title: The value of the Duquénois test for cannabis--a survey.
abstract: The Duquénois test is employed throughout the world as part of the identification procedure for cannabis. A survey of results published for more than 400 herbally derived and botanical materials originating from some 270 different plant species is presented. A survey of results from some 200 organic compounds is also presented. The data show that the D-L modification is the most specific. There is no published report of an obviously botanical material, apart from cannabis, that gives a positive D-L test. Apart from cannabinoids, some resorcinol derivatives give a positive test. All of the materials are easily distinguished from cannabis by TLC.
mesh_terms: D001578:Benzopyrans / Q000032:analysis; D002185:Cannabidiol; D002186:Cannabinoids / Q000378:metabolism; D002188:Cannabis / Q000032:analysis*; D002396:Catechols / Q000032:analysis; D055598:Chemical Phenomena; D002621:Chemistry; D003116:Color; D013759:Dronabinol; D007202:Indicators and Reagents / Q000494:pharmacology; D019684:Magnoliopsida / Q000187:drug effects; D010636:Phenols / Q000494:pharmacology; D010936:Plant Extracts / Q000378:metabolism; D012118:Resorcinols / Q000032:analysis; D013729:Terpenes / Q000494:pharmacology
chemical_list: D001578:Benzopyrans; D002186:Cannabinoids; D002396:Catechols; D007202:Indicators and Reagents; D010636:Phenols; D010936:Plant Extracts; D012118:Resorcinols; D013729:Terpenes; D002185:Cannabidiol; C005747:synhexyl; D013759:Dronabinol