Accessibility
We want everyone to be able to use this site, including people who use screen readers, keyboards or magnification.
Last updated October 22, 2026
Our goal
We aim to meet the Web Content Accessibility Guidelines (WCAG) 2.1 at level AA. Pages use real buttons and links, labeled form fields, sufficient color contrast in both light and dark themes, keyboard navigation with visible focus, and reduced motion when your device asks for it. We test pages with automated accessibility checks and fix issues we find.
Known limitations
Molecule drawings are visual. Each one has a text label, and every fact it shows (name, formula, molecular weight) is also written out as text on the page.
Feedback
If something on the site is hard to use, tell us through the Contact page. Please include the page and what went wrong, and we will work to fix it and get you the information in another way in the meantime.