Net4Science is one of the major player of the joint meeting MehChem2019 between two international consortia: Paul Ehrlich Euro-PhD Network and MuTaLig COST Action. The meeting will be hosted in an exclusive location at the Complesso Monumentale San Giovanni in the center of Catanzaro in three days. Twenty countries of the pan-European area (Austria, Belgium, Czech Republic, Estonia, France, Germany, Greece, Ireland, Israel, Italy, Latvia, Malta, Poland, Portugal, Serbia, Slovenia, Spain, Switzerland, Turkey and United Kingdom). The rich scientific program includes the Net4Science poster multimedia session, designed to browse quickly among all 47 accepted contributions also using smartphone or tablets. This modern and technological dissemination tool is an experiment of Net4Science spinoff, that if successful, will be proposed and replicated in other qualified scientific meetings. Deeper information about this initiative can be found at on line at the official meeting web site http://medchem2019.unicz.it where it is possible to download the program, the book of the abstracts and the multimedia poster slides. Finally, during the meeting, two Net4Science spinoff members Donatella Bagetta and Antonio Lupia, will receive the Paul Ehrlich Euro-PhD award in the first day.