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Alternative spelling of abietin [(organic chemistry) A resin obtained from Strasburg turpentine or Canada balsam. It is without taste or smell, is insoluble in water, but soluble in alcohol (especially at the boiling point), in strong acetic acid, and in ether.]
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(organic chemistry) The pyrazolopyrimidine 1H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione that is an inhibitor of xanthine oxidase
n
A particular organic carcinogen.
n
(organic chemistry) Any of a class of isoprenoid-substituted benzoic acid derivatives found in Amorpha fruticosa.
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(organic chemistry) Any of a group of yellow plant pigments that have a chalcone or aurone structure
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(organic chemistry) Any of a class of molecules consisting of an anthocyanidin backbone with specific sugars attached.
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(organic chemistry) 1,5-dihydroxyanthraquinone
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(organic chemistry) A pigment and antibiotic macrolide (1R,3R,4R,5R,7R,9R,11S,12S,13S)-5-(6-aminopurin-9-yl)-1,4,12,13-tetrahydroxy-2,6,10-trioxatricyclo[7.4.0.03,7]tridecane-11-carboxylic acid produced by Streptomyces aureofuscus
n
(organic chemistry) An organic compound found in Aspergillus species.
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(organic chemistry) A purplish-red material, of uncertain composition, that is the principal colouring matter of litmus
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A resin obtained from benzoin
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(chemistry) a phenolic quinone that is the main constituent of cochineal
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(chemistry) any carotenoid containing an aldehyde functional group
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(organic chemistry) Specifically, a number of isomers of tetraterpene hydrocarbons, C₄₀H₅₆, (especially beta-carotene), present in carrots etc, which are converted into vitamin A in the liver.
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(organic chemistry) A bitter yellow substance forming the essential constituent of Goa powder, and yielding chrysophanic acid.
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Alternative form of chrysoidine [A yellow-orange crystalline dye, C₆H₅N₂.C₆H₃(NH₂)₂.]
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A yellow-orange crystalline dye, C₆H₅N₂.C₆H₃(NH₂)₂.
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(organic chemistry) An organic compound found in rhubarb, having chemical formula C₁₅H₁₀O₄.
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(organic chemistry) A yellow crystalline substance, (C₆H₅.C₂H₂)₂CO, the ketone of cinnamic acid.
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(chemistry) A corrinoid.
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(chemistry) A polyphenol (1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione; a major constituent of the spice turmeric.
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Alternative form of curcumin [(chemistry) A polyphenol (1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione; a major constituent of the spice turmeric.]
n
(organic chemistry) Any of many naturally-occurring or synthetic phenols that are derivatives of curcumin
n
(organic chemistry) A pigment derived from atromentin.
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(biochemistry) A compound involved in melanin production.
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(organic chemistry) Any of a group of derivatives of xanthone that have some anticancer properties
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(organic chemistry) The xanthone 8-hydroxy-1-(hydroxymethyl)-3-methyl-2-(3-methylbut-2-enoxy)-5-(3-methylbut-2-enyl)xanthen-9-one produced by the fungus Aspergillus nidulans
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(organic chemistry, biochemistry) Any epoxy derivative of a carotenoid, especially one involved in the biosynthesis of abscisic acid
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(organic chemistry) Any of a group of toxic pigments present in ergot
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(organic chemistry, obsolete) A pale yellow substance, isomeric with indin and indigo blue, produced by the action of potash on indin.
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(organic chemistry) mannite
n
(organic chemistry) Any of a group of benzofurans (especially 10-(1,3-benzodioxol-5-yl)-9H-[2]benzofuro[6,5-g][1,3]benzodioxol-7-one) that suppress gene expression of human hepatitis B virus
n
A derivative of 2-acetylaminofluorene used as a biochemical tool in the study of carcinogenesis.
n
(organic chemistry) Any carotenoid that has one or more hydroxyl group (typically an even number)
n
(biochemistry) A metabolite of tryptophan that filters ultraviolet light in the human lens.
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(organic chemistry, medicine) A red-coloured anthraquinone derivative, extracted from St John's wort or prepared synthetically, used as an antidepressant and antiviral agent.
n
(organic chemistry) A dark yellow crystalline substance obtained by the action of ammonia on isatin.
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(organic chemistry) A glucoside obtained from woad and other plants, the source of natural indigo.
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(organic chemistry) A brown amorphous powder obtained from indican.
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Alternative form of indigotin [(organic chemistry) A dark blue compound that is the principal dye in indigo]
n
An iodinated form of resiniferatoxin, produced by the Moroccan succulent Euphorbia resinifera.
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(medicine, archaic) A compound of tannin and iodine, used as an alterative and astringent.
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Alternative form of isatin [(organic chemistry) The indole derivative 1H-indole-2,3-dione, used in the synthesis of dyes.]
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(organic chemistry) A cis-trans isomer of zeaxanthin
n
(organic chemistry) A colourless or pale yellow liquid compound extracted from the volatile portion of the oil from jasmine flowers, used in perfumery and cosmetics.
n
August Kekulé, the discoverer of benzene
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(organic chemistry) A red chemical pigment from the insect kermes dye named 1-methyl-2-carboxy-3,5,6,8-tetrahydroxyanthraquinone.
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(organic chemistry) An insect-repellent substance found in vetiver oil.
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Alternative form of quinic acid [(organic chemistry) A white crystalline acid, tetrahydroxy-cyclohexanecarboxylic acid, obtained from cinchona bark, coffee beans and yerba mate; used as an astringent, and in the synthesis of pharmaceuticals]
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(organic chemistry) A colourless crystalline organic base, obtained from rosaniline by reduction, and also from other sources.
