All about RXN Files

The RXN file type is primarily associated with ChemDraw.

RXN	File extension: RXN
	File type:	chemical reaction file

What is an RXN file?

RXN files mostly belong to ChemDraw. An RXN file is a chemical reaction file that stores structured data about reaction mechanisms. It is created by chemical drawing programs such as ChemDraw and can be used by MarvinSketch as well.
These files capture key reaction details including reactants, products, and bond information.
Key details as outlined by FilExt.com include:

Detailed molecular structure and bond data.

Representation of reaction pathways and mechanisms.

Exchangeable format for use in various chemistry software.

FilExt.com note: They are designed for users who work with chemical reaction models and need to preserve the structure of complex reactions.

How to open an RXN file

You need a suitable software like ChemDraw to open an RXN file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your RXN file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a RXN file directly in the browser:. Just drag the file onto this browser window and drop it.

Online RXN Text Viewer

Choose your .rxn file to view

or drag and drop it here

Online File Viewer

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How to extract texts from RXN files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from RXN file or capture a screenshot, you can use our free Online RXN File Viewer:

Just click the "Choose your .rxn file to view" button on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert RXN files:

ChemDraw
See the previous paragraphs to learn more about the main application. RXN files are often referred to as ChemDraw data files because this type of file is primarily created or used by this software.
MDL Molfile (Reaction Format) by MDL Information Systems, Inc.
The Mime types used with this association are: chemical/x-mdl-rxnfile. The identifying characters used for this association are - Hex: 24 52 58 4E, ASCII: $RXN.

Technical Data for RXN File Extension

File classification:

Data

Identifier:

Hex: 24 52 58 4E, ASCII: $RXN (provided by TrID database)

Related files:

mol, sdf, cdx, cdxml, cml, txt, zip, tgf, jdx, skc

Mime type:

chemical/x-mdl-rxnfile

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: rxnFile
EXEFile: %ProgramFiles%\Internet Explorer\Iexplore.exe %1

an rxn chemical reaction file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with RXN files

Associate the RXN file extension with the correct application.
Update your software that should actually open chemical reaction files. Because only the current version supports the latest RXN file format. Search, therefore, e.g. on the manufacturer website after an available ChemDraw update.
To make sure that your RXN file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .RXN file online - secure, fast, and no downloads needed.