n
(organic chemistry) A particular carotenoid.
n
(organic chemistry, archaic) A blue pigment found in algae, soluble in water and glycerol, with intense red fluorescence.
n
(organic chemistry) A red substance, 1,2-dihydroxyanthraquinone, extracted from madder root and used as a dye.
n
(organic chemistry) A particular carotenoid.
n
A medicine containing mainly aloes.
n
(chemistry) A characteristic crystalline substance, obtained from oil of bitter almonds.
n
Alternative form of antheraxanthin [(organic chemistry) A yellow carotenoid pigment found in some protozoa]
n
(organic chemistry) A yellow carotenoid pigment found in some protozoa
n
(organic chemistry) anthocyanin
n
(botany, organic chemistry) Any of many water-soluble red to violet plant pigments related to the flavonoids (more noticeable in autumn after the chlorophyll decomposes)
n
Alternative form of anthocyanin [(botany, organic chemistry) Any of many water-soluble red to violet plant pigments related to the flavonoids (more noticeable in autumn after the chlorophyll decomposes)]
n
(botany, obsolete) A substance isolated from flowers and thought to act as a white pigment.
n
(biochemistry) Any of a group of water-soluble flavonoid pigments found in plants.
n
Alternative form of antheraxanthin [(organic chemistry) A yellow carotenoid pigment found in some protozoa]
n
(organic chemistry) The deoxyanthocyanidin 3-desoxy- pelargonidin 5,7-dihydroxy-2-(4-hydroxyphenyl)benzopyrilium
n
A carotenoid found in spinach and citrus fruits.
n
(organic chemistry) Any compound formed by the removal of fragments of the carbon backbone (usually by oxidative cleavage) of a carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A xanthophyll pigment that occurs widely in plants and animals, especially crustaceans.
n
A yellow pigment used in painting, composed of potassium cobaltinitrite.
n
(organic chemistry) A carotenoid derivative 2-[[(3-methylphenyl)amino]carbonyl]-benzoic acid present in bell peppers
n
(organic chemistry) A minor red pigment in the eyes of Drosophila
n
A particular carotenoid.
n
A yellow-green pigment found in the fungus Cortinarius austrovenetus.
n
An orange pigment found in azafranillo root (Escobedia scabrifolia).
n
(organic chemistry) A particular carotenoid.
n
Alternative spelling of beta-carotene [(biochemistry) A plant pigment that is an isomer of carotene, found in dark green and dark yellow vegetables and fruits and important in the diet as a precursor of vitamin A.]
n
(biochemistry) A plant pigment that is an isomer of carotene, found in dark green and dark yellow vegetables and fruits and important in the diet as a precursor of vitamin A.
n
A class of red and yellow indole-derived water-soluble pigments found in beets and other plants of the Caryophyllales and used commercially as coloring agents.
n
Any of the betalain pigments which appear yellow to orange.
n
(organic chemistry) The xanthene pigment 6,11-dihydroxy-3,8-dimethoxy-1-methylbenzo[b]xanthene-7,10,12-trione
n
(organic chemistry) Any of a class of pteridine found in toad skins
n
(organic chemistry) The xanthophyll (1R,2R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4R)-4-hydroxy-2,6,6-trimethylcyclohexen-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-3,3,5-trimethylcyclohex-4-ene-1,2-diol
n
(organic chemistry) Any of a group of prenylated xanthones present in Calophyllum inophyllum
n
(organic chemistry) A xanthophyll pigment found in many plants and animals.
n
(organic chemistry) A di-hydroxy, keto carotenoid, which, together with capsorubin, constitutes the red pigment of paprika.
n
(organic chemistry) A di-hydroxy, keto carotenoid, which, together with capsanthin, constitutes the red pigment of paprika.
n
(organic chemistry) A white crystalline nitrogenous substance, found in extract of meat, and related to xanthin.
n
(organic chemistry) A class of tetraterpene plant pigments; they vary in colour from yellow, through orange to red, this colour originating in a chain of alternating single and double bonds.
n
Alternative form of carotenoid [(organic chemistry) Any of a class of yellow to red organic pigments including the carotenes and xanthophylls.]
n
(organic chemistry) Any of a class of yellow to red organic pigments including the carotenes and xanthophylls.
n
A yellow pigment; an alcohol of carotene.
