Output format includes: name [Name ] mol_weight [Molecular Weight ] num_rings [Number of Rings (by SSSR) ] $$$
The "$$$" is the separator between multiple molecular entries in a file
"obprop pyridines.sdf"
The web pages for Open Babel can be found at: <>
An -nosplit Open Babel is developed by a cast of many, including currrent maintainers An Geoff Hutchison , An Chris Morley , An Michael Banck , and innumerable others who have contributed fixes and additions. For more contributors to Open Babel, see <>
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.