An official website of the United States government

Spiro[2.2]penta-1,4-diene

PubChem CID
14901520
Structure
Spiro[2.2]penta-1,4-diene_small.png
Spiro[2.2]penta-1,4-diene_3D_Structure.png
Molecular Formula
Synonyms
  • Spiropentadiene
  • Spiro[2.2]penta-1,4-diene
  • 1727-65-7
  • Spiro[2.2]pentadiene
  • Spiropenta-1,4-diene
Molecular Weight
64.08 g/mol
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Dates
  • Create:
    2007-02-09
  • Modify:
    2025-01-11

1 Structures

1.1 2D Structure

Chemical Structure Depiction
Spiro[2.2]penta-1,4-diene.png

1.2 3D Conformer

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

spiro[2.2]penta-1,4-diene
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/C5H4/c1-2-5(1)3-4-5/h1-4H
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

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

2.1.4 SMILES

C1=CC12C=C2
Computed by OEChem 2.3.0 (PubChem release 2024.12.12)

2.2 Molecular Formula

C5H4
Computed by PubChem 2.2 (PubChem release 2021.10.14)

2.3 Other Identifiers

2.3.1 CAS

2.3.2 UNII

2.3.3 DSSTox Substance ID

2.3.4 Nikkaji Number

2.3.5 Wikidata

2.3.6 Wikipedia

2.4 Synonyms

2.4.1 Depositor-Supplied Synonyms

3 Chemical and Physical Properties

3.1 Computed Properties

Property Name
Molecular Weight
Property Value
64.08 g/mol
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
XLogP3-AA
Property Value
1.4
Reference
Computed by XLogP3 3.0 (PubChem release 2021.10.14)
Property Name
Hydrogen Bond Donor Count
Property Value
0
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Hydrogen Bond Acceptor Count
Property Value
0
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
64.0313001276 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
64.0313001276 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
0 Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
5
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
86.5
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 13C NMR Spectra

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

6 Chemical Vendors

7 Literature

7.1 Consolidated References

7.2 Springer Nature References

7.3 Thieme References

7.4 Chemical Co-Occurrences in Literature

8 Patents

8.1 Depositor-Supplied Patent Identifiers

8.2 WIPO PATENTSCOPE

8.3 Chemical Co-Occurrences in Patents

9 Classification

9.1 EPA DSSTox Classification

10 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. FDA Global Substance Registration System (GSRS)
    LICENSE
    Unless otherwise noted, the contents of the FDA website (www.fda.gov), both text and graphics, are not copyrighted. They are in the public domain and may be republished, reprinted and otherwise used freely by anyone without the need to obtain permission from FDA. Credit to the U.S. Food and Drug Administration as the source is appreciated but not required.
    https://www.fda.gov/about-fda/about-website/website-policies#linking
  4. Japan Chemical Substance Dictionary (Nikkaji)
  5. SpectraBase
  6. Springer Nature
  7. 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/
  8. Wikidata
  9. Wikipedia
  10. PubChem
  11. PATENTSCOPE (WIPO)
CONTENTS