FIELD: chemistry. SUBSTANCE: invention relates to the field of luminescent compounds with poly(hetero)aromatic core, namely to 6-methoxybenzo[de]naphtho[1,8-gh]quinoline. EFFECT: this compound manifests itself as an optical sensor for detecting nitro-explosive substances and can be used in security systems in addition to service dogs to prevent terrorist acts as a means of detecting explosives as part of the sensor material of fluorescent explosives detectors, as well as in the army and navy. 1 cl, 4 dwg, 2 tbl.