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1,4-Dibromo-2,5-dimethylbenzene

PubChem CID
66175
Structure
1,4-Dibromo-2,5-dimethylbenzene_small.png
1,4-Dibromo-2,5-dimethylbenzene_3D_Structure.png
1,4-Dibromo-2,5-dimethylbenzene__Crystal_Structure.png
Molecular Formula
Synonyms
  • 1,4-Dibromo-2,5-dimethylbenzene
  • 1074-24-4
  • 2,5-Dibromo-p-xylene
  • Benzene, 1,4-dibromo-2,5-dimethyl-
  • p-Xylene, 2,5-dibromo-
Molecular Weight
263.96 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
1,4-Dibromo-2,5-dimethylbenzene.png

1.2 3D Conformer

1.3 Crystal Structures

1 of 3
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CCDC Number
Crystal Structure Data
Crystal Structure Depiction
Crystal Structure Depiction

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

1,4-dibromo-2,5-dimethylbenzene
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/C8H8Br2/c1-5-3-8(10)6(2)4-7(5)9/h3-4H,1-2H3
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

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

2.1.4 SMILES

CC1=CC(=C(C=C1Br)C)Br
Computed by OEChem 2.3.0 (PubChem release 2021.10.14)

2.2 Molecular Formula

C8H8Br2
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 NSC Number

2.3.6 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
263.96 g/mol
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
XLogP3-AA
Property Value
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
263.89723 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
261.89928 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
0Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
10
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
99.8
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)

3.2 SpringerMaterials Properties

4 Spectral Information

4.1 1D NMR Spectra

1D NMR Spectra

4.1.1 1H NMR Spectra

1 of 2
Instrument Name
Varian A-60
Source of Sample
Aldrich Chemical Company, Inc., Milwaukee, Wisconsin
Copyright
Copyright © 2009-2024 John Wiley & Sons, Inc. All Rights Reserved.
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2 of 2
Source of Spectrum
Sigma-Aldrich Co. LLC.
Source of Sample
Sigma-Aldrich Co. LLC.
Catalog Number
116157
Copyright
Copyright © 2021-2024 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2021 John Wiley & Sons, Inc. All Rights Reserved.
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4.1.2 13C NMR Spectra

1 of 2
Source of Sample
Aldrich Chemical Company, Inc., Milwaukee, Wisconsin
Copyright
Copyright © 1980, 1981-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
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2 of 2
Instrument Name
Varian CFT-20
Copyright
Copyright © 2002-2024 Wiley-VCH Verlag GmbH & Co. KGaA. All Rights Reserved.
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4.2 Mass Spectrometry

4.2.1 GC-MS

1 of 4
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NIST Number
107287
Library
Main library
Total Peaks
93
m/z Top Peak
264
m/z 2nd Highest
183
m/z 3rd Highest
185
Thumbnail
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2 of 4
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NIST Number
237852
Library
Replicate library
Total Peaks
97
m/z Top Peak
264
m/z 2nd Highest
262
m/z 3rd Highest
183
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4.3 IR Spectra

4.3.1 FTIR Spectra

1 of 2
Technique
CAPILLARY CELL: MELT
Source of Sample
Aldrich Chemical Company, Inc., Milwaukee, Wisconsin
Copyright
Copyright © 1980, 1981-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail
2 of 2
Technique
Mull
Source of Spectrum
Sigma-Aldrich Co. LLC.
Source of Sample
Aldrich
Catalog Number
116157
Copyright
Copyright © 2018-2024 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2018-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
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4.3.2 ATR-IR Spectra

Source of Sample
Aldrich
Catalog Number
116157
Copyright
Copyright © 2018-2024 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2018-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
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4.3.3 Vapor Phase IR Spectra

1 of 2
Instrument Name
DIGILAB FTS-14
Technique
Vapor Phase
Copyright
Copyright © 1980, 1981-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail
2 of 2
Source of Spectrum
Sigma-Aldrich Co. LLC.
Source of Sample
Sigma-Aldrich Co. LLC.
Catalog Number
116157
Copyright
Copyright © 2021-2024 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2021 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
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4.4 Raman Spectra

Catalog Number
116157
Copyright
Copyright © 2017-2024 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2017-2024 John Wiley & Sons, Inc. All Rights Reserved.
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6 Chemical Vendors

7 Use and Manufacturing

7.1 General Manufacturing Information

EPA TSCA Commercial Activity Status
Benzene, 1,4-dibromo-2,5-dimethyl-: ACTIVE

8 Safety and Hazards

8.1 Hazards Identification

8.1.1 GHS Classification

Pictogram(s)
Irritant
Environmental Hazard
Signal
Warning
GHS Hazard Statements

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

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

H335 (97.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

H411 (84.8%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statement Codes

P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P391, 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

Aggregated GHS information provided per 46 reports by companies from 6 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.

