Is PubChem a reputable source?
Matthew Wilson
Updated on February 28, 2026
PubChem (Kim, 2016; Kim et al., 2016a; Wang et al., 2017) is a public chemical information resource, developed and maintained by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM), an institute within the U.S. National institutes of Health (NIH).
What type of source is PubChem?
PubChem is an open chemistry database at the National Institutes of Health (NIH).
How do you source PubChem?
To cite an original source of PubChem data use one of the following:
- Refer to attribution on the PubChem record.
- Cite publication linked to record, if present.
- Navigate to the source using our PubChem Data Sources page.
Is PubChem free?
What is PubChem? PubChem is the world’s largest collection of freely accessible chemical information.
Who is the owner of PubChem?
The system is maintained by the National Center for Biotechnology Information (NCBI), a component of the National Library of Medicine, which is part of the United States National Institutes of Health (NIH). PubChem can be accessed for free through a web user interface.
What is CID in PubChem?
identifier from database of chemical molecules and their activities in biological assays (Compound ID number) PubChem ID. PubChem Compound ID (CID)
Is PubChem an encyclopedia?
The system is maintained by the National Center for Biotechnology Information (NCBI), a component of the National Library of Medicine, which is part of the United States National Institutes of Health (NIH)….PubChem.
| Content | |
|---|---|
| Primary citation | PMID 15879180 |
| Access | |
| Website | |
| Download URL | FTP |
What is PubChem compound?
PubChem Compounds PubChem Compound records are derived summaries that give users access to a rich set of related content. Compound records contain unique chemical structures extracted from contributed Substance records through a process called ‘standardization’.
What is Sid and CID?
SID, CID and AID are the identifiers for the Substance, Compound and BioAssay databases, respectively. Source publication. PubChem Substance and Compound databases. Article.
Is PubChem CID ionic or covalent?
Sodium iodide is a metal iodide salt with a Na(+) counterion. It is an inorganic sodium salt and an iodide salt. Sodium iodide is a water-soluble ionic compound with a crystal lattice….3.1Computed Properties.
| Property Name | Property Value | Reference |
|---|---|---|
| Covalently-Bonded Unit Count | 2 | Computed by PubChem |
What is chemidplus used for?
ChemIDplus. ChemIDplus is a free, web search system that provides access to the structure and nomenclature authority files used for the identification of chemical substances cited in National Library of Medicine (NLM) databases, including the TOXNET® system.
What is PubChem Bioassay?
PubChem BioAssay Consists of deposited bioactivity data and descriptions of bioactivity assays used to screen the chemical substances contained in the PubChem Substance database, including descriptions of the conditions and the readouts (bioactivity levels) specific to the screening procedure.
What is an PubChem substance record?
PubChem Substance records contain substance information electronically submitted to PubChem by depositors. This includes any chemical structure information submitted, as well as chemical names, comments, and links to the depositor’s web site.
What is a pubpubchem compound?
PubChem Compound Contains unique, validated chemical structures (small molecules) that can be searched using names, synonyms or keywords. The compound records may link to more than one PubChem Substance record if different depositors supplied the same structure.
