Instant Cheminformatics Solutions

Chemicalize is a powerful online platform for chemical calculations, search, and text processing.

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Calculation view provides structure-based predictions for any molecule structure. Available calculations include elemental analysis, names and identifiers, pKa, logP/logD, as well as solubility.

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Chemical Search

Search view lets you perform text-based and structure-based searches against the Chemicalize database to find web page sources and associated structures of the results. You can even combine text-based and structural queries to achieve advanced search capabilities.

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Web Page Annotation

Web viewer displays any web page with chemical structures highlighted on it. Recognized formats are IUPAC names, common names, InChI, and SMILES identifiers. A chemical table of contents is organized at the left part of the page with the images of all recognized chemical structures.

Compliance Checker

Compliance view lets you check your compounds with respect to national regulations of several countries on narcotics, psychotropic drugs, explosives, hazardous materials, and toxic agents.

Chemicalize Professional

Would you like to use our solutions within your own website or application? Chemicalize Professional supports these use cases by providing easy-to-use web components and hosted services with simple REST API. Based on the cloud infrastructure of Chemicalize platform, these services provide you convenient, reliable, and effective ways of integrating cheminformatics tools into your site or products.

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What is this credit system? Could you make Chemicalize free?

The credit system doesn't mean you can't use Chemicalize for free. We provide some features free of charge and give free credits monthly for every user. These possibilities should be enough for typical use cases. However, more intensive usage is also possible by paying some reasonable compensation for the extra resources. We believe that all Chemicalize users will benefit from the credit system since we can speed up the development and updates to provide more valuable features and content.

I miss some functions, could you add them?

Please, let us know if you miss something. We are open to extend the current functionality based on user feedback.

How secure is Chemicalize? Who can see my data?

All your activities and data, such as input molecules and search queries, are handled as private information. They are not accessible to any third parties in any way. For more information, see our Privacy Policy and the Terms of Use.

Can I use Chemicalize results in my presentations/articles?

You are free to use any result or image from Chemicalize in your publications or reports, provided that you refer to ChemAxon and

Can I use Chemicalize for commercial purpose?

Yes, you can. There are no restrictions on commercial usage.

How can I give feedback?

Your feedback is greatly appreciated. You can use the built-in feedback box, appearing in the bottom right corner of Chemicalize pages, or you can send an e-mail to