imbrexA roof tile common in Ancient Greek and Roman architecture, used in an overlapping formation with the tegula.
ImbrianA lunar geologic period divided into two epochs: the Early Imbrian (3,850 million to about 3,800 million years ago) and Late Imbrian (3,800 million to about 3,200 million years ago).
ImerkheviA subregion of Shavsheti in the northeast Turkey, close to the Georgian border, more precisely defined a valley in the north of the Şavşat district.
imesatinA dark yellow crystalline substance obtained by the action of ammonia on isatin.
iMessageA message sent via the instant messaging service iMessage.
imetelstatA drug used to treat myelodysplastic syndromes with transfusion-dependent anemia.
imexon4-imino-1,3-diazabicyclo[3.1.0]hexan-2-one, a cyanoaziridine derivative being studied for the treatment of some types of cancer.
imidaclopridThe very widely used neonicotinoid insecticide 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine, used both in agriculture and domestically (for instance to control fleas in domestic pets).
imidafenacinA urinary antispasmodic of the anticholinergic class.
imidazolateThe anion formed from imidazole by loss of a proton; any salt containing this anion.
imidazoleA heterocyclic organic compound containing two nitrogen atoms separated by a carbon atom in a five-membered ring, called 1,3-diazole in IUPAC nomenclature.
imidazolonepropionaseA hydrolase enzyme that catalyzes the chemical reaction (S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate + H₂O ⇌ N-formimidoyl-L-glutamate + H⁺.
imidazolopiperazineAny imidazole derivative of a piperazine; they are antimalarial compounds
imidazolylThe univalent radical derived from imidazole
imidazolylideneA neutral divalent carbon atom derived from an imidazolium.
imidazopyranAny bicyclic heterocycle formed by the fusion of an imidazole and a pyran
imidazopyrazineA bicyclic heterocycle composed of an imidazole fused to a pyrazine
imidazopyrazinoneA bicyclic heterocycle composed of a fused imidazole and pyrazinone rings
imidazopyridazineA bicyclic heterocycle composed of an imidazole ring fused to one of pyridazine
imidazopyridineAny of a class of sedative drugs whose effects resemble those of the benzodiazepines.
imidazopyrimidineA bicyclic heterocycle composed of an imidazole ring fused to one of a pyrimidine; any derivative of such a compound, many of which have a biochemical function
imidazoquinolineA tricyclic aromatic heterocycle formed by fusion of an imidazole ring with the pyridine ring of quinoline
imidazoquinolinoneAny quinolinone containing an imidazole as a substituent; some are inhibitors of some nuclear enzymes
imidazoquinoxalineAny heterotricyclic compound composed of an imidazole ring fused to a quinoxaline
imidazotetrazineA imidazolyl derivative of tetrazine that is a prodrug of temozolomide
imidazothiadiazoleAny of a class of bicyclic heterocycles consisting of a diazole ring fused to one of thiadiazole
imidazothiazoleA bicyclic heterocycles consisting of an imidazole ring fused to a thiazole ring; any derivative of this compound, especially one that is any of a class of anthelmintics such as butamisole or levamisole
imidea form of amide in which the nitrogen atom is attached to two carbonyl groups - R₁CONHCOR₂
imidicOf or pertaining to imides or to imidic acids
imidineany analogue of a cyclic acid anhydride in which each =O is replaced by =NR and -O- by -NR-