L-Lysine dihydrochloride
Synonym(s):(S) -2,6-Diaminohexanoic acid dihydrochloride
- CAS NO.：657-26-1
- Empirical Formula: C6H16Cl2N2O2
- Molecular Weight: 219.11
- MDL number: MFCD00066389
- EINECS: 211-518-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:45
What is L-Lysine dihydrochloride?
Chemical properties
white to very light yellow crystalline powder
The Uses of L-Lysine dihydrochloride
Synthesis of hyperbranched polylysine using the N-hydroxysuccinimide ester of L-lysine dihydrochloride as AB 2 building block. The histidine and lysine standards were prepared from L-histidine monohydro- chloride and L-lysine dihydrochloride respectively. L-Homocitrulline-The copper complex was prepared from L-lysine dihydrochloride in 80 to 86 per cent yields.
What are the applications of Application
L-Lysine dihydrochloride is an essential proteinogenic α amino acid
Purification Methods
Crystallise it from MeOH, in the presence of excess HCl, by adding diethyl ether. [Yoneya J Biochem (Tokyo) 38 343 1951, Kearley & Ingersoll J Am Chem Soc 73 5783 1951, Beilstein 4 IV 2717.]
Properties of L-Lysine dihydrochloride
| Melting point: | 200-206 °C(lit.) |
| alpha | 14 º (c=2, water 18 ºC) |
| refractive index | 15 ° (C=2, H2O) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. |
| form | Crystalline Powder |
| color | White to very light yellow |
| Water Solubility | Soluble in water (100 mg/ml). |
| Sensitive | Hygroscopic |
| Merck | 14,5636 |
| BRN | 4539715 |
| CAS DataBase Reference | 657-26-1(CAS DataBase Reference) |
| EPA Substance Registry System | Lysine dihydrochloride (657-26-1) |
Safety information for L-Lysine dihydrochloride
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for L-Lysine dihydrochloride
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