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Papaverine Hydrochloride

PubChem CID
6084
Structure
Papaverine Hydrochloride_small.png
Papaverine Hydrochloride_3D_Structure.png
Molecular Formula
Synonyms
  • PAPAVERINE HYDROCHLORIDE
  • 61-25-6
  • Cardoverina
  • Artegodan
  • Cardiospan
Molecular Weight
375.8 g/mol
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Parent Compound
Dates
  • Create:
    2005-03-27
  • Modify:
    2025-02-01
Description
Papaverine hydrochloride is a white powder. pH (0.05 molar solution) 3.9. pH (2% aqueous solution) 3.3. (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.
PAPAVERINE HYDROCHLORIDE is a small molecule drug with a maximum clinical trial phase of IV (across all indications) and has 2 investigational indications.
An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels.
See also: Papaverine (has active moiety).

1 Structures

1.1 2D Structure

Chemical Structure Depiction
Papaverine Hydrochloride.png

1.2 3D Conformer

3D Conformer of Parent

2 Names and Identifiers

2.1 Computed Descriptors

2.1.1 IUPAC Name

1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxyisoquinoline;hydrochloride
Computed by Lexichem TK 2.7.0 (PubChem release 2021.10.14)

2.1.2 InChI

InChI=1S/C20H21NO4.ClH/c1-22-17-6-5-13(10-18(17)23-2)9-16-15-12-20(25-4)19(24-3)11-14(15)7-8-21-16;/h5-8,10-12H,9H2,1-4H3;1H
Computed by InChI 1.0.6 (PubChem release 2021.10.14)

2.1.3 InChIKey

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

2.1.4 SMILES

COC1=C(C=C(C=C1)CC2=NC=CC3=CC(=C(C=C32)OC)OC)OC.Cl
Computed by OEChem 2.3.0 (PubChem release 2024.12.12)

2.2 Molecular Formula

C20H21NO4.ClH
C20H22ClNO4
Computed by PubChem 2.2 (PubChem release 2021.10.14)

2.3 Other Identifiers

2.3.1 CAS

61-25-6

2.3.3 European Community (EC) Number

2.3.4 UNII

2.3.5 UN Number

2.3.6 ChEMBL ID

2.3.7 DSSTox Substance ID

2.3.8 KEGG ID

2.3.9 Metabolomics Workbench ID

2.3.10 NCI Thesaurus Code

2.3.11 NSC Number

2.3.12 RXCUI

2.3.13 Wikidata

2.4 Synonyms

2.4.1 MeSH Entry Terms

  • Cerespan
  • Hydrochloride, Papaverine
  • Papaverine
  • Papaverine Hydrochloride
  • Pavabid
  • Pavatym

2.4.2 Depositor-Supplied Synonyms

3 Chemical and Physical Properties

3.1 Computed Properties

Property Name
Molecular Weight
Property Value
375.8 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
5
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Rotatable Bond Count
Property Value
6
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Exact Mass
Property Value
375.1237359 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Monoisotopic Mass
Property Value
375.1237359 Da
Reference
Computed by PubChem 2.2 (PubChem release 2021.10.14)
Property Name
Topological Polar Surface Area
Property Value
49.8 Ų
Reference
Computed by Cactvs 3.4.8.18 (PubChem release 2021.10.14)
Property Name
Heavy Atom Count
Property Value
26
Reference
Computed by PubChem
Property Name
Formal Charge
Property Value
0
Reference
Computed by PubChem
Property Name
Complexity
Property Value
407
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

Papaverine hydrochloride is a white powder. pH (0.05 molar solution) 3.9. pH (2% aqueous solution) 3.3. (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.

3.2.2 Melting Point

435 to 437 °F (decomposes) (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.

3.2.3 Solubility

Soluble (>=10 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.

