An official website of the United States government

5,7-Dihydroxycoumarin

PubChem CID
5324654
Structure
5,7-Dihydroxycoumarin_small.png
5,7-Dihydroxycoumarin_3D_Structure.png
Molecular Formula
Synonyms
  • 5,7-Dihydroxycoumarin
  • 5,7-dihydroxy-2H-chromen-2-one
  • 2732-18-5
  • 5,7-dihydroxychromen-2-one
  • MFCD00488354
Molecular Weight
178.14 g/mol
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Dates
  • Create:
    2005-03-26
  • Modify:
    2025-01-25
Description
5,7-Dihydroxycoumarin has been reported in Haplophyllum dauricum, Fagopyrum megacarpum, and other organisms with data available.

1 Structures

1.1 2D Structure

Chemical Structure Depiction
5,7-Dihydroxycoumarin.png

1.2 3D Conformer

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

5,7-dihydroxychromen-2-one
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/C9H6O4/c10-5-3-7(11)6-1-2-9(12)13-8(6)4-5/h1-4,10-11H
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

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

2.1.4 SMILES

C1=CC(=O)OC2=CC(=CC(=C21)O)O
Computed by OEChem 2.3.0 (PubChem release 2024.12.12)

2.2 Molecular Formula

C9H6O4
Computed by PubChem 2.2 (PubChem release 2021.10.14)

2.3 Other Identifiers

2.3.1 CAS

2732-18-5

2.3.2 European Community (EC) Number

2.3.3 ChEMBL ID

2.3.4 DSSTox Substance ID

2.3.5 Metabolomics Workbench ID

2.3.6 Nikkaji Number

2.3.7 NSC Number

2.3.8 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
178.14 g/mol
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
XLogP3-AA
Property Value
1.2
Reference
Computed by XLogP3 3.0 (PubChem release 2021.10.14)
Property Name
Hydrogen Bond Donor Count
Property Value
2
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
0
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Exact Mass
Property Value
178.02660867 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
178.02660867 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
66.8 Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
13
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
248
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

1D NMR Spectra

4.1.1 13C NMR Spectra

1 of 2
Copyright
Copyright © 2016-2024 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Thumbnail
Thumbnail
2 of 2
Copyright
Copyright © 2016-2024 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Thumbnail
Thumbnail

4.2 Mass Spectrometry

4.2.1 LC-MS

MS Category
Experimental
MS Type
LC-MS
MS Level
MS2
Precursor Type
[M+H]+
Precursor m/z
179.033
Instrument
qTof
Ionization Mode
positive
Top 5 Peaks

179.030670 100

180.037964 77.34

181.044601 22.06

123.041916 19.82

124.049927 4.41

Thumbnail
Thumbnail

4.2.2 Other MS

1 of 3
View All
MS Category
Experimental
MS Type
Other
Precursor Type
[M-H]-
Top 5 Peaks

177.01834106445312 19027996

133.02828979492188 1953883.25

109.0281753540039 545631.81

89.03840637207031 319579.16

176.98126220703125 228260.67

Thumbnail
Thumbnail
2 of 3
View All
MS Category
Experimental
MS Type
Other
MS Level
MS2
Precursor Type
[M+H]+
Precursor m/z
179.03362400891334
Ionization Mode
positive
Retention Time
2.0245787197964256
Top 5 Peaks

179.0336151123047 100

135.04380798339844 4.47

123.0438232421875 2.15

179.12550354003906 0.84

179.0710906982422 0.83

Thumbnail
Thumbnail

6 Chemical Vendors

7 Safety and Hazards

7.1 Hazards Identification

7.1.1 GHS Classification

Pictogram(s)
Irritant
Signal
Warning
GHS Hazard Statements

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]

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

H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statement Codes

P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

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

ECHA C&L Notifications Summary
The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

7.1.2 Hazard Classes and Categories

Acute Tox. 4 (100%)

Skin Irrit. 2 (100%)

Eye Irrit. 2A (100%)

STOT SE 3 (100%)

7.2 Regulatory Information

New Zealand EPA Inventory of Chemical Status
2H-1-Benzopyran-2-one, 5,7-dihydroxy-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

8 Literature

8.1 Consolidated References

8.2 Springer Nature References

8.3 Thieme References

8.4 Chemical Co-Occurrences in Literature

8.5 Chemical-Gene Co-Occurrences in Literature

8.6 Chemical-Disease Co-Occurrences in Literature

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

9.5 Chemical-Gene Co-Occurrences in Patents

10 Interactions and Pathways

10.1 Chemical-Target Interactions

11 Biological Test Results

11.1 BioAssay Results

12 Taxonomy

The LOTUS Initiative for Open Natural Products Research: frozen dataset union wikidata (with metadata) | DOI:10.5281/zenodo.5794106

13 Classification

13.1 ChemIDplus

13.2 UN GHS Classification

13.3 EPA DSSTox Classification

13.4 LOTUS Tree

13.5 MolGenie Organic Chemistry Ontology

14 Information Sources

  1. BindingDB
    LICENSE
    All data curated by BindingDB staff are provided under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/us/).
    https://www.bindingdb.org/rwd/bind/info.jsp
  2. ChEMBL
    LICENSE
    Access to the web interface of ChEMBL is made under the EBI's Terms of Use (http://www.ebi.ac.uk/Information/termsofuse.html). The ChEMBL data is made available on a Creative Commons Attribution-Share Alike 3.0 Unported License (http://creativecommons.org/licenses/by-sa/3.0/).
    http://www.ebi.ac.uk/Information/termsofuse.html
  3. ChemIDplus
    ChemIDplus Chemical Information Classification
    https://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
  4. DTP/NCI
    LICENSE
    Unless otherwise indicated, all text within NCI products is free of copyright and may be reused without our permission. Credit the National Cancer Institute as the source.
    https://www.cancer.gov/policies/copyright-reuse
  5. EPA DSSTox
    2H-1-Benzopyran-2-one, 5,7-dihydroxy-
    https://comptox.epa.gov/dashboard/DTXSID80181765
    CompTox Chemicals Dashboard Chemical Lists
    https://comptox.epa.gov/dashboard/chemical-lists/
  6. 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
  7. New Zealand Environmental Protection Authority (EPA)
    LICENSE
    This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International licence.
    https://www.epa.govt.nz/about-this-site/general-copyright-statement/
  8. Japan Chemical Substance Dictionary (Nikkaji)
  9. KNApSAcK Species-Metabolite Database
  10. LOTUS - the natural products occurrence database
    LICENSE
    The code for LOTUS is released under the GNU General Public License v3.0.
    https://lotus.nprod.net/
  11. Natural Product Activity and Species Source (NPASS)
  12. MassBank of North America (MoNA)
    LICENSE
    The content of the MoNA database is licensed under CC BY 4.0.
    https://mona.fiehnlab.ucdavis.edu/documentation/license
  13. Metabolomics Workbench
  14. NMRShiftDB
  15. SpectraBase
  16. Springer Nature
  17. 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/
  18. Wikidata
  19. PubChem
  20. GHS Classification (UNECE)
  21. MolGenie
    MolGenie Organic Chemistry Ontology
    https://github.com/MolGenie/ontology/
  22. PATENTSCOPE (WIPO)
CONTENTS