L-Lysine hydrate
L-Lysine hydrate (CAS: 39665-12-8) is a form of the essential amino acid lysine, with the linear formula H₂N(CH₂)₄CH(NH₂)CO₂H · xH₂O. Possessing a molecular weight of 146.19 on an anhydrous basis, this compound is soluble in water. It is primarily utilised in chemical synthesis, peptide chemistry, and as a component in chemical biology research, contributing to various biochemical and synthetic pathways.
- IUPAC
- (S)-(+)-Lysine

Chemical Synthesis
L-Lysine hydrate serves as a fundamental building block in organic synthesis. Its reactive amine and carboxylic acid groups allow for incorporation into more complex molecules and polymers.
Peptide Chemistry
As an essential amino acid, L-Lysine hydrate is critical for the synthesis and study of peptides. It can be incorporated into synthetic peptide sequences for research purposes.
Chemical Biology
This compound is employed in chemical biology to investigate biological processes and functions. Its presence is crucial for understanding protein structure and function in cellular systems.
| Molecular weight | 146.19 (anhydrous basis) |
|---|---|
| Linear formula | H2N(CH2)4CH(NH2)CO2H · xH2O |
| Assay | 97% |
| Solubility | H2O: soluble |
| Optical activity | [α]21/D +22°, c = 2 in 6 M HCl |
| Impurities tested | endotoxin, tested |
| Suitability | cell culture tested |
| 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-Lysine hydrate used for?
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L-Lysine hydrate is used in chemical synthesis, peptide chemistry, and chemical biology research.
What is the CAS number and formula for L-Lysine hydrate?
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The CAS number is 39665-12-8, and the linear formula is H₂N(CH₂)₄CH(NH₂)CO₂H · xH₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Lysine hydrate with an assay of 97%. This product is tested for endotoxins and is suitable for cell culture, but TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for L-Lysine hydrate?
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L-Lysine hydrate is classified with WGK Germany 3. When handling, it is essential to use appropriate personal protective equipment, including eyeshields, gloves, and a P1 (EN143) or N95 (US) respirator filter.
How is L-Lysine hydrate packed and shipped?
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Tech Serve Solutions exports fine chemicals globally, ensuring appropriate packaging for safe transport according to international regulations. Please contact us for specific shipping details.
How can I request a sample or quote for L-Lysine hydrate?
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To request a sample or a quote for L-Lysine hydrate, please use the contact form on our website or reach out to our sales team directly.
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