Marvin suite is a chemically intelligent desktop toolkit built to help you draw, edit, publish, render, import and export your chemical structures and as well as allowing you to convert between various chemical and graphical file formats. It is free for individual, academic and non-commercial use.
MarvinSketch - Create and Design
MarvinSketch features an extensive set of functionalities to enable the fast and accurate drawing of chemical compounds, reactions, Markush structures and query molecules. Furthermore, MarvinSketch has built-in structure and valence checkers to provide guidance, and integrated property calculators to pull live results - upon your request. Not only does MarvinSketch translate chemistry into a digital environment, it also supports the widest selection of industrially acknowledged standard chemical file formats. For chemical drawing on the web, please also check our browser component Marvin JS.
MarvinView - View your molecules
MarvinView is an advanced chemical viewer for single and multiple 2D/3D chemical structures, queries, reactions and their associated data. This lightweight renderer can display even thousands of molecules in a matrix or spreadsheet view along with the on-the-fly calculated fields, like molecule name, generated IUPAC name and SMILES strings. It supports all common chemistry file formats as well as some document formats, if you use Document to Structure license. These filetypes include .doc and .pdf, where chemical text names and context are extracted into a MarvinView table.
Comments and Reviews
As far as I can see, it is free to use for personal use only. You can get a free licence which needs updating every two months.
Liked Marvin and installed it a few months ago. However, it´s not longer free as far as I know.