NCATSFind: Resolving Chemical Content in Browser

Resolve We have recently developed NCATSFind: a Firefox add-on to help users resolve web content to real chemical structures. The goal is to make discovering, displaying and downloading chemical structures as simple as possible:
  1. Select some content from a page:
    • name
    • code
    • image
  2. Resolve it to a structure.
  3. Display structure and origin
  4. Allow export
This is accomplished in NCATSFind by using some simple client-side JavaScript to embed some UI elements, along with functions to AJAX our resolving web services. A few format-sniffing functions automatically highlight certain predictable systematic codes (UNII, CAS Number, InChI). Names and codes are resolved using our resolver web service. This service uses dictionaries from several public sources (PubChem, FDA-SRS, NCI, etc ...), as well as OPSIN for systematic name parsing. Images are resolved using our image resolver web service, which uses OSRA to convert an image to a chemical format. For a simple demo, check out the video:  
To install the add-on into your Firefox browser, simply click on the following link:

Logging Note:

While our web services don't keep systematic logs of searches, any use of the resolver will transmit data to and from our web servers. For that reason, we recommend against attempting to resolve any sensitive data.

7 thoughts on “NCATSFind: Resolving Chemical Content in Browser

  1. This plugin alter a jqueryui slider styled with a linear-gradient css, making it totally blue.

  2. That’s really fantastic – will you be planning to port the add-on for chrome users too

  3. An alternative to this tool which works without changing your browser set-up, is reasonably browser-independent, and offers more functionality:
    Go to, and paste either a name or code into the entry field on the upper right, or (on suitable browsers) drag/drop an image or file onto the drawing area. The structure is resolved, and there are lots of options for further direct searching in >50 Internet databases, export in many formats including desktop formats such as CDX, etc.

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