| orcinol | 3,5-dihydroxytoluene;the parent substance of the natural dye orcein, obtained from certain colourless lichens (Lecanora tinctoria, Rocella tinctoria) by treatment with boiling water; used as an external antiseptic in various skin diseases and in chemistry as a reagent for pentoses. Synonym: 5-methylresorcinol, orcin. (05 Mar 2000) |
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| orcinol test | A test for pentoses with orcinol. Synonym: orcinol test. (05 Mar 2000) |