Skip To Content

ACD/Labs Blog

Joel Michalski
InChIKey is a 27-character compacted (hashed) version of InChI which is intended for Internet and database searching/indexing and is based on an SHA-256 hash of the InChI character string. The first block of InChIKey encodes molecular skeleton while the second block represents various kinds of isomerism (stereo, tautomeric, etc.). InChIKey is designed to be a...

Arvin Moser
The nomenclature rules for organic compounds set by the International Union of Pure and Applied Chemistry (IUPAC) committee (http://www.iupac.org/) do offer flexibility in some areas especially in cases where old publications have old terms. Below are some examples. The answers for the structures, as based on the IUPAC nomenclature rules, are listed below. Some links...

Arvin Moser
Following a successful attempt at solving an unknown, the next step may be to determine a name for the novel compound. The nomenclature rules for organic compounds are set in place by the International Union of Pure and Applied Chemistry (IUPAC) committee (http://www.iupac.org/). For the following compounds, which names adhere to the IUPAC nomenclature rules?

Sherry Myles
Toronto, CA (November 25, 2008)—Sanofi-Aventis, one of the world’s leading pharmaceutical companies, recently agreed to a three-year contract to extend the use of Advanced Chemistry Development, Inc., (ACD/Labs) software throughout its R&D sites worldwide. The agreement includes provisions for continuing support, and a special pricing structure beneficial to both companies. Sanofi-Aventis uses a range of...