ACS Website Citation Generator
Generate accurate citations for online chemistry resources, chemical databases, and scientific websites. Follows ACS Style Guide for web-based references.
Identify Author
List the author or organization. If no specific author, begin with the title of the page. For databases, include the database name.
Page Title
The page or article title uses sentence case. The website or database name is italicized if distinct from the page title.
Three Systems
ACS offers superscript, italic numbers, or author-date. For websites, the author-date system often provides the clearest reference.
URL + Date
Include the full URL and the date you accessed the page. For databases, include the accession number or CAS Registry Number.
Common Formatting Pitfalls
National Institute of Standards and Technology. NIST Chemistry WebBook. https://webbook.nist.gov/ (accessed Mar 15, 2026).
National Institute of Standards and Technology. (2026). NIST Chemistry WebBook. Retrieved from https://webbook.nist.gov/
Other ACS Source Types
Cross-Style Website Formats
Complete ACS citation rules, formatting examples, and common mistakes.