n
Alternative form of carotene [(organic chemistry) A class of tetraterpene plant pigments; they vary in colour from yellow, through orange to red, this colour originating in a chain of alternating single and double bonds.]
n
Alternative form of carotin [(organic chemistry) A red crystallizable tasteless substance extracted from the carrot.]
n
(organic chemistry) A red pigment obtained from the safflower, Carthamus tinctorius.
n
(organic chemistry) A marine xanthophyll related to astaxanthin
n
(organic chemistry) A yellow pigment found in Chalciporus fungi.
n
(organic chemistry) A particular carotenoid.
n
A particular carotenoid.
n
(organic chemistry) A synthetic monocyclic xanthophyll pigment, 5',6'-dihydro-5'-apo-18'-nor-beta-caroten-6'-one.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry, obsolete) Polishing rouge; a reddish-brown oxide of iron, used in polishing glass, and also as a pigment.
n
(organic chemistry) A particular carotenoid.
n
A benzotropolone pigment found in the fruiting bodies of the fungus Leccinellum crocipodium.
n
(organic chemistry) An acetylenic carotenoid (3R,6'R)-7,8-didehydro-β,ε-caroten-3-ol
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A naturally occurring alcohol carotenoid.
n
(organic chemistry) A xanthophyll pigment (a hydroxy derivative of carotene) that occurs widely in nature.
n
Alternative form of cyanidin [(organic chemistry) An anthocyanidin pigment, 2-(3,4-dihydroxyphenyl) chromenylium-3,5,7-triol, found in many red berries.]
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A carotenoid (5R)-5-hydroxy-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E,19E,21E)-24-hydroxy-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,21-undecaenyl]-2,4,4-trimethylcyclohex-2-en-1-one present in Deinococcus radiodurans
n
(organic chemistry) A pigment found in phytoplankton, with chemical formula C₄₀H₅₄O₃.
n
A type of xanthophyll found in phytoplankton and diatoms.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A xanthophyll present in dinoflagellates
n
(chemistry, archaic) pyroxanthin
n
A particular xanthophyll.
n
An anthocyanin responsible for the colour of black grapes and thus of red wine.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) the ethyl ester of xanthic acid
n
(organic chemistry) The ethyl ester of xanthogenic acid
n
(chemistry) A xanthonoid glycoside, a conjugate of the aglycone euxanthone with glucuronic acid.
n
Indian yellow or magnesium euxanthate, a transparent yellow pigment used in oil paint.
n
Alternative spelling of euxanthin [Indian yellow or magnesium euxanthate, a transparent yellow pigment used in oil paint.]
n
(organic chemistry) A naturally occurring xanthonoid with the molecular formula C₁₃H₈O₄.
n
A particular carotenoid.
n
(chemistry) a xanthophyll pigment, 5,8-monoepoxylutein, found in the petals of marigolds and other plants
n
A carotenoid pigment (2-dodecyl-3-hydroxy-5-methylphenyl) (2E,4E,6E,8E,10E,12E,14E,16E)-17-(4-hydroxy-3-methylphenyl)heptadeca-2,4,6,8,10,12,14,16-octaenoate present in bacteria of the family Flexibacteraceae
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A carotenoid pigment found in the chloroplasts of brown algae.
n
(organic chemistry) An alcohol derived from fucoxanthin
n
(organic chemistry) An antibiotic pigment. 3,5,10-trihydroxy-7-methoxy-3-methyl-1,4-dihydrobenzo[g]isochromene-6,9-dione, obtained from the Fusarium fungus
n
A certain synthetic dye.
n
(organic chemistry) A yellow compound, formed by oxidation of gallic acid, that is an inhibitor of lactate dehydrogenase
n
(organic chemistry) A xanthophyll carotenoid present in the retinas of chickens
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A blue pigment formed by the reaction of genipin and glycine
n
(organic chemistry) The yellow pigment 9-[(2R)-2-acetamido-2-carboxyethyl]sulfanyl-8-amino-7-oxophenoxazine-2-carboxylic acid
n
A vegetable jelly, resembling pectin, found in gooseberries and other fruits.
n
(organic chemistry) The carotenoid 3S,3'R,5R,6R)-7',8'-didehydro-5,6-dihydro-β,β-carotene-3,3',5,6-tetrol
n
(organic chemistry) A particular carotenoid.
adj
(chemistry) persulphocyanic
n
(organic chemistry) A pigment, 11-(3-amino-3-carboxypropanoyl)-5-hydroxy-1-oxo-4,12-dihydropyrido[3,2-a]phenoxazine-3-carboxylic acid, found in the eye of Drosophila melanogaster
n
(organic chemistry) A particular carotenoid.
n
(archaic) A yellow dye obtained from holly leaves.
n
(organic chemistry) A particular pigment found in beets.
n
(organic chemistry) A gummy red pigment extracted from the clear juice of the Otaheite chestnut (Inocarpus fagifer).
