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Alanine

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Identification
Molecular formula
C3H7NO2
CAS number
56-41-7
IUPAC name
2-aminopropanoic acid
State
State

At room temperature, alanine is in a solid state. It is stable under ordinary conditions and is soluble in water.

Melting point (Celsius)
258.00
Melting point (Kelvin)
531.15
Boiling point (Celsius)
259.00
Boiling point (Kelvin)
532.15
General information
Molecular weight
89.09g/mol
Molar mass
89.0940g/mol
Density
1.4240g/cm3
Appearence

Alanine appears as a white, crystalline solid that is typically odorless. It is commonly used in research and industry due to its role as a building block of proteins.

Comment on solubility

Solubility of 2-Aminopropanoic Acid (C3H7NO2)

2-Aminopropanoic acid, commonly known as alanine, exhibits intriguing solubility properties that are essential in various biochemical contexts. The solubility of this amino acid is notably influenced by several factors:

  • Polarity: Due to the presence of both an amino group (-NH2) and a carboxylic acid group (-COOH), 2-aminopropanoic acid is polar, enhancing its ability to dissolve in polar solvents like water.
  • Hydrogen Bonding: The functional groups can participate in hydrogen bonding, which further facilitates solubility in aqueous solutions.
  • pH Sensitivity: The solubility may vary with pH; it is more soluble in acidic and basic environments due to the protonation and deprotonation of its functional groups.

At room temperature, it is generally classified as highly soluble in water, which makes it readily available for biological processes. The solvent interactions allow it to readily participate in metabolic pathways, showcasing the importance of its solubility in biological systems.

In summary, 2-aminopropanoic acid demonstrates strong solubility in water due to its polar nature and ability to form hydrogen bonds, making it a vital component in both organic chemistry and biochemistry.

Interesting facts

Exciting Insights into 2-Aminopropanoic Acid

2-Aminopropanoic acid, commonly known as alanine, is a fascinating compound with a significant role in biochemistry. This simple amino acid is not only abundant in nature but also indispensable for various biological functions. Here are some captivating facts to help you appreciate 2-aminopropanoic acid:

  • Building Block of Proteins: Alanine plays a crucial role as one of the 20 standard amino acids, contributing to protein synthesis. It is incorporated into proteins, influencing their structure and function.
  • Metabolism: This amino acid is involved in metabolic processes, including the transamination pathway, which is pivotal for amino acid metabolism and glucose regulation.
  • Energy Source: During strenuous exercise, alanine can be converted to glucose through gluconeogenesis, providing a vital energy source for muscles.
  • Absorption: Alanine is absorbed efficiently from the intestine into the bloodstream, and its levels can be influenced by dietary intake, showcasing its importance in nutrition.
  • Health Benefits: Some studies suggest that alanine supplementation may enhance athletic performance and improve muscular endurance, making it popular among athletes.

Furthermore, alanine exists in two forms: L-alanine (the naturally occurring form) and D-alanine (a component of certain bacterial cell walls). This chirality is significant in the context of biological activity; organisms typically utilize L-alanine due to its compatibility with enzyme mechanisms. As a versatile amino acid, 2-aminopropanoic acid's influence extends beyond biochemistry to various fields, including nutrition, fitness, and therapeutic applications. In a world where the amino acids play a fundamental role in life, alanine stands out as a key player in maintaining our health and vitality.

Synonyms
DL-ALANINE
302-72-7
alanine
2-Aminopropanoic acid
Alanine, DL-
DL-2-Aminopropionic acid
DL-alpha-Alanine
D,L-Alanine
(R,S)-Alanine
DL-2-Aminopropanoic acid
alanina
(+-)-Alanine
MFCD00064408
(RS)-2-Aminopropionsaeure
DL-alpha-Aminopropionic acid
NSC 7602
(+-)-2-Aminopropionic acid
alanin
AI3-08908
EINECS 206-126-4
CCRIS 8596
dl-.alpha.-Aminopropionic acid
(+/-)-2-Aminopropionic acid
DL-.alpha.-Alanine
2-amino-propionic acid
1FU7983T0U
NSC-7602
(.+/-.)-Alanine
DL-ALANINE [FCC]
Propanoic acid, 2-amino-
Alanine-1,2,3-13C3
DTXSID6031255
FEMA NO. 3818
CHEBI:16449
NSC7602
L-ALANINE-2-13C-15N
E639
H-DL-Ala-OH
L-ALANINE (D7)
l alanine
.alpha.-Alanine
L-Isomer alanine
Alanine, L isomer
Alanine, L-isomer
L-Alanine-C2
L-.alpha.-Alanine
NSC-206315
.alpha.-Aminopropionic acid
(+/-)-Alanine
L-.alpha.-Aminopropionic acid
DLalphaAlanine
UNII-1FU7983T0U
L-ALANINE (3-13C)
D,LAlanine
DL-ALANINE (2-13C)
Alanine #
Alanine, DL
285977-86-8
(DL)-Alanine
DL-Ala
L(+)-Alanine
ALANINE, .alpha.
DL2Aminopropanoic acid
DL2Aminopropionic acid
ALANINE, ALPHA
2-Amino propanoic acid
(.+-.)-Alanine
DLalphaAminopropionic acid
L-|A-Aminopropionic acid
bmse000282
L-ALANINE EXTRA PURE
DL-Aminopropionic Acid,(S)
L-Alanine, USP, EP Grade
ALANINE DL-FORM [MI]
CHEMBL12198
(R,S)-2-Aminopropionic acid
DL-Alanine, FCC, >=99%
DTXCID4011255
DL-Alanine, >=99% (HPLC)
BCP26675
BCP31944
HY-N2362
QCA16326
WAA38665
DL-Alanine, >=99%, FCC, FG
NSC158286
NSC206315
STK125106
AKOS000119663
AKOS016039389
AKOS024264604
(+/-)-2-AMINOPROPANOIC ACID
AB02601
FA00639
(R)-(-)-2-AMINOPROPIONIC ACID
SY002277
SY005245
DB-029692
DB-048512
A0178
CS-0022544
NS00002090
EN300-18224
C01401
D72543
(S)-2-Aminopropionic acid;L-a-Aminopropionic acid
L001042
D-2-Aminopropionic acid; (R)-2-Aminopropionic acid
BRD-A33317514-001-01-3
H-D-Ala-OH;(R)-Alanine;(2R)-2-aminopropanoic acid
Q27101911
Z57396987
F1652-0639
915B7CC8-31B0-4478-904B-D54B7ECC1E4D
L-Alanine, from non-animal source, suitable for cell culture
(a-D-Mannosyl)7-b-D-mannosyl-diacetylchitobiosyl-L-asparagine, isoform a (protein)
(alpha-D-mannosyl)7-beta-D-mannosyl-diacetylchitobiosyl-L-asparagine, isoform A (protein)
206-126-4