Lysine (data page)

The complete data for Lysine

General information

Chemical formula: C₆H₁₄N₂O₂
Molar mass: 146.19 g·mol⁻¹
Systematic name:
-2,6-Diaminohexanoic acid
Abbreviations: K, Lys
Synonyms:
none

Database data

SMILES: NCCCCC(N)C(=O)O
InChI=1/C6H14N2O2/c7-4-2-1-3-5(8)6(9)10/h5H,1-4,7-8H2,(H,9,10)/f/h9H

ATC: N/A

CAS: 56-87-1

DrugBank: N/A

EINECS: 200-294-2 ^a

PubChem: 866 (DL) ^a, 5962 (L) ^a

Physical properties

Structure

Crystal data

Spectral data

UV-Vis

NMR

Phase behavior

Solid properties

T_m: 224 °C

Liquid properties

Gas properties

Hazard properties

MSDS N/A

Main hazards:

- N/A

NFPA 704

Flash point

- N/A

R/S statement

R: N/A
S: N/A

RTECS number:
N/A

Chemical properties

XLogP: -2.926

pI: 9.74

pK_a: 2.15, 9.16, 10.67

Tautomers:

Hydrogen bond: donor - 3; acceptor - 4

Pharmacological properties

Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

References

^a EINECS number 200-294-2 (Lysine)
^a CID 866 from PubChem (DL-Lysine)
^a CID 5962 from PubChem (L-Lysine)

The encoded amino acid

General topics

By properties

Aliphatic	Branched-chain amino acids (Valine Isoleucine Leucine) Methionine Alanine Proline Glycine

Aromatic	Phenylalanine Tyrosine Tryptophan Histidine

Polar, uncharged	Asparagine Glutamine Serine Threonine

Positive charge (pK_a)	Lysine (≈10.8) Arginine (≈12.5) Histidine (≈6.1)

Negative charge (pK_a)	Aspartic acid (≈3.9) Glutamic acid (≈4.1) Cysteine (≈8.3) Tyrosine (≈10.1)

Other classifications

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