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Record Information

Version

5.0

Status

Detected but not Quantified

Creation Date

2021-09-11 08:52:51 UTC

Update Date

2022-09-22 17:44:22 UTC

HMDB ID

HMDB0251518

Secondary Accession Numbers

None

Metabolite Identification

Common Name

DL-Ethionine

Description

DL-Ethionine belongs to the class of organic compounds known as alpha amino acids. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Based on a literature review a significant number of articles have been published on DL-Ethionine. This compound has been identified in human blood as reported by (PMID: 31557052 ). Dl-ethionine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically DL-Ethionine is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.

Structure

MOL 3D MOL SDF 3D SDF PDB 3D PDB SMILES InChI

View in JSmol View NMR Assignments View Stereo Labels

Synonyms

Value	Source
2-Amino-4-(ethylsulfanyl)butanoic acid	ChEBI
Ethionine	ChEBI
2-Amino-4-(ethylsulfanyl)butanoate	Generator
2-Amino-4-(ethylsulphanyl)butanoate	Generator
2-Amino-4-(ethylsulphanyl)butanoic acid	Generator

Chemical Formula

C₆H₁₃NO₂S

Average Molecular Weight

163.24

Monoisotopic Molecular Weight

163.066699837

IUPAC Name

2-amino-4-(ethylsulfanyl)butanoic acid

Traditional Name

(D)-ethionine

CAS Registry Number

Not Available

SMILES

CCSCCC(N)C(O)=O

InChI Identifier

InChI=1S/C6H13NO2S/c1-2-10-4-3-5(7)6(8)9/h5H,2-4,7H2,1H3,(H,8,9)

InChI Key

GGLZPLKKBSSKCX-UHFFFAOYSA-N

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as alpha amino acids. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon).

Kingdom

Organic compounds

Super Class

Organic acids and derivatives

Class

Carboxylic acids and derivatives

Sub Class

Amino acids, peptides, and analogues

Direct Parent

Alpha amino acids

Alternative Parents

Substituents

Alpha-amino acid
Thia fatty acid
Fatty acid
Fatty acyl
Amino acid
Carboxylic acid
Monocarboxylic acid or derivatives
Thioether
Sulfenyl compound
Dialkylthioether
Amine
Organic oxygen compound
Primary amine
Organosulfur compound
Organooxygen compound
Organonitrogen compound
Organic oxide
Primary aliphatic amine
Carbonyl group
Organopnictogen compound
Organic nitrogen compound
Hydrocarbon derivative
Aliphatic acyclic compound

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

organic sulfide (CHEBI:68662 )
non-proteinogenic alpha-amino acid (CHEBI:68662 )

Ontology

Physiological effect

Not Available

Disposition

Biological location

Non-excretory biofluid

Biofluid or Excreta

Blood (PMID: 31557052)

Source

Exogenous

Exogenous (PMID: 31557052)

Process

Not Available

Role

Not Available

Physical Properties

State

Not Available

Experimental Molecular Properties

Property	Value	Reference
Melting Point	Not Available	Not Available
Boiling Point	Not Available	Not Available
Water Solubility	Not Available	Not Available
LogP	Not Available	Not Available

Experimental Chromatographic Properties

Not Available

Predicted Molecular Properties

Property	Value	Source
logP	-1.4	ALOGPS
logP	-1.9	ChemAxon
logS	-1.1	ALOGPS
pKa (Strongest Acidic)	2.61	ChemAxon
pKa (Strongest Basic)	9.5	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	3	ChemAxon
Hydrogen Donor Count	2	ChemAxon
Polar Surface Area	63.32 Å²	ChemAxon
Rotatable Bond Count	5	ChemAxon
Refractivity	42.38 m³·mol⁻¹	ChemAxon
Polarizability	17.77 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

