all items  in current results   Refine your search within these categories: 01. Food Nutrient & Dietary Chemicals 02. Food Pesticide Chemicals with Regulated Residues on Food Commodities 03. Biological Effects of Specific Chemicals: all > pharmacological uses [CHEBI:52210] > neurotransmitter agent [CHEBI:35942] > opioid agent [CHEBI:60598] > mu-opioid agent [CHEBI:60599] > mu-opioid receptor agonist [CHEBI:55322] > fentanyl [CHEBI:119915] 04. Bioactive Capabilities of Specific Chemicals 05. Industrial Uses (group results) pharmaceutical [CHEBI:52217] (1) 06. Name of Biological Source of Chemical 07. Part of Biological Source of Chemical 08. Chemical Category (group results) main group molecular entity [CHEBI:33579] (1) polyatomic entity [CHEBI:36357] (1) 09. Chemical Capabilities Recently Viewed Items Go to Item History   [CHEBI:72634]   impatienol                 [CHEBI:16199]   urea                 [CHEBI:17154]   nicotinamide

These terms define your current search. Click the × to remove a term. 03. Biological Effects of Specific Chemicals: pharmacological uses [CHEBI:52210] > neurotransmitter agent [CHEBI:35942] > opioid agent [CHEBI:60598] > mu-opioid agent [CHEBI:60599] > mu-opioid receptor agonist [CHEBI:55322] > fentanyl [CHEBI:119915] × 1 result (ungrouped)   [CHEBI:119915]   fentanyl