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Phthalocyanine green

PubChem CID
169274
Structure
Phthalocyanine green_small.png
Molecular Formula
Synonyms
  • PHTHALOCYANINE GREEN
  • Heliogen Green G
  • Colanyl Green GG
  • 31235-28-6
  • BPO9294G4W
Molecular Weight
1092.7 g/mol
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Parent Compound
Dates
  • Create:
    2005-08-08
  • Modify:
    2025-01-25
Description
C.i. pigment green 7 is a green powder. (NTP, 1992)
National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

1 Structures

1.1 2D Structure

Chemical Structure Depiction
Phthalocyanine green.png

1.2 3D Status

Conformer generation is disallowed since too many atoms, MMFF94s unsupported element, mixture or salt

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

copper;5,6,7,8,14,15,16,17,23,24,25,32,33,34,35-pentadecachloro-2,11,20,29,37,39-hexaza-38,40-diazanidanonacyclo[28.6.1.13,10.112,19.121,28.04,9.013,18.022,27.031,36]tetraconta-1,3,5,7,9,11,13(18),14,16,19(39),20,22,24,26,28,30(37),31(36),32,34-nonadecaene
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/C32HCl15N8.Cu/c33-3-1-2-4(12(35)11(3)34)26-48-25(2)49-27-5-6(14(37)20(43)19(42)13(5)36)29(51-27)53-31-9-10(18(41)24(47)23(46)17(9)40)32(55-31)54-30-8-7(28(50-26)52-30)15(38)21(44)22(45)16(8)39;/h1H;/q-2;+2
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

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

2.1.4 SMILES

C1=C2C(=C(C(=C1Cl)Cl)Cl)C3=NC4=NC(=NC5=C6C(=C([N-]5)N=C7C8=C(C(=C(C(=C8Cl)Cl)Cl)Cl)C(=N7)N=C2[N-]3)C(=C(C(=C6Cl)Cl)Cl)Cl)C9=C4C(=C(C(=C9Cl)Cl)Cl)Cl.[Cu+2]
Computed by OEChem 2.3.0 (PubChem release 2024.12.12)

2.2 Molecular Formula

C32HCl15CuN8
Computed by PubChem 2.2 (PubChem release 2021.10.14)

2.3 Other Identifiers

2.3.1 CAS

1328-53-6

2.3.2 Deprecated CAS

104492-02-6, 108137-02-6, 109319-61-1, 11118-59-5, 11129-83-2, 12224-95-2, 12240-11-8, 12619-69-1, 127546-06-9, 128281-89-0, 16143-81-0, 179671-47-7, 194554-64-8, 37340-12-8, 39362-52-2, 39380-65-9, 50642-99-4, 51653-13-5, 52499-70-4, 64333-62-6, 67053-86-5, 72779-62-5, 73560-40-4, 81180-93-0, 85256-45-7, 90651-64-2, 914378-31-7, 97380-88-6

2.3.3 European Community (EC) Number

2.3.4 UNII

2.3.5 RXCUI

2.3.6 Wikidata

2.4 Synonyms

2.4.1 MeSH Entry Terms

phthalocyanine green

2.4.2 Depositor-Supplied Synonyms

3 Chemical and Physical Properties

3.1 Computed Properties

Property Name
Molecular Weight
Property Value
1092.7 g/mol
Reference
Computed by PubChem 2.2 (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
8
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
1090.485954 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
1084.494805 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
79.3 Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
56
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
1440
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)

3.2 Experimental Properties

3.2.1 Physical Description

C.i. pigment green 7 is a green powder. (NTP, 1992)
National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.
Dry Powder, Liquid, Other Solid; Dry Powder, Water or Solvent Wet Solid; Other Solid; Dry Powder; Liquid; Dry Powder, Liquid; NKRA
Bright green pigment; [Hawley] Green solid; [CAMEO] Green odorless powder; [MSDSonline]

3.2.2 Color / Form

BRIGHT GREEN
Hawley, G.G. The Condensed Chemical Dictionary. 9th ed. New York: Van Nostrand Reinhold Co., 1977., p. 687

3.2.3 Solubility

less than 1 mg/mL at 70 °F (NTP, 1992)
National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

3.3 Chemical Classes

Dyes -> Phthalocyanine Dyes

3.3.1 Cosmetics

Cosmetic colorant
S13 | EUCOSMETICS | Combined Inventory of Ingredients Employed in Cosmetic Products (2000) and Revised Inventory (2006) | DOI:10.5281/zenodo.2624118

