Chemical Properties of dl-Alanine (CAS 302-72-7)

InChI

InChI=1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)

InChI Key

QNAYBMKLOCPYGJ-UHFFFAOYSA-N

Formula

C3H7NO2

SMILES

CC(N)C(=O)O

Molecular Weight¹

89.09

CAS

302-72-7

Other Names

• (.+/-.)-Alanine
• ALANINE, «alpha»
• Alanine, DL-
• DL-«alpha»-Alanine
• dl-2-aminopropanoic acid
• dl-«alpha»-Aminopropionic acid

• ω : Acentric Factor.
• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,solid : Solid phase heat capacity (J/mol×K).
• 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).
• S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
• 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
ω	0.6256		Relay (1.0) Calculated Property
ΔcH°solid	[-1633.60; -1602.00]	kJ/mol
ΔcH°solid	-1602.00 ± 2.90	kJ/mol	NIST
ΔcH°solid	-1617.30 ± 0.59	kJ/mol	NIST
ΔcH°solid	-1623.40 ± 0.20	kJ/mol	NIST
ΔcH°solid	-1633.60	kJ/mol	NIST
ΔfH°gas	-430.26	kJ/mol	Relay (1.0) Calculated Property
ΔfH°solid	[-578.90; -563.63]	kJ/mol
ΔfH°solid	-578.90 ± 2.90	kJ/mol	NIST
ΔfH°solid	-563.63 ± 0.59	kJ/mol	NIST
ΔfusH°	10.89	kJ/mol	Joback Calculated Property
ΔvapH°	59.94	kJ/mol	Relay (1.0) Calculated Property
IE	8.96	eV	Relay (1.0) Calculated Property
log10WS	0.57		Relay (1.0) Calculated Property
logPoct/wat	-0.582		Crippen Calculated Property
McVol	70.550	ml/mol	McGowan Calculated Property
Pc	6046.69	kPa	Joback Calculated Property
S°solid,1 bar	132.20	J/mol×K	NIST
Tboil	460.96	K	Relay (1.0) Calculated Property
Tc	657.91	K	Relay (1.0) Calculated Property
Tfus	563.50	K	Thermophysical Study of Several alpha- and beta-Amino Acid Derivatives by Differential Scanning Calorimetry (DSC)
Vc	0.256	m3/kmol	Relay (1.0) Calculated Property

Cheméo can also estimate Standard Gibbs free energy of formation for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[151.30; 183.73]	J/mol×K	[486.18; 677.88]
Cp,gas	151.30	J/mol×K	486.18	Joback Calculated Property
Cp,gas	157.40	J/mol×K	518.13	Joback Calculated Property
Cp,gas	163.22	J/mol×K	550.08	Joback Calculated Property
Cp,gas	168.75	J/mol×K	582.03	Joback Calculated Property
Cp,gas	174.01	J/mol×K	613.98	Joback Calculated Property
Cp,gas	179.00	J/mol×K	645.93	Joback Calculated Property
Cp,gas	183.73	J/mol×K	677.88	Joback Calculated Property
Cp,solid	[113.80; 121.71]	J/mol×K	[297.50; 298.15]
Cp,solid	121.71	J/mol×K	297.50	NIST
Cp,solid	114.00	J/mol×K	298.00	NIST
Cp,solid	113.80	J/mol×K	298.00	NIST
Cp,solid	121.60	J/mol×K	298.15	NIST

Similar Compounds

Find more compounds similar to dl-Alanine.

Mixtures

• dl-Alanine + Water + Tetradonium Bromide
• dl-Alanine + Water
• potassium chloride + dl-Alanine + Water
• Tetramethylammonium bromide + dl-Alanine + Water
• Tetraethylammonium bromide + dl-Alanine + Water
• Fructose + dl-Alanine + Water
• Ammonium sulfate + dl-Alanine + Water
• Glucose + dl-Alanine + Water
• dl-Alanine + Magnesium acetate + Water
• 1,4-Butanediol + dl-Alanine + Water
• Lithium chloride + dl-Alanine + Water
• sodium chloride + dl-Alanine + Water
• Sodium sulfate + dl-Alanine + Water
• Zinc Chloride + dl-Alanine + Water
• dl-Alanine + Acetic acid, sodium salt + Water
• Sodium bromide + dl-Alanine + Water
• Potassium bromide + dl-Alanine + Water
• 1,2-Ethanediol + Dimethyl Sulfoxide + dl-Alanine
• 1,2-Ethanediol + dl-Alanine
• Dimethyl Sulfoxide + dl-Alanine

Find more mixtures with dl-Alanine.