3.2.4 Collision Cross Section

185.8 Ų [M+H]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]

4 Spectral Information

4.1 Mass Spectrometry

4.1.1 GC-MS

Source of Spectrum
Chemical Concepts, A Wiley Division, Weinheim, Germany
Copyright
Copyright © 2002-2024 Wiley-VCH Verlag GmbH & Co. KGaA. All Rights Reserved.
Thumbnail
Thumbnail

4.2 IR Spectra

4.2.1 FTIR Spectra

Technique
KBr WAFER
Source of Sample
E. MERCK AG, DARMSTADT, GERMANY
Copyright
Copyright © 1980, 1981-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail

4.2.2 ATR-IR Spectra

Instrument Name
Bio-Rad FTS
Technique
ATR-Neat (DuraSamplIR II)
Source of Spectrum
Forensic Spectral Research
Source of Sample
Alltech Associates, Inc., Grace Davison Discovery Sciences
Catalog Number
01778
Lot Number
443
Copyright
Copyright © 2009-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail

4.3 Raman Spectra

Technique
FT-Raman
Source of Spectrum
Forensic Spectral Research
Source of Sample
Alltech Associates, Inc., Grace Davison Discovery Sciences
Catalog Number
01778
Lot Number
443
Copyright
Copyright © 2012-2024 John Wiley & Sons, Inc. All Rights Reserved.
Thumbnail
Thumbnail

6 Chemical Vendors

7 Drug and Medication Information

7.1 Drug Indication

7.2 FDA National Drug Code Directory

7.3 Drug Labels

Drug and label
Active ingredient and drug

7.4 Clinical Trials

7.4.1 ClinicalTrials.gov

8 Pharmacology and Biochemistry

8.1 MeSH Pharmacological Classification

Urological Agents
Drugs used in the treatment of urological conditions and diseases such as URINARY INCONTINENCE and URINARY TRACT INFECTIONS. (See all compounds classified as Urological Agents.)
Phosphodiesterase Inhibitors
Compounds which inhibit or antagonize the biosynthesis or actions of phosphodiesterases. (See all compounds classified as Phosphodiesterase Inhibitors.)
Vasodilator Agents
Drugs used to cause dilation of the blood vessels. (See all compounds classified as Vasodilator Agents.)

9 Use and Manufacturing

9.1 General Manufacturing Information

EPA TSCA Commercial Activity Status
Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-, hydrochloride (1:1): ACTIVE

10 Safety and Hazards

10.1 Hazards Identification

10.1.1 GHS Classification

Pictogram(s)
Acute Toxic
Irritant
Signal
Danger
GHS Hazard Statements

H301 (47%): Toxic if swallowed [Danger Acute toxicity, oral]

H302 (53%): Harmful if swallowed [Warning Acute toxicity, oral]

Precautionary Statement Codes

P264, P270, P301+P316, P301+P317, P321, P330, 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 132 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.

10.1.2 Hazard Classes and Categories

Acute Tox. 3 (47%)

Acute Tox. 4 (53%)

10.1.3 Health Hazards

SYMPTOMS: Symptoms of exposure to this compound may include sleepiness, slowed respiration and slowed heart beat. (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.

10.1.4 Fire Hazards

Flash point data for this compound are not available, but 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.

10.2 First Aid Measures

10.2.1 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.

10.3 Fire Fighting

Fires involving this compound should 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.

10.4 Accidental Release Measures

10.4.1 Isolation and Evacuation

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

10.5 Handling and Storage

10.5.1 Nonfire Spill Response

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a strong 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. Protect from light. (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.

10.6 Exposure Control and Personal Protection

10.6.1 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.

10.7 Stability and Reactivity

10.7.1 Air and Water Reactions

Water soluble.

10.7.2 Reactive Group

Ethers

Hydrocarbons, Aromatic

Salts, Acidic

10.7.3 Reactivity Profile

This material is sensitive to light. (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.

10.8 Transport Information

10.8.1 DOT Label

Poison

10.9 Other Safety Information

Chemical Assessment

IMAP assessments - Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-, hydrochloride: Environment tier I assessment

IMAP assessments - Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-, hydrochloride: Human health tier I assessment

