Instant JChem – Download


Version 5.9.4

Contents of this package:[may require additional licenses]
  • Instant JChem
  • Name to Structure
  • JChem Base
  • Markush Search
  • Standardizer
  • Calculator Plugins
  • Reactor

You can find more details about the release in the following document: Instant JChem Release Information

Important: Since IJC 5.4 a license is needed to use the full functionality of IJC. Without a license functionality is restricted. Do not upgrade unless you have a license.

Traditional Installer


Windows Platform
Windows Installer (32 bit) with Java
Windows Installer (64 bit) with Java
Includes Instant JChem desktop application and bundled JRE (1.6.0_26). (Install Guide)
Mac OS X Platform
Wrapped application Includes Instant JChem desktop application. Just extract the zip file and launch the application.
Linux Platform
Linux Installer (32 bit) with Java
Linux Installer (64 bit) with Java
Includes Instant JChem desktop application and bundled JRE (1.6.0_26). (Install Guide)
Platform Independent
.zip archive All resources for running Instant JChem. (Requires Oracle’s Java 1.6 or later.) (Install Guide)

Java Web Start


Platform Independent Java Web Start launcher
Launch Instant JChem
Platform Independent Java Web Start demos
URL Demo Page You can launch Instant JChem using Java Web Start including some demo data and see the URL feature in action.
Java Web Start installer kits
ijcinst-jws.zip archive zip archive of Java Web Start version for running on your own server.
jws-url.zip archive JWS installer with shared project and IJC URL support.

Development Version


Warning: this version of Instant JChem is for testing purposes only. It uses a DEVELOPMENT VERSION of Instant JChem and is not thoroughly tested. Do not use this version for real work and keep all data separate from other versions of Instant JChem.

Windows and Linux
.zip archive zip archive for Windows and Linux DEV version. Unzip and run appropriate binary in bin directory
Mac OS X Platform
.zip archive zip archive of wrapped Mac OSX DEV app. Unzip and run.
Java Web Start installer kits
ijcinst-jws.zip archive zip archive of Java Web Start DEV version for running on your own server.
jws-url.zip archive JWS installer with shared project and IJC URL support.
Java Web Start
Launch Instant JChem DEV Java Web Start
Note: first time you start Instant JChem will be downloaded and this will take some time depending on the speed of your network connection.

Old versions


Old versions of Instant JChem can be found in the archives.