Main page (Russian)
Search in database (English)
Properties of substance:
L-phenylalanine
Synonyms:
(S)-α-aminobenzenepropanoic acid
Group of substances:
organic
Empirical formula (Hill's system for organic substances):
C
9
H
1
1
NO
2
Structural formula as text:
C6H5CH2CH(NH2)COOH
Molar/atomic mass: 165.1891
Melting point (°C):
283
Decomposition temperature (°C):
283
Solubility (g/100 g of solvent):
diethyl ether
: insoluble [
Ref.
]
ethanol
: sparingly soluble (78°C) [
Ref.
]
water
: soluble [
Ref.
]
Numerical data:
Bitter taste threshold concentrations (mM): 3.21
Reactions:
Yeild 79%. [
Ref.1
,
Ref.2
]
NH
2
CH(CH
2
C
6
H
5
)COOH + (CH
3
CO)
2
O → CH
3
CONHCH(CH
2
C
6
H
5
)COCH
3
+ CH
3
COOH + CO
2
Standard molar enthalpy (heat) of formation Δ
f
H (298 K, kJ/mol)
-466.9 (s) [
Ref.
]
-312.9 (g) [
Ref.
]
Standard molar entropy S (298 K, J/(mol·K))
213.6 (s) [
Ref.
]
Molar heat capacity at constant pressure C
p
(298 K, J/(mol·K))
203 (s) [
Ref.
]
References:
CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-448
Свойства органических соединений: Справочник. - Под ред. Потехина А.А. - Л.: Химия, 1984. - pp. 310-311 [Russian]
Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 65 [Russian]
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru