1.12233
L-Lysine monohydrate
for biochemistry
Synonym(s):
L-Lysine monohydrate, Lys
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About This Item
Linear Formula:
NH2(CH2)4CH(NH2)COOH
CAS Number:
Molecular Weight:
146.19 (anhydrous basis)
MDL number:
UNSPSC Code:
12352209
EC Index Number:
200-294-2
NACRES:
NA.21
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Quality Level
form
solid
pH
9-10.5 (20 °C, 80 g/L in H2O)
mp
207-209 °C (decomposes)
solubility
>1500 g/L
bulk density
366 kg/m3
storage temp.
2-8°C
InChI
1S/C6H14N2O2.H2O/c7-4-2-1-3-5(8)6(9)10;/h5H,1-4,7-8H2,(H,9,10);1H2/t5-;/m0./s1
InChI key
HZRUTVAFDWTKGD-JEDNCBNOSA-N
Analysis Note
Assay (Perchloric acid titration, calc. on anhydrous substance): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white, crystalline powder or colorless crystals with characteristic odor
Appearance of solution (100 g/l, water): clear and colorless
Spec. rotation(α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): +25.5 to +26.5
Heavy metals (as Pb): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
Water (according to Karl Fischer): 10.0 - 12.0 %
Identity (IR-spectrum): passes test
Appearance: white, crystalline powder or colorless crystals with characteristic odor
Appearance of solution (100 g/l, water): clear and colorless
Spec. rotation(α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): +25.5 to +26.5
Heavy metals (as Pb): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
Water (according to Karl Fischer): 10.0 - 12.0 %
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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