L-Valine benzyl ester p-toluenesulfonate salt
L-Valine benzyl ester p-toluenesulfonate salt (CAS 16652-76-9) is a chemical intermediate with a molecular weight of 379.47 g/mol. This compound is a derivative of the amino acid L-valine, featuring both ester and tosylate functionalities. It is primarily utilised in chemical synthesis, particularly within the fields of peptide chemistry and chemical biology, serving as a building block for more complex molecules. Its specific structural features make it valuable in targeted synthetic pathways.

Peptide Synthesis
L-Valine benzyl ester p-toluenesulfonate salt serves as a protected amino acid derivative in solid-phase and solution-phase peptide synthesis. The benzyl ester and tosylate groups offer orthogonal protection strategies during peptide chain elongation.
Organic Synthesis Intermediate
This compound acts as a versatile building block in general organic synthesis. Its functional groups allow for various transformations, making it suitable for constructing complex organic molecules and intermediates.
Chemical Biology Research
Utilised in chemical biology for the synthesis of modified peptides or peptidomimetics. Its structure can be incorporated into biologically active molecules for studying protein-ligand interactions or developing novel therapeutic agents.
| Molecular weight | 379.47 |
|---|---|
| Linear formula | (CH3)2CHCH(NH2)COOCH2C6H5 · CH3C6H4SO3H |
| Storage temperature | −20°C |
| Melting point | 160-160 °C |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 L-Valine benzyl ester p-toluenesulfonate salt used for?
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L-Valine benzyl ester p-toluenesulfonate salt is primarily used as an intermediate in organic synthesis, particularly in peptide chemistry and chemical biology for constructing complex molecules and modified peptides.
What is the CAS number and formula for L-Valine benzyl ester p-toluenesulfonate salt?
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The CAS number is 16652-76-9. The linear formula is (CH3)2CHCH(NH2)COOCH2C6H5 · CH3C6H4SO3H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Valine benzyl ester p-toluenesulfonate salt, CAS 16652-76-9, typically as a research or technical grade chemical. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product specifications.
How should L-Valine benzyl ester p-toluenesulfonate salt be handled safely?
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Handle with care using appropriate personal protective equipment, including eyeshields, gloves, and a P1 or N95 respirator filter. Refer to the Safety Data Sheet (SDS) for comprehensive handling and safety information. Store at -20°C.
How is L-Valine benzyl ester p-toluenesulfonate salt packed and shipped?
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This chemical is carefully packed and exported in compliance with international shipping regulations for chemical products. Specific packaging details are available upon request.
How can I request a sample or quote for L-Valine benzyl ester p-toluenesulfonate salt?
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To request a sample or a quote for L-Valine benzyl ester p-toluenesulfonate salt, please use the 'Contact Us' form or reach out to our sales team via the provided contact details on the Tech Serve Solutions website.
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