Within the eNanoMapper project in silico toxicology (IST) maintains the Resource Description Framework (RDF) database with nanoparticle ontologies and data. In order to simplify the combined search for data and ontologies in the eNanoMapper RDF backend, we have developed an interface for the visualisation of SPARQL queries. This poster presents the enm-ontoviewer application \cite{gebele_denis_2017_259384} considering two use case scenarios and links to source code and documentation.