Terms of use
These terms cover use of this website. By reading the notebook you accept them. They are deliberately short, because the site does very little: it publishes text and one arithmetic tool.
Permitted use
You may read, quote and link to the material for personal, academic or journalistic purposes, provided the source is attributed and the context is preserved. You may not republish whole pages, resell the content, or present it as your own documentation work.
Automated scraping that places load on the server is not permitted. Reasonable indexing by search engines is welcome, which is why a sitemap and a permissive robots file are published.
- Quote with attribution and context.
- No wholesale republication or resale.
- Search indexing is welcome; heavy scraping is not.
Intellectual property
The text, layout and tool code are the author's work. Supplier names and molecule names are used descriptively and remain the property of their respective holders. Nothing on the site grants a licence to any third-party trademark.
The vendor archive reproduces listing data for comparison purposes with its source noted. That data belongs to the suppliers who published it, and its presence here is not a claim of ownership.
- Site text and code belong to the author.
- Names remain with their holders.
- Archive data is reproduced for comparison.
Links, liability and changes
Outbound links are provided for reference. The site does not control destination content and is not responsible for it. Advertising links are marked as advertising and are not editorial endorsements.
The material is provided as is, without warranty of accuracy or fitness for a particular purpose. To the extent permitted by law, the author is not liable for loss arising from use of the site. Terms may change; the current version is always this page.
- Outbound links are not endorsements.
- No warranty of accuracy or fitness.
- The current terms are always on this page.