An official website of the United States government

Acid orange 12

PubChem CID
135465070
Structure
Acid orange 12_small.png
Acid orange 12_3D_Structure.png
Molecular Formula
Synonyms
  • Crocein Orange G
  • Acid orange 12
  • 1934-20-9
  • Ponceau 4G
  • Croceine Orange
Molecular Weight
350.3 g/mol
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Dates
  • Create:
    2019-01-15
  • Modify:
    2024-12-28

1 Structures

1.1 2D Structure

Chemical Structure Depiction
Acid orange 12.png

1.2 3D Conformer

3D Conformer of Parent

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

sodium;6-hydroxy-5-phenyldiazenylnaphthalene-2-sulfonate
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/C16H12N2O4S.Na/c19-15-9-6-11-10-13(23(20,21)22)7-8-14(11)16(15)18-17-12-4-2-1-3-5-12;/h1-10,19H,(H,20,21,22);/q;+1/p-1
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

YOCIQNIEQYCORH-UHFFFAOYSA-M
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.4 SMILES

C1=CC=C(C=C1)N=NC2=C(C=CC3=C2C=CC(=C3)S(=O)(=O)[O-])O.[Na+]
Computed by OEChem 2.3.0 (PubChem release 2021.10.14)

2.2 Molecular Formula

C16H11N2NaO4S
Computed by PubChem 2.2 (PubChem release 2021.10.14)

2.3 Other Identifiers

2.3.1 CAS

1934-20-9

2.3.2 European Community (EC) Number

2.3.3 UNII

2.3.4 ChEMBL ID

2.3.5 DSSTox Substance ID

2.3.6 Nikkaji Number

2.3.7 Wikidata

2.4 Synonyms

2.4.1 MeSH Entry Terms

crocein orange G

2.4.2 Depositor-Supplied Synonyms

3 Chemical and Physical Properties

3.1 Computed Properties

Property Name
Molecular Weight
Property Value
350.3 g/mol
Reference
Computed by PubChem 2.2 (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
6
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
350.03372229 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
350.03372229 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
111Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
24
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
531
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
2
Reference
Computed by PubChem
Property Name
Compound Is Canonicalized
Property Value
Yes
Reference
Computed by PubChem (release 2021.10.14)

5 Chemical Vendors

6 Food Additives and Ingredients

6.1 Food Additive Classes

JECFA Functional Classes
Food Additives -> COLOUR;

6.2 Evaluations of the Joint FAO / WHO Expert Committee on Food Additives - JECFA

Chemical Name
ORANGE RN
Evaluation Year
1977
ADI
NO ADI ALLOCATED
Comments
The colour is little used and it is understood its use will be discontinued
Tox Monograph

7 Use and Manufacturing

7.1 Uses

7.1.1 Use Classification

Food Additives -> COLOUR; -> JECFA Functional Classes

7.2 General Manufacturing Information

EPA TSCA Commercial Activity Status
2-Naphthalenesulfonic acid, 6-hydroxy-5-(2-phenyldiazenyl)-, sodium salt (1:1): ACTIVE

8 Safety and Hazards

8.1 Regulatory Information

The Australian Inventory of Industrial Chemicals
Chemical: 2-Naphthalenesulfonic acid, 6-hydroxy-5-(phenylazo)-, monosodium salt
New Zealand EPA Inventory of Chemical Status
2-Naphthalenesulfonic acid, 6-hydroxy-5-(phenylazo)-, monosodium salt: 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.

9 Literature

9.1 Consolidated References

9.2 NLM Curated PubMed Citations

9.3 Springer Nature References

9.4 Chemical Co-Occurrences in Literature

9.5 Chemical-Gene Co-Occurrences in Literature

9.6 Chemical-Disease Co-Occurrences in Literature

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

10.5 Chemical-Gene Co-Occurrences in Patents

11 Biological Test Results

11.1 BioAssay Results

12 Classification

12.1 MeSH Tree

12.2 ChemIDplus

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. Australian Industrial Chemicals Introduction Scheme (AICIS)
    2-Naphthalenesulfonic acid, 6-hydroxy-5-(phenylazo)-, monosodium salt
    https://services.industrialchemicals.gov.au/search-inventory/
  2. ChemIDplus
    ChemIDplus Chemical Information Classification
    https://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
  3. EPA Chemicals under the TSCA
    2-Naphthalenesulfonic acid, 6-hydroxy-5-(2-phenyldiazenyl)-, sodium salt (1:1)
    https://www.epa.gov/chemicals-under-tsca
    EPA TSCA Classification
    https://www.epa.gov/tsca-inventory
  4. EPA DSSTox
    CompTox Chemicals Dashboard Chemical Lists
    https://comptox.epa.gov/dashboard/chemical-lists/
  5. 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
    Sodium 6-hydroxy-5-phenylazo-2-naphthalenesulphonate
    https://echa.europa.eu/substance-information/-/substanceinfo/100.016.090
  6. 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
  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. 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
  9. Japan Chemical Substance Dictionary (Nikkaji)
  10. Joint FAO/WHO Expert Committee on Food Additives (JECFA)
    LICENSE
    Permission from WHO is not required for the use of WHO materials issued under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Intergovernmental Organization (CC BY-NC-SA 3.0 IGO) licence.
    https://www.who.int/about/policies/publishing/copyright
  11. Springer Nature
  12. Wikidata
  13. PubChem
  14. Medical Subject Headings (MeSH)
    LICENSE
    Works produced by the U.S. government are not subject to copyright protection in the United States. Any such works found on National Library of Medicine (NLM) Web sites may be freely used or reproduced without permission in the U.S.
    https://www.nlm.nih.gov/copyright.html
  15. 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/
  16. EPA Substance Registry Services
  17. MolGenie
    MolGenie Organic Chemistry Ontology
    https://github.com/MolGenie/ontology/
  18. PATENTSCOPE (WIPO)
CONTENTS