Sources

• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• Osmotic and activity coefficients of glycine, dl-a-alanine and dl-a-aminobutyric acid in aqueous solutions at temperatures between 288.15 and 303.15 K
• KCl effect on the solubility of five different amino acids in water
• Solubility of triclosan and iodopropynyl butylcarbamate in pure alkanols at several temperatures
• Volumetric properties of amino acids in aqueous solutions of ammonium based protic ionic liquids
• Effect of sodium caproate on the volumetric and viscometric properties of glycine, DL-alpha-alanine, and DL-alpha-amino-n-butyric acid in aqueous solutions
• Volumetric, viscometric, and refractive index behaviour of a-amino acids and their groups? contribution in aqueous D-glucose solution at different temperatures
• Effect of magnesium acetate on the volumetric and transport behavior of some amino acids in aqueous solutions at 298.15 K
• Interactions of some ex-amino acids with tetra-n-alkylammonium bromides in aqueous medium at different temperatures
• Volumetric, ultrasonic, and viscometric behaviour of glycine, DL-alanine, and L-valine in aqueous 1,4-butanediol solutions at different temperatures
• The effect of ammonium sulfate on the solubility of amino acids in water at (298.15 and 323.15) K
• Solubility of salicylic acid in pure alcohols at different temperatures
• Thermodynamics of the interactions of some amino acids and peptides with dodecyltrimethylammonium bromide and tetradecyltrimethylammonium bromide
• Effect of glycine, DL-alanine and DL-2-aminobutyric acid on the temperature of maximum density of water
• Volumetric and viscometric study of the ternary (dl-alanine/+d(-)-fructose + water) solution at different temperatures and atmospheric pressure
• Standard molar enthalpy of formation of Nd(Gly)2(Ala)3Cl3*2H2O(s)
• Solubility and Chemical Thermodynamics of d,l-Alanine and d,l-Serine in Aqueous NaCl and KCl Solutions
• Surface Tension of Glycine, Alanine, Aminobutyric Acid, Norvaline, and Norleucine in Water and in Aqueous Solutions of Strong Electrolytes at Temperatures from (293.15 to 313.15) K
• Solubility and Thermodynamics of Solute-Solvent Interactions of Some Amino Acids in Aqueous Sodium Bromide and Potassium Bromide Solutions
• Apparent Molar Volumes and Viscosities of Some Amino Acids in Aqueous Sodium Acetate Solutions at 298.15 K
• Studies on the Diffusion Coefficients of Amino Acids in Aqueous Solutions
• Partial Molar Volumes and Viscosities of Some r-Amino Acids in Micellar Solutions of Sodium Caprylate
• Volumetric and Viscometric Studies of Some Amino Acids in Aqueous Solutions of Cadmium Chloride at T = (288.15 to 318.15) K and at Atmospheric Pressure
• Thermophysical Study of Several alpha- and beta-Amino Acid Derivatives by Differential Scanning Calorimetry (DSC)
• Excess Volume of Water in Hydrate Complexes of Some alpha-Amino Acids
• Water Activity in Aqueous Amino Acid Solutions Containing Ammonium Sulfate at 298.2 K
• Solubility and Solvation Thermodynamics of a Series of Homologous a-Amino Acids in Nonaqueous Binary Mixtures of Ethylene Glycol and Dimethyl Sulfoxide
• Study of Interactions between Amino Acids and Zinc Chloride in Aqueous Solutions through Volumetric Measurements at T ) (288.15 to 318.15) K
• Phase Equilibrium System of Cadmium Chloride + dl-Alanine + Water at 298.15 K and Standard Molar Enthalpy of Formation of Cd3(Ala)2Cl6*4H2O
• Joback Method
• McGowan Method
• NIST Webbook

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