Skip to main content

Searching Chemical Availability (ChASe)

You can use the Find Chemical Product Availability search to source and compare commercially available chemicals using the Chemical Availability Search (ChASe) database. Pricing and supplier information is provided for over 250,000 unique chemicals from many UK suppliers. You can click Find Chemical Product Availability, to open the Find Chemical Product Availability search in the PSDI Cross Data Search Service in a new tab.

To perform a search of the ChASe database:

  1. Select the Find Chemical Product Availability tab in the PSDI Cross Data Search service.
  2. Enter a substance name, CAS number or other identifier, for example, InChI string, InChI key, SMILES and synonyms.
  3. Optional: To search only for substances in stock, click the Only in stock toggle to set this property. Click the Only in stock toggle again to turn this option off.
  4. Once you have entered your search query, you can click the Search button. The ChASe database is the only data source that can be searched in the Find Chemical Product Availability search.

Search and Search Results​

When you click on the Search button to perform your search, the list of data sources you selected to search is displayed with the progress in retrieving the results for each one. A tick symbol next to the data source name indicates results were retrieved successfully. You can cancel the search if you want to stop and view the retrieved results by clicking the Cancel button. If all the data sources returned results successfully, the list of data sources is replaced by the list of results.

If a cross appears next to a data source, this indicates an error was returned from that data source. The list of data sources will remain on screen so that you can see which data sources returned an error. To view more details about the cause of the errors and to view successful results, click the Results button.

For each result returned by the search query, a 'result card' is displayed. The content of the result cards is determined by the fields that are returned by each data source, so not all information is available for every record. At the top right of each result card you can see from which data source the result originates.

You can configure the number of results that are displayed per page using the per page dropdown at the top left of the page. You can also configure how many results for each database are displayed using the per database dropdown at the top left of the page.

Some data sources enable you to view more information about the data or to download the data. For example, the Crystallographic Open Database (COD) allows you to view a visualisation of the molecule and to download the data associated with the publication reference information. The controls for these additional functions can be found at the top right of the result card.

The Source tab in the result card provides the contents of the result record in JSON format.

What to do next​

There are multiple ways to search the data sources accessible through PSDI, find out how to use our other search methods:

Related links:

PSDI offers other ways to search for data that are not included in our Cross Data Search service. Explore these links to access additional data sources offered by PSDI:

About this page

If you would like to contribute content to the PSDI Knowledge Base or have feedback you would like to give on this guidance, please contact us.