Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z thioaldehyde any analogue of an aldehyde, of general formula RC(=S)H, in which the oxygen has been replaced by sulfur thioalkaloid Any alkaloid that has one or more sulfur atom thioalkyl A univalent radical, R-S-, derived from an alkyl thiol thioalkyne An alkyne with is also a thioether. thioamidation reaction with a thioamide thioamide Any chemical compound, analogous to the amides in which the oxygen atom of the carbonyl group is replaced by sulfur; R-CS-NH₂ (and N-derivatives) thioaminal Any aminal that has one or more sulfur atoms thioanhydride any analogue of an acid anhydride, or general formula (RC(=O))₂S, in which one oxygen has been replaced by sulfur thioanion An anion containing a negatively charged sulfur atom. thioanisole The aromatic thioether methyl phenyl sulfide; it is used in organic synthesis; and derivative of this compound thioantimonate The anion of antimony and sulfur, SbS₄⁻ or its salt thioaptamer Any aptamer that has sulfur atoms in its phosphodiester bonds thioarsenite Any ion or derived salt in which one or more oxygen atoms of an arsenite is replaced by one of sulfur thioarsine Any organic compound containing one or more arsenic-sulfur bonds thioaryl A univalent radical R-S- derived from a thioether with R as an aryl group. thioate Any salt or ester of a thioic acid. thioautotroph A chemoautotroph that feeds on sulfides thioautotrophic Describing a chemoautotrophic organism that feeds on sulfides thioazafluoranthene An azafluoranthene in which one or more carbon atoms has been replaced by sulfur thiobacillus Any bacillus that is capable of metabolising sulfur, especially members of the genus Thiobacillus thiobarbital The barbiturate 5,5-diethyl-2-sulfanylidene-1,3-diazinane-4,6-dione thiobarbiturate Any compound obtained from a barbiturate by the formal substitution of an oxygen atom by one of sulfur thiobarbituric Of or pertaining to thiobarbituric acid or its derivatives thiobenzamide The amide of thiobenzoic acid C₆H₅-C=S-NH₂ thiobenzanilide Any thioamide derived from thiobenzoic acid and aniline thiobenzoate Any salt or ester of thiobenzoic acid thiobenzoic Of or pertaining to thiobenzoic acid or its derivatives thiobenzophenone The thioketone analogous to benzophenone thiobinupharidine A particular thioalkaloid found in water lilies of the genus Nuphar. thiobiotic That lives in an environment rich in sulfur thiobispropanoate Any ester or salt of thiobispropionic acid thiobutabarbital A short-acting barbiturate derivative (trademark Inactin) which has sedative, anticonvulsant and hypnotic effects and is used in veterinary medicine for induction in surgical anesthesia. thiocalsin A protease that is activated by calcium after having been reacted with thioredoxin thiocane A saturated eight-membered heterocycle having seven carbon atoms and one sulfur atom thiocarbamate Any compound formally derived from a carbamate by replacing an oxygen atom by one of sulfur thiocarbamide thiourea thiocarbamoyl A radical derived from thiocarbamide thiocarbazide The thiocarbonyl derivative of hydrazine (NH₂-NH)₂CS that is used in the synthesis of herbicides etc. thiocarbazone Any of a class of organic nitrogen compounds derived from the parent compound HN=N-CS-NH-NH₂ thiocarbohydrate Any compound derived from a carbohydrate by replacing one or more oxygen atoms by sulfur thiocarbohydrazide Any N,N'-diamino derivative of thiourea thiocarbon Any chemical compound containing only atoms of carbon and sulfur thiocarbonate Any anion formally derived from a carbonate by replacing one or more oxygen atoms with sulfur; any salt containing such an anion thiocarbonic Describing a carbonic radical in which one or more atoms of oxygen have been replaced by sulfur thiocarbonyl The divalent radical S=C< characteristic of thioketones thiocarboxyl A functional group, derived from a thiocarboxylic acid, in which either or both oxygen atoms of a carboxyl group are replaced by those of sulfur thiocarboxylate Any compound or ion formally derived from a carboxylate by replacing