The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
An inorganic heterocyclic compound with formula N2S2 and consisting of alternating sulfur and nitrogen atoms making up a 4-membered ring structure that is virtually square and planar. It is shock-sensitive and decomposes explosively above 30degreeC.