Chemical Abstracts Service Chemical Registry System. 11. Substance-related statistics: update and additions
- 1 November 1988
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Chemical Information and Computer Sciences
- Vol. 28 (4) , 180-187
- https://doi.org/10.1021/ci00060a003
Abstract
Statistics are updated for types of substances, ring systems, and elemental composition that have been determined for the Chemical Abstracts Service Registry Structure File at different points in time. This paper reports the updated figures and in addition some new statistics and offers some comparisons to show various shifts in file characteristics.Keywords
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