The 5.5 version of instantjchem for Mac was available as a free download on our website. This Mac app was originally produced by ChemAxon Ltd. The application's installer is commonly called instantjchem-5_5_1-macos_a.zip. The most popular version of the tool is 5.5. The application lies within Developer Tools, more precisely DB Tools.
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 fontmatrix or TOra, which might be related to instantjchem.