11 Toxicity

11.1 Toxicological Information

11.1.1 Acute Effects

12 Associated Disorders and Diseases

13 Literature

13.1 Consolidated References

13.2 NLM Curated PubMed Citations

13.3 Springer Nature References

13.4 Chemical Co-Occurrences in Literature

13.5 Chemical-Gene Co-Occurrences in Literature

13.6 Chemical-Disease Co-Occurrences in Literature

14 Patents

14.1 Depositor-Supplied Patent Identifiers

14.2 WIPO PATENTSCOPE

14.3 Chemical Co-Occurrences in Patents

14.4 Chemical-Disease Co-Occurrences in Patents

14.5 Chemical-Gene Co-Occurrences in Patents

15 Interactions and Pathways

15.1 Chemical-Target Interactions

16 Biological Test Results

16.1 BioAssay Results

17 Taxonomy

18 Classification

18.1 MeSH Tree

18.2 NCI Thesaurus Tree

18.3 KEGG: Drug

18.4 KEGG: ATC

18.5 KEGG: Target-based Classification of Drugs

18.6 KEGG: JP15

18.7 KEGG: Risk Category of Japanese OTC Drugs

18.8 KEGG: OTC drugs

18.9 ChemIDplus

18.10 CAMEO Chemicals

18.11 ChEMBL Target Tree

18.12 UN GHS Classification

18.13 NORMAN Suspect List Exchange Classification

18.14 CCSBase Classification

18.15 EPA DSSTox Classification

18.16 EPA TSCA and CDR Classification

18.17 EPA Substance Registry Services Tree

18.18 MolGenie Organic Chemistry Ontology

19 Information Sources

  1. Australian Industrial Chemicals Introduction Scheme (AICIS)
    Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-, hydrochloride
    https://services.industrialchemicals.gov.au/search-assessments/
  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
    CAMEO Chemical Reactivity Classification
    https://cameochemicals.noaa.gov/browse/react
  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/
  4. ChemIDplus
    ChemIDplus Chemical Information Classification
    https://pubchem.ncbi.nlm.nih.gov/source/ChemIDplus
  5. 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
  6. EPA Chemicals under the TSCA
    Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-, hydrochloride (1:1)
    https://www.epa.gov/chemicals-under-tsca
    EPA TSCA Classification
    https://www.epa.gov/tsca-inventory
  7. EPA DSSTox
    CompTox Chemicals Dashboard Chemical Lists
    https://comptox.epa.gov/dashboard/chemical-lists/
  8. 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
  9. 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
  10. Open Targets
    LICENSE
    Datasets generated by the Open Targets Platform are freely available for download.
    https://platform-docs.opentargets.org/licence
  11. CCSbase
    CCSbase Classification
    https://ccsbase.net/
  12. 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
  13. ClinicalTrials.gov
    LICENSE
    The ClinicalTrials.gov data carry an international copyright outside the United States and its Territories or Possessions. Some ClinicalTrials.gov data may be subject to the copyright of third parties; you should consult these entities for any additional terms of use.
    https://clinicaltrials.gov/ct2/about-site/terms-conditions#Use
  14. DailyMed
  15. Drug Gene Interaction database (DGIdb)
    LICENSE
    The data used in DGIdb is all open access and where possible made available as raw data dumps in the downloads section.
    http://www.dgidb.org/downloads
  16. KEGG
    LICENSE
    Academic users may freely use the KEGG website. Non-academic use of KEGG generally requires a commercial license
    https://www.kegg.jp/kegg/legal.html
    Therapeutic category of drugs in Japan
    http://www.genome.jp/kegg-bin/get_htext?br08301.keg
    Anatomical Therapeutic Chemical (ATC) classification
    http://www.genome.jp/kegg-bin/get_htext?br08303.keg
    Target-based classification of drugs
    http://www.genome.jp/kegg-bin/get_htext?br08310.keg
    Drugs listed in the Japanese Pharmacopoeia
    http://www.genome.jp/kegg-bin/get_htext?br08311.keg
    Risk category of Japanese OTC drugs
    http://www.genome.jp/kegg-bin/get_htext?br08312.keg
    Classification of Japanese OTC drugs
    http://www.genome.jp/kegg-bin/get_htext?br08313.keg
  17. Metabolomics Workbench
  18. National Drug Code (NDC) Directory
    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
  19. Natural Product Activity and Species Source (NPASS)
  20. NCI Thesaurus (NCIt)
    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
  21. 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
  22. SpectraBase
    6,7-DIMETHOXY-1-VERATRYLISOQUINOLINE, HYDROCHLORIDE
    https://spectrabase.com/spectrum/5CfUjbVAkmT
  23. Springer Nature
  24. Wikidata
  25. 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
    Phosphodiesterase Inhibitors
    https://www.ncbi.nlm.nih.gov/mesh/68010726
  26. PubChem
  27. GHS Classification (UNECE)
  28. 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/
  29. EPA Substance Registry Services
  30. MolGenie
    MolGenie Organic Chemistry Ontology
    https://github.com/MolGenie/ontology/
  31. PATENTSCOPE (WIPO)
CONTENTS