Links Societies Royal Society of Chemistry Heterocyclic Group American Chemical Society Organic Division Canadian Society for Chemistry Organic Division Brazilian Association of Pharmaceutical Sciences (ABCF) Journals and Monographs The Journal of Heterocyclic Chemistry Heterocycles Heterocyclic Communications Progress in Heterocyclic Chemistry Comprehensive Heterocyclic Chemistry Chemistry of Heterocyclic Compounds ARKIVOC SYNLETT SYNTHESIS SYNFACTS Online communities Linked-In ISHC-group Linked-In ACS-Organic Division Group