Download of instantjchem 5.5 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular version among instantjchem for Mac users is 5.5. Instantjchem for Mac is included in Developer Tools. This software for Mac OS X was originally produced by ChemAxon Ltd. The common filename for the application's installer is instantjchem-5_5_1-macos_a.zip.
From the developer:
Instant JChem is a desktop application for end user scientists.
With Instant JChem you can create, explore and share chemical and non chemical data in local and remote databases without additional administration.
You may want to check out more Mac applications, such as TOra, which might be related to instantjchem.