Chemistry

This full-featured Web structure sketcher does not rely on Java, Plug-Ins or any other browser- or platform-dependent components - program intelligence is concentrated on the server and conveniently maintained there (from the publisher's website).

Chemistry drawing software for the accurate representation, registration and searching of structures, reactions and biological sequences, and the production of publication-quality graphics (from the publisher's website).

Cn3D ("see in 3D") is a helper application for your web browser that allows you to view 3-dimensional structures from NCBI's Entrez Structure database (from the publisher's website).

An open-source Java viewer for chemical structures in 3D Jmol icon with features for chemicals, crystals, materials and biomolecules (from the publisher's website).

The Royal Society of Chemistry's interactive periodic table features history, alchemy, podcasts, videos, and data trends across the periodic table (from the publisher's website).

MarvinSketch allows users to quickly draw molecules through basic functions on the GUI and advanced functionalities such as sprout drawing, customizable shortcuts, abbreviated groups, default and user-defined templates and context-sensitive popup menus (from the publisher's website).

Wolfram|Alpha introduces a fundamentally new way to get knowledge and answers— not by searching the web, but by doing dynamic computations based on a vast collection of built-in data, algorithms, and methods (from the publisher's website).