constructing complex organic molecules and introducing specific stereochemistry in research and development.
What are the CAS number and formula for this chemical?
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The CAS number is 406920-65-8, and the empirical formula is C13H15NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound at an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeial grade; it is suitable for research and technical applications.
What are the safety and handling precautions for this chemical?
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This compound is classified as a Warning with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory tract irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn. Handle in a well-ventilated area.
Is this chemical controlled or scheduled?
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The provided data does not indicate that this chemical is a controlled or scheduled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions specialises in the global supply and export of fine chemicals. Specific packing, shipping, and export details are provided upon request to ensure compliance with all relevant regulations.
How can I request a sample or a quote?
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To request a sample or a quote for (3S)-(+)-3-(1-Methyl-1H-indol-3-yl)-1-butyraldehyde, please contact our sales team through the website or via direct enquiry, providing your specific requirements.
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