Predicted Chromatographic Properties

Predicted Collision Cross Sections

Predictor	Adduct Type	CCS Value (Å²)	Reference
DeepCCS	[M+H]+	137.75	30932474
DeepCCS	[M-H]-	134.856	30932474
DeepCCS	[M-2H]-	171.632	30932474
DeepCCS	[M+Na]+	146.397	30932474
AllCCS	[M+H]+	136.2	32859911
AllCCS	[M+H-H2O]+	132.5	32859911
AllCCS	[M+NH4]+	139.8	32859911
AllCCS	[M+Na]+	140.8	32859911
AllCCS	[M-H]-	138.3	32859911
AllCCS	[M+Na-2H]-	140.7	32859911
AllCCS	[M+HCOO]-	143.4	32859911

Predicted Kovats Retention Indices

Derivatized

Derivative Name / Structure	SMILES	Kovats RI Value	Column Type	Reference
DL-Ethionine,2TMS,isomer #1	CCSCCC(N[Si](C)(C)C)C(=O)O[Si](C)(C)C	1582.0	Semi standard non polar	33892256
DL-Ethionine,2TMS,isomer #1	CCSCCC(N[Si](C)(C)C)C(=O)O[Si](C)(C)C	1592.9	Standard non polar	33892256
DL-Ethionine,2TMS,isomer #1	CCSCCC(N[Si](C)(C)C)C(=O)O[Si](C)(C)C	1822.0	Standard polar	33892256
DL-Ethionine,2TMS,isomer #2	CCSCCC(C(=O)O)N([Si](C)(C)C)[Si](C)(C)C	1738.4	Semi standard non polar	33892256
DL-Ethionine,2TMS,isomer #2	CCSCCC(C(=O)O)N([Si](C)(C)C)[Si](C)(C)C	1666.6	Standard non polar	33892256
DL-Ethionine,2TMS,isomer #2	CCSCCC(C(=O)O)N([Si](C)(C)C)[Si](C)(C)C	2035.6	Standard polar	33892256
DL-Ethionine,3TMS,isomer #1	CCSCCC(C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C	1764.1	Semi standard non polar	33892256
DL-Ethionine,3TMS,isomer #1	CCSCCC(C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C	1727.7	Standard non polar	33892256
DL-Ethionine,3TMS,isomer #1	CCSCCC(C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C	1777.8	Standard polar	33892256
DL-Ethionine,1TBDMS,isomer #2	CCSCCC(N[Si](C)(C)C(C)(C)C)C(=O)O	1794.6	Semi standard non polar	33892256
DL-Ethionine,1TBDMS,isomer #2	CCSCCC(N[Si](C)(C)C(C)(C)C)C(=O)O	1739.6	Standard non polar	33892256
DL-Ethionine,1TBDMS,isomer #2	CCSCCC(N[Si](C)(C)C(C)(C)C)C(=O)O	2295.0	Standard polar	33892256
DL-Ethionine,2TBDMS,isomer #1	CCSCCC(N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C	2034.6	Semi standard non polar	33892256
DL-Ethionine,2TBDMS,isomer #1	CCSCCC(N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C	2025.7	Standard non polar	33892256
DL-Ethionine,2TBDMS,isomer #1	CCSCCC(N[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C	2066.0	Standard polar	33892256
DL-Ethionine,2TBDMS,isomer #2	CCSCCC(C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C	2157.9	Semi standard non polar	33892256
DL-Ethionine,2TBDMS,isomer #2	CCSCCC(C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C	2096.6	Standard non polar	33892256
DL-Ethionine,2TBDMS,isomer #2	CCSCCC(C(=O)O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C	2189.9	Standard polar	33892256
DL-Ethionine,3TBDMS,isomer #1	CCSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C	2426.5	Semi standard non polar	33892256
DL-Ethionine,3TBDMS,isomer #1	CCSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C	2349.2	Standard non polar	33892256
DL-Ethionine,3TBDMS,isomer #1	CCSCCC(C(=O)O[Si](C)(C)C(C)(C)C)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C	2146.6	Standard polar	33892256