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A red-orange pigment found in Boletales, the isomer of xerocomic acid.
n
Synonym of cryptoxanthin
n
(organic chemistry) A hydroxylated carotenoid found in plants of the genus Lactuca.
n
A yellow pigment obtained from the scales of diurnal Lepidoptera, and from which lepidoporphyrin may be obtained.
n
(chemistry) A particular fraction of litmus.
n
A colourless chemical compound related to leucoanthocyanidins and found in various plants.
n
(organic chemistry) A particular leucoanthocyanidin compound.
n
(organic chemistry) A yellow pigment found in some lichens.
n
(archaic) A yellow pigment in lichens.
n
(organic chemistry) A yellow pigment found in the small round fat drops in the retinal epithelium cells.
n
A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A yellow carotenoid pigment, widely distributed in both plants and animals.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A red carotenoid pigment found in tomatoes, other red vegetables, and in animal tissue; there is some evidence that it may lower the risk of prostate cancer.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A xanthone, 5,9,10-trihydroxy-2,2-dimethyl-12-(2-methylbut-3-en-2-yl)pyrano[3,2-b]xanthen-6-one, present in the rots of some plants
n
(organic chemistry) A xanthonoid present in mangosteen
n
(organic chemistry) Any of a class of fluorescent dyes, some of which are notable for their solvatochromatic properties.
n
(organic chemistry) Any of a group of compounds, such as caffeine, formed through the methylation of xanthines.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A xanthophyll present, as a glycoside, in cyanobacteria of the former phylum Myxophyceae
n
(organic chemistry) A dyestuff, resembling alizarin, obtained from naphthoquinone as a red crystalline substance with a bright green, metallic lustre.
n
(organic chemistry) A particular carotenoid.
n
A major xanthophyll found in green leafy vegetables. It is an intermediate in the biosynthesis of the plant hormone abscisic acid.
n
(organic chemistry) A carotenoid present in fungi of the genus Neurospora.
n
Alternative form of neurosporaxanthin [(organic chemistry) A carotenoid present in fungi of the genus Neurospora.]
n
A carotenoid pigment that is an intermediate in the biosynthesis of lycopene and a variety of bacterial carotenoids.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A carotenoid (1R,2R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4R,5R)-4,5-dihydroxy-2,6,6-trimethylcyclohexen-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-3,3,5-trimethylcyclohex-4-ene-1,2-diol present in some bacteria and blue-green algae
n
(organic chemistry) A particular carotenoid.
n
(chemistry) a dye, related to litmus, that is extracted from the lichen Rocella tinctoria; used as a microscopic stain and as a food colouring
n
A flavonoid pigment found in the horseapple.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A nitrogenous substance, C₆H₄N₄O₅, obtained by the reduction of parabanic acid.
n
Synonym of paeonol (“when a plant extract”)
n
(organic chemistry) Any of a group of yellow pigments found in the wings of papilionid butterflies
n
(organic chemistry) A carotenoid (6S)-6-hydroxy-2,4,4-trimethyl-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-[(1R)-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl]octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-2-en-1-one in the kin and feathers of birds
n
(organic chemistry) A particular carotenoid.
n
A toxic compound found in rowan berries.
n
(organic chemistry) A crystalline substance closely related to xanthin, present in small quantities in urine.
n
(organic chemistry) A metabolite of caffeine.
n
(organic chemistry) A xanthanolide found in Parthenice mollis.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A red and purple pigment found in certain crinoids of the genus Pentacrinus.
n
(organic chemistry) An organic compound found in peaches, plums, and related fruits.
n
An anthocyanidin responsible for the dark red or purple colour in many berries and flower petals.
n
(biochemistry) The carotenoid pigment of brown algae, mostly composed of fucoxanthin
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(dated) A yellowish colouring matter found in certain algae.
n
Alternative form of phycoxanthin [(dated) A yellowish colouring matter found in certain algae.]
