(S)-2 Azido-3-(3-indolyl)propionic acid cyclohexylammonium salt
(S)-2 Azido-3-(3-indolyl)propionic acid cyclohexylammonium salt (CAS: 1217481-78-1) is a chiral building block with the molecular formula C11H10N4O2 · C6H13N and a molecular weight of 329.40 g/mol. This L-azidotryptophan derivative, supplied by TSS, is primarily utilised in asymmetric synthesis and organic synthesis. Its azide functionality makes it valuable for conjugation chemistry, particularly in the development of novel molecules for chemical biology research.
- IUPAC
- L-Azidotryptophan cyclohexylammonium salt,N3-Trp-OH CHA salt
- Synonyms
- L-Azidotryptophan cyclohexylammonium saltN3-Trp-OH CHA salt

Asymmetric Synthesis
This chiral compound serves as a versatile building block in asymmetric synthesis, enabling the construction of complex stereochemically defined molecules. Its indole and azide functionalities offer diverse synthetic pathways.
Conjugation Chemistry
The presence of the azide group makes this molecule suitable for conjugation chemistry, particularly in click chemistry reactions with alkynes. This facilitates the labelling or modification of biomolecules and materials.
Organic Synthesis
As a functionalised amino acid derivative, it is employed in various organic synthesis routes for the creation of novel heterocyclic compounds and complex molecular architectures.
Chemical Biology Research
This compound can be used in chemical biology to synthesise probes or modified biomolecules for studying biological processes. Its tryptophan-like structure and azide handle are advantageous for such applications.
| Molecular weight | 329.40 |
|---|---|
| Empirical formula | C11H10N4O2 · C6H13N |
| Assay | ≥98% (HPLC) |
| Optical activity | [α]/D -45.0±2.0°, c = 1 in methanol |
| Storage temperature | 2-8°C |
| Composition | carbon, 60.7-63.2%nitrogen, 20.8-21.7% |

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 |
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 (S)-2 Azido-3-(3-indolyl)propionic acid cyclohexylammonium salt used for?
+
This compound is used as a chiral building block in asymmetric synthesis and organic synthesis, and for conjugation chemistry applications, particularly in chemical biology research.
What are the CAS number and formula for this product?
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The CAS number is 1217481-78-1, and the formula is C11H10N4O2 · C6H13N.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product with an assay of ≥98% (HPLC). TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should (S)-2 Azido-3-(3-indolyl)propionic acid cyclohexylammonium salt be handled?
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This compound is classified as a Warning, with hazards including skin irritation (H315), eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn. Ensure adequate ventilation.
How is this chemical packed and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents, adhering to all necessary regulations for international shipment.
How can I request a quote or sample?
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Please contact our sales team via the website to request a quote or a sample of (S)-2 Azido-3-(3-indolyl)propionic acid cyclohexylammonium salt.
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