The Chemistry Development Kit has a rich set of data classes, each of which is defined by an interface. While the classes for atoms, bonds and a connectivity table are fairly straightforward, but beyond that it is sometimes not entirely clear. I will now discuss all interfaces in a series of blog items. I’ll start with the IChemFile. Christoph, please correct me if I move to far away from our Notre Dame board sketch.

So, with all these people blogging about the Open Science Notebook (yes, each word is one distinct blog) it is worth looking back in time. To make clear what I put under the OSN: a notebook in which experimental details and outcome are written down. So, what did the OSN look like almost ten years ago?

Second in a series of articles summarizing articles that cite one of the main CDK articles for CDK News. The first CDK Literature was already half a year ago, so it was about time.

Chemical blogspace has seen a lengthy discussion on the quality of a few NMR shift prediction programs , and Ryan wanted to make a final statement.

Everyone of use knows that big pile of paper on your desk that contains the things we want to read, scan or just browse. I even have an electronic equivalent. Another pile contains leaflets and glossy folders from conferences, like the ACS meeting in Chicago. OK, going to get rid of those last ones, and will shortly put the links here.

The Seven stones wondered what to do with a petaflop in science, in response to Declan’s The petaflop challenge in Nature.

Atom typing is one of principal activities in chemoinformatics. Atom types provide additional information that cannot be derived from the connection table that is being used, or may define what force fields terms should be used. This makes perception of atom types very important.

December last year I proposed the use of microformats and RDFa for simple semantic markup of molecular information.

Over the last few weeks I continued the work on getting (descriptor-based) QSAR/QSPR implemented in Bioclipse. JOELib (GPL) and the CDK (LGPL) being two prominent opensource engines that can calculate molecular descriptors, and AMBIT a front-end.

Pedro suggested in Nature Networks What’s Next forum that Nature should add a new service for scientists: hosting electronic lab notebooks. And I think this will be a killer application. I am rather excited about the idea, and feel ashamed not putting one-and-one together myself. We have our chemoinformatics tools and RDF is just around the corner, that combined with semantic wikis, and we have science of the 21st century.

Last week I started the Blue Obelisk Chemical Test File Repository, a repository of OSI-approved-licenced test files (from various sources) to improve interoperability between chemoinformatics software.