has role has role independent continuant volatile organic compound toluene Toluene TOLUENE KEGG:C01455 phenylmethane Toluen toluene PDBeChem:MBN CHEBI:17578 methylbenzene CHEBI:9624 CHEBI:27022 CHEBI:44023 DrugBank:DB01900 chebi_ontology TOLUENE Toluene Wikipedia:Toluene CHEBI:15248 Toluol The simplest member of the class toluenes consisting of a benzene core which bears a single methyl substituent. toluenes methylbenzene non-polar solvent cholinergic antagonist neurotoxin fuel additive