L-Lysine dihydrochloride
L-Lysine dihydrochloride (CAS 657-26-1) is the dihydrochloride salt of the essential amino acid L-lysine. This white crystalline powder has a molecular weight of 219.11 g/mol. It is commonly utilized in biochemical research and as a reagent in various laboratory applications. Its specific properties make it valuable for studies involving amino acid metabolism and protein chemistry.
- IUPAC
- (S)-2,6-Diaminohexanoic acid dihydrochloride
- Synonyms
- (S)-2,6-Diaminohexanoic acid dihydrochloride

Biochemical Research
Used as a fundamental component in studies of amino acid metabolism, protein synthesis, and related biological pathways. Its availability as a stable salt form facilitates accurate experimental setup.
Laboratory Reagent
Serves as a reagent in chemical synthesis and analytical procedures. Its defined purity allows for reproducible results in laboratory settings.
Cell Culture Media
Can be incorporated into specialised cell culture media formulations to provide essential nutrients for cell growth and maintenance in research environments.
| Molecular weight | 219.11 |
|---|---|
| Linear formula | NH2(CH2)4CH(NH2)COOH · 2HCl |
| Assay | ≥98% (HPLC) |
| Melting point | 200-206 °C(lit.) |
| 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 dihydrochloride used for?
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L-Lysine dihydrochloride is primarily used in biochemical research and as a laboratory reagent. It is also incorporated into specialised cell culture media.
What is the CAS number and formula for L-Lysine dihydrochloride?
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The CAS number is 657-26-1 and the linear formula is NH2(CH2)4CH(NH2)COOH · 2HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Lysine dihydrochloride with an assay of ≥98% (HPLC). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should L-Lysine dihydrochloride be handled?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if airborne exposure is possible. The compound is classified under WGK Germany 3, indicating a high hazard to water.
How is L-Lysine dihydrochloride packed, shipped, and exported?
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L-Lysine dihydrochloride is carefully packed to maintain its integrity during transit. Tech Serve Solutions is experienced in exporting chemicals globally, adhering to all relevant shipping regulations.
How can I request a sample or quote for L-Lysine dihydrochloride?
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Please contact our sales team via the website or by phone to request a sample or a detailed quotation for L-Lysine dihydrochloride.
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