The structural diagrams were drawn using ACD/ChemSketch, free software from Toronto based ACD/Labs. Their ancillary software, ChemBasic (also free) was used to check names and structures against external references, and to export individual .gif and .mol files.

Earlier versions of this site used .gif images of the structures, produced directly from ACD/ChemSketch. The current version follows a more circuitous path that yields .png images with better resolution and multi-coloured atoms.

The .mol files produced by ACD/ChemSketch were converted to PostScript files using mol2ps, free software written by Dr. Norbert Haider. The current release of mol2ps provides the ability to assign colours to individual elements. By the way, if you know of any convention for colouring atoms in structural diagrams, official or de facto, please illuminate me.

The .ps files produced by mol2ps were converted to .png files using GPL Ghostscript, which can produce both colour and black-and-white .png images from PostScript source files.

This version of the website uses “nailed-in-place” navigation implemented with commercial software from Ultimate Drop Down Menu. Highly recommended.

As anyone who has tried to proofread their own stuff knows, it’s almost impossible. I am indebted to Linda Jenkins of Red Pen Services who meticulously proofread the CDSA schedules.

Thanks also to Jan from Palo Alto for reporting errors with some structural diagrams in the CSA schedules, and to Zuo Ning from China for pointing out a couple of minor messes I made in the CDSA and the UN schedules. Many, many thanks to Noel at NIH/NCGC for uncovering several botched entries, and for vetting the PubChem links.

How about you, gentle reader? Found a mistake? Let me know. I'll get it fixed and give you the credit (discreetly).