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S-Ethyl-L-cysteine

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Identification
Molecular formula
C6H13NO2S
CAS number
1115-93-9
IUPAC name
(2S)-2-amino-4-ethylsulfanyl-butanoic acid
State
State
This compound is typically found in a solid state at room temperature.
Melting point (Celsius)
200.00
Melting point (Kelvin)
473.15
Boiling point (Celsius)
250.00
Boiling point (Kelvin)
523.15
General information
Molecular weight
149.22g/mol
Molar mass
149.2150g/mol
Density
1.3500g/cm3
Appearence

S-Ethyl-L-cysteine typically appears as a white crystalline powder or white crystals.

Comment on solubility

Solubility of (2S)-2-amino-4-ethylsulfanyl-butanoic acid (C6H13NO2S)

(2S)-2-amino-4-ethylsulfanyl-butanoic acid, also known for its role in biological systems, displays interesting solubility characteristics. In terms of its solubility, it can be generally stated that:

  • Water Solubility: The presence of both the amino and carboxylic acid functional groups enhances its solubility in polar solvents, particularly water.
  • Polar vs. Nonpolar Solvents: Compounds with charged or polar functional groups tend to have better solubility in polar solvents. Thus, (2S)-2-amino-4-ethylsulfanyl-butanoic acid is expected to be poorly soluble in nonpolar solvents.
  • pH Dependence: The solubility of this compound may vary with pH due to the ionization of the carboxylic acid group, making it more soluble at higher pH levels where it may exist predominantly in its anionic form.
  • Temperature Influence: Like many organic compounds, its solubility may increase with temperature, although the exact change would need experimental determination.

In summary, (2S)-2-amino-4-ethylsulfanyl-butanoic acid is notably soluble in water, influenced by the polar nature of its functional groups. The compound's solubility profile reflects the interplay between its molecular structure and the solvent properties.

Interesting facts

Interesting Facts about (2S)-2-amino-4-ethylsulfanyl-butanoic acid

(2S)-2-amino-4-ethylsulfanyl-butanoic acid, commonly referred to as an amino acid with a unique structure, has a number of fascinating characteristics that make it noteworthy in the field of biochemistry. Here are some essential points:

  • Chirality and Optical Activity: This compound possesses a chiral center, meaning it exists in two enantiomeric forms. The (2S) configuration indicates that it is biologically active, and this chirality can significantly affect its interaction with receptor sites in biological systems.
  • Role in Protein Synthesis: As an amino acid, it plays a critical role in the synthesis of proteins. Its unique side group, the ethylsulfanyl moiety, may contribute to specific properties of proteins, potentially influencing their stability and function.
  • Biochemical Significance: The presence of sulfur in its structure suggests potential roles in redox reactions and biochemical pathways involving thiols, which are crucial for maintaining cellular functions and protecting against oxidative stress.
  • Potential Applications: Due to its unique properties, (2S)-2-amino-4-ethylsulfanyl-butanoic acid has potential applications in pharmaceuticals, particularly in drug design that targets amino acid pathways or acts on specific receptor sites.

As a scientist or chemistry student, exploring this compound opens the door to understanding not just its individual properties but also its broader implications in biochemical processes and medicinal chemistry. It raises intriguing questions about how subtle changes in molecular structure can lead to vastly different biological activities.

In summary, (2S)-2-amino-4-ethylsulfanyl-butanoic acid exemplifies the intricate connections between molecular structure and biological function, making it a compound worth studying for its multifaceted roles in chemistry and biology.

Synonyms
L-Ethionine
Ethionine
S-Ethyl-L-homocysteine
L-Homocysteine, S-ethyl-
Homocysteine, S-ethyl-
Ethionine (VAN)
(L)-Ethionine
(+)-ethionine
CCRIS 289
(2S)-2-amino-4-(ethylsulfanyl)butanoic acid
HSDB 5080
UNII-WX1BN24WZT
EINECS 235-966-4
(+)-S-ethyl-L-homocysteine
BRN 1722528
CHEBI:4886
ETHIONINE [MI]
ETHIONINE [HSDB]
L-2-amino-4-(ethylthio)butanoic acid
DTXSID5020578
NSC-82393
2-Amino-4-(ethylthio)butyric acid, (L)-
(L)-Butyric acid, 2-amino-4-(ethylthio)-
4-04-00-03194 (Beilstein Handbook Reference)
LEthionine
(L)Ethionine
LSEthylhomocysteine
SEthylLhomocysteine
Homocysteine, Sethyl
LHomocysteine, Sethyl
Homocysteine Sethyl ether
DTXCID30578
L2Amino4(ethylthio)butyric acid
Butyric acid, 2amino4(ethylthio), L
Butanoic acid, 2amino4(ethylthio), (S)
BUTANOIC ACID, 2-AMINO-4-(ETHYLTHIO)-,
ALPHA-AMINO-GAMMA-(ETHYLMERCAPTO)BUTYRIC ACID
gglzplkkbsskcx-yfkpbyrvsa-n
13073-35-3
(S)-2-amino-4-(ethylthio)butanoic acid
L-S-Ethylhomocysteine
L-2-Amino-4-(ethylthio)butyric acid
(2S)-2-amino-4-ethylsulfanylbutanoic acid
NSC 82393
Butyric acid, 2-amino-4-(ethylthio)-, L-
MFCD00002626
WX1BN24WZT
Butanoic acid, 2-amino-4-(ethylthio)-, (S)-
CHEMBL203187
2-AMINO-4-ETHYL SULFANYL BUTYRIC ACID
H-Eth-OH
Butyric acid, 2-amino-4-(ethylene)-, L-
(S)-ethionine
L-Ethionine, 98%
SCHEMBL8967
NCIStruc1_000100
NCIStruc2_000170
HOMOCYSTEINE S-ETHYL ETHER
L-Ethionine, >=99% (TLC)
NCI97927
BDBM50179693
CCG-36221
NCGC00014018
AKOS016844009
CS-W017916
FE22864
HY-W017200
(S)-2-amino-4-(ethylthio)butanoicacid
NCGC00014018-02
NCGC00097127-01
AS-58177
E0039
NS00024123
A12005
EN300-194573
Q5403506
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