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Find Information

Chemicals Browse relationships among chemicals, and obtain detailed information about them, including structure, toxicology data and associated genes, diseases, pathways, and references.
Chemical Resources Other resources with information about chemicals.
Chemical–Gene Interactions Search for cross-species chemical–gene and protein interactions curated from the published literature. Interactions may be retrieved by chemical, interaction type, gene, organism, or Gene Ontology annotation.
Genes Search for genes from diverse vertebrates and invertebrates by symbol, synonym, accession ID, organism taxon, chemical, chemical–gene interaction type, disease, or Gene Ontology annotation. You may also browse the gene vocabulary.
Gene Resources Other resources with information about genes, proteins, and sequences.
Diseases Obtain detailed information about diseases, including associated genes and chemicals.
Disease Resources Other resources with information about diseases.
References Search for references by gene, organism taxon, chemical, chemical–gene interaction type, disease, citation information, or accession ID.
Reference Resources Other resources with reference information.
Organisms Browse relationships among organism taxa, and access associated genes.
Gene Ontology (GO) Browse relationships among the Gene Ontology terms, and access annotated genes and associated diseases.
Pathways Browse KEGG and REACTOME pathways, and access detailed information, including annotated genes and diseases.
Analysis Tools Alternative ways to access and analyze CTD data.
Batch Query Download customized data sets associated with a list of chemicals, diseases, genes, Gene Ontology terms, or pathways.
MyGeneVenn Compare your gene list to genes associated with up to two chemicals or diseases.
MyVenn View commonalities among your lists of CTD chemicals, diseases, genes, GO terms, pathways, or any other data.
VennViewer Compare associated data sets for up to three chemicals, diseases, or genes.
Set Analyzer Perform analyses such as set-based enrichment for collections of chemicals or genes, and pathway generation for collections of genes.
Downloads Download complete data sets.
Query History View your previous queries.

Top ↑ Get Help

Help Learn how to get the information you need from CTD. Includes instructions for formulating queries, and detailed descriptions of our data.
FAQ Answers to frequently asked questions about CTD.
Tutorials Watch tutorials about using CTD and our data.
Glossary Definitions of abbreviations and terms used in CTD.
Contact Us Send us suggestions, corrections, questions, and curation requests.
Linking to CTD Instructions for linking to CTD. Downloadable CTD logos.
CTD Email List Subscribe to, unsubscribe from, or view the archives of the CTD announcements email list.

Top ↑ About CTD

Home page News updates, recently curated data, and sample questions you can answer using CTD.
About Us An introduction to CTD and our primary data categories.
Publications/Citing/Use Instructions for citing CTD in your publications and presentations. Publications and presentations by our investigators and staff. A list of resources that use CTD data.
Acknowledgments Scientific resources and open-source software projects from which CTD benefits.
Data Status The current status of CTD data.
Data Model Documentation for CTD's data model.
Changes Log of changes to CTD's functionality and data.
Personnel CTD's investigators and staff.
Legal Notices Legal terms and conditions of using CTD.
Privacy Policy The policy under which CTD collects and handles information from our site visitors.