8.1.2 Hazard Classes and Categories

Skin Irrit. 2 (100%)

Eye Irrit. 2A (100%)

STOT SE 3 (97.8%)

Aquatic Chronic 2 (84.8%)

9 Literature

9.1 Consolidated References

9.2 Springer Nature References

9.3 Thieme References

10 Patents

10.1 Depositor-Supplied Patent Identifiers

10.2 WIPO PATENTSCOPE

10.3 Chemical Co-Occurrences in Patents

10.4 Chemical-Disease Co-Occurrences in Patents

11 Biological Test Results

11.1 BioAssay Results

12 Classification

12.1 ChemIDplus

12.2 UN GHS Classification

12.3 NORMAN Suspect List Exchange Classification

12.4 EPA DSSTox Classification

12.5 EPA TSCA and CDR Classification

12.6 EPA Substance Registry Services Tree

12.7 MolGenie Organic Chemistry Ontology

13 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. ChemIDplus
    ChemIDplus Chemical Information Classification
    https://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
  3. 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
  4. EPA Chemicals under the TSCA
    Benzene, 1,4-dibromo-2,5-dimethyl-
    https://www.epa.gov/chemicals-under-tsca
    EPA TSCA Classification
    https://www.epa.gov/tsca-inventory
  5. EPA DSSTox
    Benzene, 1,4-dibromo-2,5-dimethyl-
    https://comptox.epa.gov/dashboard/DTXSID9061467
    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. Crystallography Open Database (COD)
    LICENSE
    All data in the COD and the database itself are dedicated to the public domain and licensed under the CC0 License. Users of the data should acknowledge the original authors of the structural data.
    https://creativecommons.org/publicdomain/zero/1.0/
  8. The Cambridge Structural Database
  9. Japan Chemical Substance Dictionary (Nikkaji)
  10. 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
    Benzene, 1,4-dibromo-2,5-dimethyl-
    http://www.nist.gov/srd/nist1a.cfm
  11. SpectraBase
    Benzene, 1,4-dibromo-2,5-dimethyl-
    https://spectrabase.com/spectrum/9XLPplMpoCC
    Benzene, 1,4-dibromo-2,5-dimethyl-
    https://spectrabase.com/spectrum/Bwgnw1iOa3l
    1,4-Dibromo-2,5-dimethylbenzene
    https://spectrabase.com/spectrum/FsOa1seftx6
    1,4-Dibromo-2,5-dimethylbenzene
    https://spectrabase.com/spectrum/8CYt23l4XiT
    1,4-Dibromo-2,5-dimethylbenzene
    https://spectrabase.com/spectrum/DQxNlOq7vIg
    1,4-Dibromo-2,5-dimethylbenzene
    https://spectrabase.com/spectrum/77Yq4y3hVkP
    1,4-Dibromo-2,5-dimethylbenzene
    https://spectrabase.com/spectrum/EO5Eon9l1QB
  12. NMRShiftDB
  13. Springer Nature
  14. SpringerMaterials
  15. 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/
  16. Wikidata
    1,4-Dibromo-2,5-dimethylbenzene
    https://www.wikidata.org/wiki/Q72464208
  17. PubChem
  18. GHS Classification (UNECE)
  19. NORMAN Suspect List Exchange
    LICENSE
    Data: CC-BY 4.0; Code (hosted by ECI, LCSB): Artistic-2.0
    https://creativecommons.org/licenses/by/4.0/
    NORMAN Suspect List Exchange Classification
    https://www.norman-network.com/nds/SLE/
  20. EPA Substance Registry Services
  21. MolGenie
    MolGenie Organic Chemistry Ontology
    https://github.com/MolGenie/ontology/
  22. PATENTSCOPE (WIPO)
CONTENTS