3.3.2 Food Additives

Devices -> FDA Regulatory Status of Color Additives

5 Chemical Vendors

6 Food Additives and Ingredients

6.1 Color Additive Status

Color Additive
Use
Devices
Restrictions
Contact lenses.
End Note
1 - The color additives Antarctic krill meal, Astaxanthin, Astaxanthin dimethyldisuccinate, Ultramarine blue, Canthaxanthin, Haematococcus algae meal, Synthetic iron oxide, Dried algae meal, Tagetes (Aztec marigold) meal and extract, Corn endosperm oil, Paracoccus pigment, and Phaffia yeast are approved for specific uses in animal food (see 21 CFR 73.32. 73.35, 73.37, 73.50, 73.75, 73.185, 73.200, 73.275, 73.295, 73.315, 73.352, and 73.355, respectively).
Color additive regulations in 21 eCFR
Other regulations in 21 eCFR

7 Use and Manufacturing

7.1 Uses

Sources/Uses
Used as pigment in chalks, colored pencils, plastics, paints, printing inks, lacquers, linoleum, leather and book cloth, paper surfacing, wallpaper, and rubber; [HSDB]
Industrial Processes with risk of exposure
CHALKS; COLORED PENCILS
Hawley, G.G. The Condensed Chemical Dictionary. 9th ed. New York: Van Nostrand Reinhold Co., 1977., p. 687
PIGMENT FOR PLASTICS, PAINTS, PRINTING INKS, LACQUERS, LINOLEUM, LEATHERCLOTH & BOOKCLOTH, PAPER SURFACING, WALLPAPER, RUBBER
SRI

7.1.1 Use Classification

EPA Safer Chemical Functional Use Classes -> Colorants
Safer Chemical Classes -> Green circle Green circle - The chemical has been verified to be of low concern
Cosmetics -> Cosmetic colorant
S13 | EUCOSMETICS | Combined Inventory of Ingredients Employed in Cosmetic Products (2000) and Revised Inventory (2006) | DOI:10.5281/zenodo.2624118

7.1.2 Industry Uses

  • Pigment
  • Dyes
  • Pigments
  • Paint additives and coating additives not described by other categories

7.1.3 Consumer Uses

  • Adhesion/cohesion promoter
  • Pigment
  • Not Known or Reasonably Ascertainable
  • Dyes
  • Pigments
  • Paint additives and coating additives not described by other categories
  • Agricultural chemicals (non-pesticidal)

7.1.4 Household Products

Household & Commercial/Institutional Products

Information on 31 consumer products that contain Phthalocyanine Green in the following categories is provided:

• Home Maintenance

• Inside the Home

7.2 Methods of Manufacturing

CHLORINATION OF COPPER PHTHALOCYANINE WITH CHLORINE IN A EUTECTIC MIXTURE OF SODIUM AND ALUMINUM CHLORIDES WITH FERRIC OR CUPRIC CHLORIDE AS A CATALYST, OR IN MOLTEN PHTHALIC ANHYDRIDE, OR SUSPENDED IN A "FLUIDIZED BED"; REACTION OF COPPER PHTHALOCYANINE IN SULFUR DICHLORIDE
SRI
HEATING COPPER PHTHALOCYANINE IN SULFUR DICHLORIDE UNDER PRESSURE.
Hawley, G.G. The Condensed Chemical Dictionary. 9th ed. New York: Van Nostrand Reinhold Co., 1977., p. 687

7.3 Formulations / Preparations

MEETS ANSI Z 66.1 SPECIFICATION.
Gosselin, R.E., H.C. Hodge, R.P. Smith, and M.N. Gleason. Clinical Toxicology of Commercial Products. 4th ed. Baltimore: Williams and Wilkins, 1976., p. VI-177

