--- 
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  description: A database of bioactive drug-like small molecules and bioactivities abstracted from the scientific literature.
  name: chembl
  name_label: ChEMBL
  name_long: ChEMBL
  src_compound_id: 
    - CHEMBL490129
  src_id: 1
  src_url: https://www.ebi.ac.uk/chembl/
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  aux_for_url: 0
  base_id_url: https://www.emolecules.com/cgi-bin/more?vid=
  base_id_url_available: 1
  description: A free chemical structure search engine containing millions of public domain structures. Pricing, availabilities, and vendor information requires an eMolecules Plus subscription.
  name: emolecules
  name_label: eMolecules
  name_long: eMolecules
  src_compound_id: 
    - 531405
  src_id: 10
  src_url: https://www.emolecules.com/
- 
  aux_for_url: 0
  base_id_url: http://fdasis.nlm.nih.gov/srs/ProxyServlet?mergeData=true&objectHandle=DBMaint&APPLICATION_NAME=fdasrs&actionHandle=default&nextPage=jsp/srs/ResultScreen.jsp&TXTSUPERLISTID=
  base_id_url_available: 1
  description: "The primary goal of the FDA/USP Substance Registration System (SRS) is to unambiguously define all substances present in regulated products. Once a substance has been defined, the SRS assigns a strong identifier that is permanently associated with the substance: a UNII (Unique Ingredient Identifier). This is a a non-proprietary, free, unique, unambiguous, nonsemantic, alphanumeric identifier based on a substances molecular structure and/or descriptive information."
  name: fdasrs
  name_label: FDA SRS
  name_long: FDA/USP Substance Registration System (SRS)
  src_compound_id: 
    - B8Z8J4400H
  src_id: 14
  src_url: http://fdasis.nlm.nih.gov/srs/srs.jsp
- 
  aux_for_url: 0
  base_id_url: https://www.surechembl.org/chemical/
  base_id_url_available: 1
  description: SureChEMBL automatically extracts chemistry from the full text of all major patent authorities. Compounds are derived from either chemical names found in text or in chemical depictions. All SureChEMBL compounds are included, except those failing UniChem loading rules.
  name: surechembl
  name_label: SureChEMBL
  name_long: SureChEMBL
  src_compound_id: 
    - SCHEMBL43290
  src_id: 15
  src_url: https://www.surechembl.org/search/
- 
  aux_for_url: 0
  base_id_url: http://pubchem.ncbi.nlm.nih.gov/substance/
  base_id_url_available: 1
  description: "A subset of the PubChem DB: from the original depositor 'Thomson Pharma'."
  name: pubchem_tpharma
  name_label: "PubChem: Thomson Pharma "
  name_long: PubChem ('Thomson Pharma' subset)
  src_compound_id: 
    - 14852883
  src_id: 21
  src_url: http://www.thomson-pharma.com/
- 
  aux_for_url: 0
  base_id_url: http://pubchem.ncbi.nlm.nih.gov/compound/
  base_id_url_available: 1
  description: A database of normalized PubChem compounds (CIDs) from the PubChem Database.
  name: pubchem
  name_label: PubChem
  name_long: PubChem Compounds
  src_compound_id: 
    - 68635
  src_id: 22
  src_url: http://pubchem.ncbi.nlm.nih.gov
- 
  aux_for_url: 0
  base_id_url: http://actor.epa.gov/actor/chemical.xhtml?casrn=
  base_id_url_available: 1
  description: ACToR (Aggregated Computational Toxicology Resource)
  name: actor
  name_label: ACToR
  name_long: ACToR
  src_compound_id: 
    - 5578-73-4
  src_id: 26
  src_url: https://actor.epa.gov
- 
  aux_for_url: 0
  base_id_url: https://www.molport.com/shop/molecule-link/
  base_id_url_available: 1
  description: MolPort. A database designed to assist users find commercial sources of compounds. Access requires (free) registration. Only stock compounds included from Nov 2017.
  name: molport
  name_label: MolPort
  name_long: MolPort
  src_compound_id: 
    - MolPort-003-939-254
  src_id: 28
  src_url: https://www.molport.com/shop/index
- 
  aux_for_url: 0
  base_id_url: https://www.chemicalbook.com/ChemicalProductProperty_EN_
  base_id_url_available: 1
  description: An online knowledge-base of chemicals and a platform of the Chinese domestic vendors in chemical industry
  name: chemicalbook
  name_label: ChemicalBook
  name_long: ChemicalBook
  src_compound_id: 
    - CB4228826
  src_id: 39
  src_url: https://www.chemicalbook.com