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(organic chemistry) A complex organic acid, obtained as a yellowish-white gum by the oxidation of croconic acid.
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(organic chemistry) The fluorescent dye 7,8-dimethyl-1H-benzo[g]pteridine-2,4-dione
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(organic chemistry) A yellow dyestuff extracted from the rootbark of an East Indian plant, Morinda citrifolia.
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(organic chemistry) A reddish-orange colouring substance resembling alizarin, found in the root of an East Indian species of madder, Rubia manjith ( <= Rubia munjista).
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(organic chemistry) A white crystalline substance, obtained from an exudation from the olive, and having a bittersweet taste and acid properties.
n
(organic chemistry) A sulfur-containing compound isolated from onions, having anticancer properties.
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(organic chemistry) A white crystalline substance which is obtained indirectly from the root of an umbelliferous plant, Imperatoria oreoselinum, and yields resorcin on decomposition.
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(organic chemistry) Any of a group of antioxidant mercaptohistidines found in the eggs of some marine invertebrates
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(organic chemistry) 1,2,5-trihydroxyanthraquinone
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(organic chemistry) 1,2,8-trihydroxyanthraquinone
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(organic chemistry) The compound C₂₀H₁₈N₄, obtainable from mauveine.
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(organic chemistry) A toxic substance in the flowering plant Parthenium hysterophorus, causing dermatitis and respiratory malfunction in humans, and is toxic to other plants.
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(chemistry, dated) A yellowish-brown powder obtained by the action of sulphuric acid on glacial acetic acid and phenol.
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Any tannin related to or composed of phlobaphenes
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(biochemistry, pharmacology) A yellow oily naphthoquinone C₃₁H₄₆O₂ that is obtained especially from alfalfa, cabbage, spinach, and other leafy green vegetables or made synthetically and that has a fast, potent, and prolonged biological effect. It is essential for the blood-clotting process, effective orally, and useful especially in treating hypoprothrombinemia induced by anticoagulant drugs (trademark Mephyton).
n
(biochemistry, pharmacology) Alternative form of phytomenadione. [(biochemistry, pharmacology) A yellow oily naphthoquinone C₃₁H₄₆O₂ that is obtained especially from alfalfa, cabbage, spinach, and other leafy green vegetables or made synthetically and that has a fast, potent, and prolonged biological effect. It is essential for the blood-clotting process, effective orally, and useful especially in treating hypoprothrombinemia induced by anticoagulant drugs (trademark Mephyton).]
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(organic chemistry) A dark blue dyestuff obtained from wood-tar oil, the first to be commercially produced.
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(biochemistry) The polymeric tannins, composed of gallocatechin, that yield delphinidin during depolymerization under oxidative conditions.
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(organic chemistry) A particular oxepinochromone.
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(chemistry) A hydrophilic, pH-sensitive fluorescent arylsulfonate dye.
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(chemistry, archaic) A yellow crystalline substance produced artificially and isomeric with alizarin.
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(organic chemistry, archaic) A certain acid obtained from cinchona bark.
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(organic chemistry) A red, fluorescent dye, 7-hydroxy-3H-phenoxazin-3-one, related to resazurin
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(organic chemistry) An anthraquinone found in rhubarb.
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(chemistry) A yellowish-red crystalline substance related to anthracene and obtained from opianic acid.
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(chemistry) A phenol derivative of anthracene which on oxidation produces a red dyestuff related to anthraquinone.
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(organic chemistry) A colourless to yellow liquid, a component of sassafras oil and brown camphor oil, with pesticidal properties.
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(archaic, medicine) A dark brown oily compound containing phenol, creosol, and other hydrocarbons such as coal tar products, used as a disinfectant.
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(organic chemistry) Any carotenoid based on a triterpenoid, rather than the normal tetraterpenoid backbone
n
(medicine, obsolete) benzoinated suet
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(organic chemistry) A lactone and extremely powerful aroma compound, which smells of fenugreek or curry at high concentrations and maple syrup or caramel at lower concentrations.
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(organic chemistry) The carotenoid ketone (4E,6E,8E,10E,12E,14E,16E,18E,20E,22E,26E)-2-methoxy-2,6,10,14,19,23,27,31-octamethyldotriaconta-4,6,8,10,12,14,16,18,20,22,26,30-dodecaen-3-one
n
(organic chemistry) A hydroxychromone derivative, present in the myxobacterium Stigmatella aurantica, that inhibits oxidation of cytochrome complexes
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(organic chemistry, pharmacology) A bitter crystalline compound present in small quantities in tea leaves, isomeric with theobromine; used as a drug in therapy for respiratory diseases.
n
(organic chemistry) A tricyclic ketone derivative of thioxanthene having a carbonyl group opposite the sulfur atom
n
(organic chemistry, obsolete) A supposed acid sometimes found in human urine that darkens on exposure to alkali; later determined to be a mixture of substances.
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(dated, organic chemistry) Any derivative of xanthogen
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(organic chemistry) The thione analog of xanthine, 9H-xanthene-9-thione
n
The alkaloid (6aS)-1,2,10-trimethoxy-6,6-dimethyl-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinolin-6-ium-9-ol
n
(organic chemistry) An organic compound with chemical formula C₁₃H₁₀O₂, used to test the levels of urea in the bloodstream.
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(organic chemistry) The univalent radical derived from xanthine.
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(chemistry) A yellow oil that is a side product of making phorone.
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