Melting point 215°C(dec.)(lit.) Specific optical rotation D20+14.6°(c=6.5); D23+25.9°(c=2in6.0NHCl) Boiling point 265.81°C(roughestimate) Density 1.1360(roughestimate)FEMA3847| L-LYSINE refractive index 26°(C=2,5mol/LHCl) storage conditions StoreatRT. Solubility H2O: 0.1g/mL, clear, colorless acidity coefficient (pKa) 2.16 (at25℃) form PowderorCrystals color Whitetolightyellow optical activity (opticalactivity) [α]20/D+26.0±1.0°,c=2%in6ChemicalbookMHCl water solubilitySolubleinwater.Insolubleinethanol,ethylether,acetone,benzeneandcommonneutralsolvent.JECFANumber1439Merck14,5636BRN1722531 Stability (CASDataBaseReference) NIST Chemical Substance Information Lysine (56-87-1) EPA Chemical Substance Information Lysine (56-87-1)