one or both oxygen atoms with those of sulfur. thiocarboxylated Modified by reaction with, or conversion to a thiocarboxylate thiocarboxylation Any reaction that introduces a thiocarboxylate group into a molecule thiocarboxylic Of or pertaining to thiocarboxylic acids or their derivatives thiocarlide A thiourea drug used in the treatment of tuberculosis, inhibiting oleic acid and tuberculostearic acid. thiochlorfenphim A particular fungicide. thiocholine A mercapto quaternary ammonium compound with formula (CH₃)₃N⁺CH₂CH₂SH⁻; it is used as a reagent for the determination of cholinesterases thiocholinergic Produced or activated by thiocholine thiochromane The bicyclic heterocycle formally derived from chromane by replacing the oxygen atom by one of sulfur thiochrome A derivative of thiamine used in the colorimetric analysis of vitamin B1 thiochromene The bicyclic heterocycle formally derived from chromene by replacing the oxygen atom by one of sulfur thiochromone 1,4-benzothiopyrone, a derivative of benzopyran with a substituted keto group on the thiopyran ring. thiocillin A macrocyclic thiazole peptide that has bacteriocidal activity thiocine An unsaturated eight-membered heterocycle having seven carbon atoms, one sulfur atom and three double bonds thiocolchicine Any thio derivative of colchicine, but especially the tubulin synthesis inhibitor 10-thiocolchicine thiocolchicoside A synthetic glycoside, of complex structure, used as an analgesic thiocompound Any organic compound containing sulfur, especially a heterocycle containing a sulfur atom in the ring thiocoraline A microbial depsipeptide, produced by Micromonospora, that has some anticancer activity thiocresol Either of the three isomeric thiophenols derived from toluene equivalent to the cresols thiocyanate any salt or ester of thiocyanic acid; or the -SCN radical or the SCN⁻¹ anion thiocyanation Reaction with, or formation of a thiocyanide thiocyanic sulfocyanic thiocyanide thiocyanate thiocyanogen The pseudohalogen N≡C-S-S-C≡N thiocyanuric Of, related to, or derived from thiocyanuric acid thiocysteine A persulfide of cysteine thiocytosine A derivative of cytosine in which a hydroxyl group has been replaced by a thiol group thiodigalactoside A digalactoside in which the oxygen that links the aglycone to the sugar is replaced by a sulfur thiodiglycol A viscous, clear to pale-yellow liquid used as a solvent, miscible with acetone, alcohols, and chloroform and soluble in benzene, ether, and tetrachloromethane. thiodiphenylamine phenothiazine thiodiphosphate Any derivative of a diphosphate in which one or more oxygen atoms have been replaced by sulfur thiodipropionate Synonym of thiobispropanoate. thioenzyme Any enzyme that acts on a thiol group, typically of an amino acid such as cysteine thioester Any of several classes of organic compound in which one or both oxygen atoms of an ester group are replaced by those of sulfur thioesterase Any of various enzymes of the esterase family that exhibit esterase activity specifically at a thiol group. thioesterification Any reaction that leads to the production of a thioester thioesterify (of an acid) to combine with a thiol or (of an alcohol) to combine with a thioacid, to form a thioester thioethanolamine cysteamine thioether Any analogue of an ether, or general formula RSR', in which the oxygen has been replaced by sulfur; an organic sulfide. thioetherification The formation of a thioether thioethyl A univalent radical, CH₃CH₂-S-, derived from ethanethiol thiofentanyl A particular narcotic painkiller. thioflavin Either of two dyes (thioflavin S and thioflavin T) used for histology staining and biophysical studies of protein aggregation. thioformaldehyde The simplest thioaldehyde H-CHS. thiofuran thiophene thiogalactopyranosidase Any enzyme that catalyses the hydrolysis of a thiogalactopyranoside thiogalactopyranoside The pyranoside form of a thiogalactoside thiogalactoside A galactoside in which the oxygen that links the aglycone to the sugar is replaced by a sulfur thiogallate Any anion derived from a gallate by replacing one or more oxygen atom by sulfur; any salt containing such an anion thiogenic That converts sulfide into elemental sulfur or into organic sulfur compounds thioglitazone Any of several commercial glitazones thioglucopyranoside Any thioglycoside of a glucopyranose thioglucose A thiolate of glucose thioglucosidase A hydrolase enzyme that catalyzes the chemical reaction a thioglucoside + H₂O ⇌ a sugar + a thiol. thioglucoside Any thioglycoside of glucose thioglucosidic Relating to a thioglucoside thioglycerol 3-mercaptopropane-1,2-diol, a chemical compound used as a matrix in mass spectrometry. thioglycine The thiocarboxylic acid analog of glycine thioglycol Any compound that is both a thiol and an alcohol having the two functional groups on adjacent carbon atoms thioglycolate Any salt or ester of thioglycolic acid. thioglycolated Modified by reaction with a thioglycolate thioglycolic Of or pertaining to thioglycolic acid or its derivatives thioglycollate A sulfur-substituted glycolate thioglycoside Any glycoside in which a hydroxyl group of a sugar is replaced by a sulfide (-SR) group thioglycosylation The reaction, analogous to a glycosylation, that forms a thioglycoside thioguanine US and UK spelling of tioguanine. thioguanosine The compound 2-amino-6-mercapto-9-(b-D-ribofuranosyl)purine formally derived from guanosine by replacing the guanine by thioguanine thiohemiacetal any compound, of general formula R₂C(SR')OH, R₂C(OR')SH or R₂C(SR')SH, derived from a hemiacetal by replacing oxygen with sulfur thiohemiaminal Any hemiaminal that has one or more sulfur atoms thiohemiketal Any thiohemiacetal derived from a ketone or thioketone thiohexamide An antidiabetic drug. thiohydantoin Any derivative of a hydantoin in which one or both carbonyl oxygen atoms are replaced by sulfur thiohydrazone Synonym of thiosemicarbazone. thiohydrolase An enzyme that catalyses the hydrolysis of a thioester thiohydroximate A thio- derivative of a hydroximate thioic Of or pertaining to a thioic acid or its derivatives thioimidate Any thioether of an imine, having general formula R-N=C(SR)R thioimidazole Synonym of mercaptoimidazole. thioindigo Any compound formally derived from indigo by replacing imino groups with sulfur. thioindigoid Derived from, or resembling, thioindigo. thioinosine A derivative of inosine in which the carbonyl group of the hypoxanthine ring is replaced by a thiocarbonyl group thioiodide A mixed sulfide and iodide thioketal The sulfur analogue of a ketal, with one of the oxygen atoms replaced by sulfur. thioketone any analogue of a ketone, of general formula RC(=S)R', in which the oxygen has been replaced by sulfur thiokinase A ligase that synthesizes coenzyme A thioesters. Thiokol Any of various organic polysulfide polymers, used as elastomers in seals and sealants. thiol A univalent organic radical (-SH) containing a sulphur and a hydrogen atom; a compound containing such a radical. thiolactam Any compound formally derived from a lactam by replacing the oxygen atom with sulfur; a cyclic thioamide thiolactomycin A thiolactone antibiotic active against mycobacteria thiolactonase Any enzyme that hydrolyses a thiolactone thiolactone Any of a class of compounds formally derived from the lactones by replacing either, or both, of the oxygen atoms with sulfur thiolane The five-membered saturated heterocycle having four carbon atoms and one sulfur atom; any derivative of this compound thiolase Any enzyme that catalyzes the removal of a thiol group. thiolate Any derivative of a thiol in which a metal atom replaces the hydrogen attached to sulfur RSH => RS⁻M⁺. thiolated reacted with, or converted into a thiol thiolating Converting into a thiol. thiolation reaction with a thiol thiolato A thiolate moiety serving as a substituent thiole thiophene thiolhistidinebetaine Synonym of ergothioneine. thiolic Of or pertaining to a thiol. thiolix Synonym of endosulfan. thioltransferase Any transferase that catalyzes the transfer of a thiol group thiolutin A sulfur-containing antibiotic that is a potent inhibitor of bacterial and yeast RNA polymerases.