7.4 Consumption Patterns

ESSENTIALLY 100% AS A PIGMENT
SRI

7.5 U.S. Production

Aggregated Product Volume

2019: 1,000,000 - <10,000,000 lb

2018: 1,000,000 - <10,000,000 lb

2017: 1,000,000 - <10,000,000 lb

2016: 1,000,000 - <10,000,000 lb

(1977) 1.35X10+9 GRAMS
SRI
(1979) 1.47X10+9 GRAMS
SRI

7.6 U.S. Imports

(1977) 6.66X10+8 GRAMS (PRINCPL CUSTMS DISTS)
SRI
(1979) 4.52X10+8 GRAMS (PRINCPL CUSTMS DISTS)
SRI

7.7 U.S. Exports

(1977) No Data
SRI
(1979) No Data
SRI

7.8 General Manufacturing Information

Industry Processing Sectors
  • Wholesale and Retail Trade
  • Miscellaneous Manufacturing
  • Paint and Coating Manufacturing
  • Synthetic Dye and Pigment Manufacturing
  • Printing Ink Manufacturing
  • Plastics Product Manufacturing
  • Not Known or Reasonably Ascertainable
  • Plastics Material and Resin Manufacturing
  • Construction
  • Custom Compounding of Purchased Resins
  • All Other Chemical Product and Preparation Manufacturing
  • Printing and Related Support Activities
EPA TSCA Commercial Activity Status
C.I. Pigment Green 7: ACTIVE
EPA TSCA Commercial Activity Status
Copper, [1,2,3,4,8,9,10,11,15,16,17,18,22,23,24-pentadecachloro-29H,31H-phthalocyaninato(2-)-.kappa.N29,.kappa.N30,.kappa.N31,.kappa.N32]-, (SP-4-2)-: INACTIVE
BRIGHT GREEN CHLORINATED COPPER PHTHALOCYANINE PIGMENT...
Hawley, G.G. The Condensed Chemical Dictionary. 9th ed. New York: Van Nostrand Reinhold Co., 1977., p. 687

8 Safety and Hazards

8.1 Hazards Identification

8.1.1 GHS Classification

GHS Hazard Statements
Not Classified

8.1.2 EPA Safer Chemical

Chemical: C.I. Pigment Green 7

Green circle Green circle - The chemical has been verified to be of low concern based on experimental and modeled data.

8.1.3 Fire Hazards

Flash point data for this compound are not available; it is probably combustible. (NTP, 1992)
National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

8.1.4 Hazards Summary

Chlorinated copper phthalocyanine pigment; [Hawley] Not irritating to skin or eyes, based on animal studies; [IUCLID] May cause mild eye irritation; [MSDSonline] See Phthalocyanine.
Hawley - Lewis RJ. _Hawley's Condensed Chemical Dictionary, _15th Ed. New York: John Wiley & Sons, 2007.

8.2 First Aid Measures

8.2.1 First Aid

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

8.3 Fire Fighting

Fires involving this compound can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)
National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

8.4 Handling and Storage

8.4.1 Nonfire Spill Response

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with 5% acetic acid, then transfer the dampened material to a suitable container. Use absorbent paper dampened with 5% acetic acid to pick up any remaining material. Your contaminated clothing and the absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with 5% acetic acid followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should store this material in a refrigerator. (NTP, 1992)

National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

8.5 Exposure Control and Personal Protection

8.5.1 Personal Protective Equipment (PPE)

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)
National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

8.6 Stability and Reactivity

8.6.1 Air and Water Reactions

Insoluble in water.

8.6.2 Reactive Group

Amines, Phosphines, and Pyridines

Non-Redox-Active Inorganic Compounds

Aryl Halides

8.6.3 Reactivity Profile

Likely to behave as a weak base in aqueous solution.

8.7 Regulatory Information

The Australian Inventory of Industrial Chemicals
Chemical: C.I. Pigment Green 7
New Zealand EPA Inventory of Chemical Status
C.I. Pigment Green 7: Does not have an individual approval but may be used under an appropriate group standard

8.8 Other Safety Information

Chemical Assessment
IMAP assessments - C.I. Pigment Green 7: Human health tier I assessment

9 Toxicity

9.1 Toxicological Information

9.1.1 Acute Effects

9.1.2 Ongoing Test Status

The following link will take the user to the National Toxicology Program (NTP) Test Agent Search Results page, which tabulates all of the "Standard Toxicology & Carcinogenesis Studies", "Developmental Studies", and "Genetic Toxicity Studies" performed with this chemical. Clicking on the "Testing Status" link will take the user to the status (i.e., in review, in progress, in preparation, on test, completed, etc.) and results of all the studies that the NTP has done on this chemical. [http://ntp-apps.niehs.nih.gov/ntp_tox/index.cfm?fuseaction=ntpsearch.searchresults&searchterm=1328-53-6]

