Chemical Properties of Lysine (CAS 56-87-1)

InChI

InChI=1S/C6H14N2O2/c7-4-2-1-3-5(8)6(9)10/h5H,1-4,7-8H2,(H,9,10)/t5-/m1/s1

InChI Key

KDXKERNSBIXSRK-RXMQYKEDSA-N

Formula

C6H14N2O2

SMILES

NCCCCC(N)C(=O)O

Molecular Weight¹

146.19

CAS

56-87-1

Other Names

• (S)-2,6-Diaminohexanoic acid
• (S)-Lysine
• (S)-«alpha»,«epsilon»-Diaminocaproic acid
• (S)-«alpha»,«epsilon»-Diaminocaproic acid
• 2,6-DIAMINOHEXANOIC ACID
• AMINUTRIN
• Hexanoic acid, 2,6-diamino-, (S)-
• L-(+)-Lysine
• L-H2N(CH2)4CH(NH2)COOH
• L-LYSINE
• L-Norleucine, 6-amino-
• Lys
• Lysine acid
• Lysine, L-
• h-Lys-oh
• «alpha»,«epsilon»-Diaminocaproic acid
• «alpha»-Lysine
• «alpha»,«epsilon»-Diaminocaproic acid
• «alpha»-Lysine

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	996.00	kJ/mol	NIST
BasG	951.00	kJ/mol	NIST
ΔcH°solid	-3683.20 ± 1.50	kJ/mol	NIST
ΔfG°	-135.64	kJ/mol	Joback Calculated Property
ΔfH°gas	-369.68	kJ/mol	Joback Calculated Property
ΔfH°solid	-678.70 ± 1.50	kJ/mol	NIST
ΔfusH°	23.85	kJ/mol	Joback Calculated Property
ΔvapH°	73.27	kJ/mol	Joback Calculated Property
IE	[8.60; 9.50]	eV
IE	8.60	eV	NIST
IE	9.50	eV	NIST
log10WS	-0.41		Crippen Calculated Property
logPoct/wat	-0.473		Crippen Calculated Property
McVol	122.800	ml/mol	McGowan Calculated Property
Pc	4345.39	kPa	Joback Calculated Property
Tboil	627.35	K	Joback Calculated Property
Tc	821.14	K	Joback Calculated Property
Tfus	419.65	K	Joback Calculated Property
Vc	0.449	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[327.73; 377.03]	J/mol×K	[627.35; 821.14]
Cp,gas	327.73	J/mol×K	627.35	Joback Calculated Property
Cp,gas	337.15	J/mol×K	659.65	Joback Calculated Property
Cp,gas	346.06	J/mol×K	691.95	Joback Calculated Property
Cp,gas	354.49	J/mol×K	724.25	Joback Calculated Property
Cp,gas	362.45	J/mol×K	756.54	Joback Calculated Property
Cp,gas	369.96	J/mol×K	788.84	Joback Calculated Property
Cp,gas	377.03	J/mol×K	821.14	Joback Calculated Property

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.98; 202.63]	kPa	[483.00; 548.91]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			3.35245e+01
Coefficient B			-1.17085e+04
Coefficient C			-1.33906e+02
Temperature range, min.			483.00
Temperature range, max.			548.91
Pvap	0.98	kPa	483.00	Calculated Property
Pvap	1.96	kPa	490.32	Calculated Property
Pvap	3.80	kPa	497.65	Calculated Property
Pvap	7.17	kPa	504.97	Calculated Property
Pvap	13.21	kPa	512.29	Calculated Property
Pvap	23.78	kPa	519.62	Calculated Property
Pvap	41.86	kPa	526.94	Calculated Property
Pvap	72.19	kPa	534.26	Calculated Property
Pvap	122.07	kPa	541.59	Calculated Property
Pvap	202.63	kPa	548.91	Calculated Property
Pvap	[1.15; 3539.08]	kPa	[483.00; 821.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			2.16774e+02
Coefficient B			-2.25228e+04
Coefficient C			-2.78152e+01
Coefficient D			8.13785e-06
Temperature range, min.			483.00
Temperature range, max.			821.00
Pvap	1.15	kPa	483.00	Calculated Property
Pvap	5.65	kPa	520.56	Calculated Property
Pvap	20.80	kPa	558.11	Calculated Property
Pvap	61.59	kPa	595.67	Calculated Property
Pvap	154.15	kPa	633.22	Calculated Property
Pvap	338.74	kPa	670.78	Calculated Property
Pvap	672.95	kPa	708.33	Calculated Property
Pvap	1236.58	kPa	745.89	Calculated Property
Pvap	2140.09	kPa	783.44	Calculated Property
Pvap	3539.08	kPa	821.00	Calculated Property

Similar Compounds

Find more compounds similar to Lysine.

Mixtures

• Lysine + Water
• Lysine + sodium bromide + Water
• Lysine + sodium chloride + Water
• Lysine + potassium iodide + Water
• Lysine + Sodium sulfate + Water
• Lysine + Ethanol + Water
• Lysine + Ethanol

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• Thermophysical properties of aqueous lysine and its inhibition influence on methane and carbon dioxide hydrate phase boundary condition
• Mutual diffusion coefficients of L-lysine in aqueous solutions
• Solvation of Basic and Neutral Amino Acids in Aqueous Electrolytic Solutions: Measurements and Modeling
• Solubility of the Proteinogenic a-Amino Acids in Water, Ethanol, and Ethanol-Water Mixtures
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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