An official website of the United States government

2-Ethoxy-2-oxoacetic acid

PubChem CID
74701
Structure
2-Ethoxy-2-oxoacetic acid_small.png
2-Ethoxy-2-oxoacetic acid_3D_Structure.png
Molecular Formula
Synonyms
  • 2-ethoxy-2-oxoacetic acid
  • 617-37-8
  • Oxalic acid monoethyl ester
  • Ethyl hydrogen oxalate
  • Oxalic Acid Ethyl Ester
Molecular Weight
118.09 g/mol
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Dates
  • Create:
    2005-03-26
  • Modify:
    2024-12-28

1 Structures

1.1 2D Structure

Chemical Structure Depiction
2-Ethoxy-2-oxoacetic acid.png

1.2 3D Conformer

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

2-ethoxy-2-oxoacetic acid
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/C4H6O4/c1-2-8-4(7)3(5)6/h2H2,1H3,(H,5,6)
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

JRMAQQQTXDJDNC-UHFFFAOYSA-N
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.4 SMILES

CCOC(=O)C(=O)O
Computed by OEChem 2.3.0 (PubChem release 2021.10.14)

2.2 Molecular Formula

C4H6O4
Computed by PubChem 2.2 (PubChem release 2021.10.14)

2.3 Other Identifiers

2.3.1 CAS

2.3.2 European Community (EC) Number

2.3.3 DSSTox Substance ID

2.3.4 Nikkaji Number

2.3.5 Wikidata

2.4 Synonyms

2.4.1 Depositor-Supplied Synonyms

3 Chemical and Physical Properties

3.1 Computed Properties

Property Name
Molecular Weight
Property Value
118.09 g/mol
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
XLogP3-AA
Property Value
0.4
Reference
Computed by XLogP3 3.0 (PubChem release 2021.10.14)
Property Name
Hydrogen Bond Donor Count
Property Value
1
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Hydrogen Bond Acceptor Count
Property Value
4
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Rotatable Bond Count
Property Value
3
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Exact Mass
Property Value
118.02660867 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
118.02660867 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
63.6Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
8
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
107
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Isotope Atom Count
Property Value
0
Reference
Computed by PubChem
Property Name
Defined Atom Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Undefined Atom Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Defined Bond Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Undefined Bond Stereocenter Count
Property Value
0
Reference
Computed by PubChem
Property Name
Covalently-Bonded Unit Count
Property Value
1
Reference
Computed by PubChem
Property Name
Compound Is Canonicalized
Property Value
Yes
Reference
Computed by PubChem (release 2021.10.14)

4 Spectral Information

4.1 1D NMR Spectra

4.1.1 1H NMR Spectra

Copyright
Copyright © 2016-2024 Chemical Block, Russia, Leninsky Prospect 47 - Database Compilation Copyright © 2016-2021 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail

4.1.2 13C NMR Spectra

1 of 2
Source of Sample
K. Yamasaki, R. Kasai, Y. Masaki Tetrahedron Lett. 1977, 1231
Copyright
Copyright © 1980, 1981-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail
2 of 2
Instrument Name
Jeol PFT-100
Copyright
Copyright © 2002-2024 Wiley-VCH Verlag GmbH & Co. KGaA. All Rights Reserved.
Thumbnail
Thumbnail

4.2 Mass Spectrometry

4.2.1 GC-MS

1 of 2
NIST Number
288572
Library
Main library
Total Peaks
20
m/z Top Peak
44
m/z 2nd Highest
28
m/z 3rd Highest
31
Thumbnail
Thumbnail
2 of 2
Source of Spectrum
EK-1999-268-0
Copyright
Copyright © 2020-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail

6 Chemical Vendors

7 Safety and Hazards

7.1 Hazards Identification

7.1.1 GHS Classification

Pictogram(s)
Health Hazard
Signal
Danger
GHS Hazard Statements

H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H334 (100%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]

Precautionary Statement Codes

P233, P260, P264+P265, P271, P280, P284, P304+P340, P305+P351+P338, P337+P317, P342+P316, P403, and P501

(The corresponding statement to each P-code can be found at the GHS Classification page.)

ECHA C&L Notifications Summary

Aggregated GHS information provided per 38 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown.

7.1.2 Hazard Classes and Categories

Eye Irrit. 2 (100%)

Resp. Sens. 1 (100%)

8 Literature

8.1 Consolidated References

8.2 Springer Nature References

8.3 Thieme References

9 Patents

9.1 Depositor-Supplied Patent Identifiers

9.2 WIPO PATENTSCOPE

9.3 Chemical Co-Occurrences in Patents

9.4 Chemical-Disease Co-Occurrences in Patents

10 Classification

10.1 UN GHS Classification

10.2 EPA DSSTox Classification

10.3 MolGenie Organic Chemistry Ontology

11 Information Sources

  1. CAS Common Chemistry
    LICENSE
    The data from CAS Common Chemistry is provided under a CC-BY-NC 4.0 license, unless otherwise stated.
    https://creativecommons.org/licenses/by-nc/4.0/
  2. EPA DSSTox
    CompTox Chemicals Dashboard Chemical Lists
    https://comptox.epa.gov/dashboard/chemical-lists/
  3. European Chemicals Agency (ECHA)
    LICENSE
    Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is acknowledged as the source: "Source: European Chemicals Agency, http://echa.europa.eu/". Such acknowledgement must be included in each copy of the material. ECHA permits and encourages organisations and individuals to create links to the ECHA website under the following cumulative conditions: Links can only be made to webpages that provide a link to the Legal Notice page.
    https://echa.europa.eu/web/guest/legal-notice
  4. Japan Chemical Substance Dictionary (Nikkaji)
  5. NIST Mass Spectrometry Data Center
    LICENSE
    Data covered by the Standard Reference Data Act of 1968 as amended.
    https://www.nist.gov/srd/public-law
  6. SpectraBase
  7. Springer Nature
  8. Thieme Chemistry
    LICENSE
    The Thieme Chemistry contribution within PubChem is provided under a CC-BY-NC-ND 4.0 license, unless otherwise stated.
    https://creativecommons.org/licenses/by-nc-nd/4.0/
  9. Wikidata
  10. PubChem
  11. GHS Classification (UNECE)
  12. MolGenie
    MolGenie Organic Chemistry Ontology
    https://github.com/MolGenie/ontology/
  13. PATENTSCOPE (WIPO)
CONTENTS