10 Literature

10.1 Consolidated References

10.2 NLM Curated PubMed Citations

10.3 Chemical Co-Occurrences in Literature

10.4 Chemical-Gene Co-Occurrences in Literature

10.5 Chemical-Disease Co-Occurrences in Literature

11 Patents

11.1 Chemical Co-Occurrences in Patents

11.2 Chemical-Disease Co-Occurrences in Patents

11.3 Chemical-Gene Co-Occurrences in Patents

12 Biological Test Results

12.1 BioAssay Results

13 Classification

13.1 MeSH Tree

13.2 ChemIDplus

13.3 UN GHS Classification

13.4 NORMAN Suspect List Exchange Classification

13.5 Consumer Product Information Database Classification

13.6 EPA TSCA and CDR Classification

13.7 EPA Substance Registry Services Tree

13.8 MolGenie Organic Chemistry Ontology

14 Information Sources

  1. Australian Industrial Chemicals Introduction Scheme (AICIS)
  2. CAMEO Chemicals
    LICENSE
    CAMEO Chemicals and all other CAMEO products are available at no charge to those organizations and individuals (recipients) responsible for the safe handling of chemicals. However, some of the chemical data itself is subject to the copyright restrictions of the companies or organizations that provided the data.
    https://cameochemicals.noaa.gov/help/reference/terms_and_conditions.htm?d_f=false
  3. 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/
    (SP-4-2)-[1,2,3,4,8,9,10,11,15,16,17,18,22,23,24-Pentadecachloro-29H,31H-phthalocyaninato(2-)-κN29,κN30,κN31,κN32]copper
    https://commonchemistry.cas.org/detail?cas_rn=31235-28-6
  4. ChemIDplus
    ChemIDplus Chemical Information Classification
    https://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
  5. EPA Chemical Data Reporting (CDR)
    LICENSE
    The U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce these documents, or allow others to do so, for U.S. Government purposes. These documents may be freely distributed and used for non-commercial, scientific and educational purposes.
    https://www.epa.gov/web-policies-and-procedures/epa-disclaimers#copyright
  6. EPA Chemicals under the TSCA
    EPA TSCA Classification
    https://www.epa.gov/tsca-inventory
  7. 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
    [1,2,3,4,8,9,10,11,15,16,17,18,22,23,24-pentadecachlorophthalocyaninato(2-)]copper
    https://echa.europa.eu/substance-information/-/substanceinfo/100.045.915
  8. 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
  9. Hazardous Substances Data Bank (HSDB)
  10. 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/
  11. Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
    LICENSE
    Copyright (c) 2022 Haz-Map(R). All rights reserved. Unless otherwise indicated, all materials from Haz-Map are copyrighted by Haz-Map(R). No part of these materials, either text or image may be used for any purpose other than for personal use. Therefore, reproduction, modification, storage in a retrieval system or retransmission, in any form or by any means, electronic, mechanical or otherwise, for reasons other than personal use, is strictly prohibited without prior written permission.
    https://haz-map.com/About
  12. Consumer Product Information Database (CPID)
    LICENSE
    Copyright (c) 2024 DeLima Associates. All rights reserved. Unless otherwise indicated, all materials from CPID are copyrighted by DeLima Associates. No part of these materials, either text or image may be used for any purpose other than for personal use. Therefore, reproduction, modification, storage in a retrieval system or retransmission, in any form or by any means, electronic, mechanical or otherwise, for reasons other than personal use, is strictly prohibited without prior written permission.
    https://www.whatsinproducts.com/contents/view/1/6
    Consumer Products Category Classification
    https://www.whatsinproducts.com/
  13. EPA Safer Choice
  14. 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/
  15. FDA Regulatory Status of Color Additives
  16. NITE-CMC
    Phthalocyanine Green - FY2016 (New/original classication)
    https://www.chem-info.nite.go.jp/chem/english/ghs/16-mhlw-0044e.html
  17. NLM RxNorm Terminology
    LICENSE
    The RxNorm Terminology is created by the National Library of Medicine (NLM) and is in the public domain and may be republished, reprinted and otherwise used freely by anyone without the need to obtain permission from NLM. Credit to the U.S. National Library of Medicine as the source is appreciated but not required. The full RxNorm dataset requires a free license.
    https://www.nlm.nih.gov/research/umls/rxnorm/docs/termsofservice.html
  18. Wikidata
    Copper(2+) 1,2,3,4,9,10,11,15,16,17,18,22,23,24,25-pentadecachlorophthalocyanine-6,29-diide
    https://www.wikidata.org/wiki/Q82932110
  19. PubChem
  20. 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
  21. GHS Classification (UNECE)
  22. EPA Substance Registry Services
  23. MolGenie
    MolGenie Organic Chemistry Ontology
    https://github.com/MolGenie/ontology/
CONTENTS