Spectra

GC-MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted GC-MS	Predicted GC-MS Spectrum - DL-Ethionine GC-MS (Non-derivatized) - 70eV, Positive	splash10-05di-9100000000-a6dd4af824997d4e08d4	2021-09-23	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - DL-Ethionine GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - DL-Ethionine GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - DL-Ethionine GC-MS (TMS_1_1) - 70eV, Positive	Not Available	2021-11-04	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - DL-Ethionine GC-MS (TMS_1_2) - 70eV, Positive	Not Available	2021-11-04	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - DL-Ethionine GC-MS (TBDMS_1_1) - 70eV, Positive	Not Available	2021-11-04	Wishart Lab	View Spectrum

MS/MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - DL-Ethionine 10V, Positive-QTOF	splash10-0nor-6900000000-6a1c8d8677dcb0878337	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - DL-Ethionine 20V, Positive-QTOF	splash10-0a6r-9100000000-07d8000e7a6c815de140	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - DL-Ethionine 40V, Positive-QTOF	splash10-052b-9000000000-3a283a6dd20bf6828de4	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - DL-Ethionine 10V, Negative-QTOF	splash10-03di-9000000000-650f130fe513538872cd	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - DL-Ethionine 20V, Negative-QTOF	splash10-0bt9-9000000000-213b008c797b1c063859	2021-10-12	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - DL-Ethionine 40V, Negative-QTOF	splash10-03di-9000000000-3bb78757e5e0f884923f	2021-10-12	Wishart Lab	View Spectrum

NMR Spectra

Spectrum Type	Description	Deposition Date	Source	View
Predicted 1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-10-13	Wishart Lab	View Spectrum

Biological Properties

Cellular Locations

Not Available

Biospecimen Locations

Blood
Urine

Tissue Locations

Not Available

Pathways

Not Available

Name	SMPDB/PathBank	KEGG

Normal Concentrations

Biospecimen	Status	Value	Age	Sex	Condition	Reference	Details
Blood	Detected but not Quantified	Not Quantified	Not Specified	Not Specified	Normal	31557052	details

Abnormal Concentrations

Biospecimen	Status	Value	Age	Sex	Condition	Reference	Details
Urine	Detected but not Quantified	Not Quantified	Not Specified	Not Specified	Cancer patients undergoing total body irradiation	31424920	details

Associated Disorders and Diseases

Disease References

None

Associated OMIM IDs

None

External Links

DrugBank ID

Not Available

Phenol Explorer Compound ID

Not Available

FooDB ID

Not Available

KNApSAcK ID

Not Available

Chemspider ID

5970

KEGG Compound ID

Not Available

BioCyc ID

Not Available

BiGG ID

Not Available

Wikipedia Link

Not Available

METLIN ID

Not Available

PubChem Compound

6205

PDB ID

Not Available

ChEBI ID

68662

Food Biomarker Ontology

Not Available

VMH ID

Not Available

MarkerDB ID

Not Available

Good Scents ID

Not Available

References

Synthesis Reference

Not Available

Material Safety Data Sheet (MSDS)

Not Available

General References

Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]

Showing metabocard for DL-Ethionine (HMDB0251518)

MOL for HMDB0251518 (DL-Ethionine)

3D MOL for HMDB0251518 (DL-Ethionine)

3D SDF for HMDB0251518 (DL-Ethionine)

3D-SDF for HMDB0251518 (DL-Ethionine)

PDB for HMDB0251518 (DL-Ethionine)

3D PDB for HMDB0251518 (DL-Ethionine)

SMILES for HMDB0251518 (DL-Ethionine)

INCHI for HMDB0251518 (DL-Ethionine)

Structure for HMDB0251518 (DL-Ethionine)

3D Structure for HMDB0251518 (DL-Ethionine)

Predicted Collision Cross Sections

Predicted Kovats Retention Indices

Derivatized

GC-MS Spectra

MS/MS Spectra

NMR Spectra