n
(obsolete, organic chemistry) A yellow pigment obtained by degradation of chlorophyll.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A tricarboxylic acid (17~{S},18~{S})-18-(2-carboxyethyl)-20-(carboxymethyl)-12-ethenyl-7-ethyl-3,8,13,17-tetramethyl-17,18,22,23-tetrahydroporphyrin-2-carboxylic acid derived from porphyrin
n
(organic chemistry) An orange-coloured carotenoid pigment found in tomatoes and other vegetables.
n
(organic chemistry) A sesquiterpenoid lactone found in bacterially-rotted potato tubers
n
A flavonoid pigment found in the horseapple.
n
(organic chemistry) The xanthophyll (3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-1-[(1~{R},4~{S})-1,4-dihydroxy-2,2-dimethyl-6-methylidenecyclohexyl]-18-[(1~{R},4~{R})-4-hydroxy-2,6,6-trimethylcyclohex-2-en-1-yl]-3,7,12,16-tetramethyloctadeca-3,5,7,9,11,13,15,17-octaen-2-one characteristic of prasinophycean algae
n
An antioxidant flavonoid with possible health benefits, found in many plant sources, including apples, bilberry, grapeseed, pine bark, and black chokeberry.
n
(organic chemistry) A flavonoid that induces apoptosis
n
(organic chemistry) 1,3-dihydroxyanthraquinone
n
(chemistry, obsolete) A yellow pigment isolated from Bacillus pyocyanicus.
n
(chemistry, archaic) A greenish-yellow crystalline colouring matter found with pyocyanin in pus.
n
(botany, organic chemistry) A type of anthocyanin found in Monnina obtusifolia.
n
Any of a group of xanthene dyes used to stain RNA, especially in electrophoresis.
n
(organic chemistry) A yellow, crystalline substance obtained from creosote etc; it seems to be a polycyclic aromatic hydrocarbon.
n
(obsolete, organic chemistry) The component of wood tar from which pyroxanthin is obtained
n
(organic chemistry) A particular carotenoid.
n
(biochemistry) The main sulfur component found in radish seeds of Raphanus sativus and in broccoli and red cabbage.
n
Any of a group of naphthoquinone esters isolated from the roots of Rhinacanthus nasutus, the snake jasmine.
n
(organic chemistry) A red ommochrome found in the wings of lepidoptera
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A xanthophyll pigment found in many plants, and in bird feathers.
n
(organic chemistry) A red compound, formed by the reaction of curcumin and borates, that is used in the analysis of borates in food
n
(organic chemistry) A monocyclic xanthophyll pigment found in rose hips and elsewhere.
n
(organic chemistry) A particular carotenoid.
n
(biochemistry) The light-harvesting carotenoid antenna of xanthorhodopsin.
n
(organic chemistry) A rare monocyclic carotenoid.
n
(organic chemistry) A yellow pigment found in Scleroderma citrinum.
n
(organic chemistry) An organic compound found in tangerines and related fruits.
n
(organic chemistry) The apocarotenoid 8'-methyl-8'-apo-b-caroten-8'-one
n
(organic chemistry) A particular carotenoid.
n
Alternative spelling of siphonaxanthin [(organic chemistry) A particular carotenoid.]
n
(organic chemistry) Any of a group of xanthones present in the plant Garcinia smeathmanii
n
(organic chemistry) The carotenoid (4E,6E,8E,10E,12E,14E,16E,18E,20E,22E,24E,26E,28E)-2,31-dimethoxy-2,6,10,14,19,23,27,31-octamethyldotriaconta-4,6,8,10,12,14,16,18,20,22,24,26,28-tridecaene present in the photosynthetic bacterium Rhodospirillum rubrum
n
A carotenoid pigment produced by some strains of Staphylococcus aureus, which acts as a virulence factor.
n
(organic chemistry) A blue pigment found in some stentors.
n
(organic chemistry) An aromatic carotenoid in the cyanobacterium Synechococcus
n
(organic chemistry) A particular carotenoid.
n
A particular carotenoid found in Taraxacum.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A carotenoid present in Trollius europaeus.
n
An acridine dye thought to be identical with flavine or acriflavine.
n
(organic chemistry) A red or crimson pigment obtained from certain feathers of several species of turacou.
n
(organic chemistry) A green pigment found in the feathers of the turacou.
n
A poisonous compound found in the New Zealand tutu plant, with powerful convulsant effects.
n
(chemistry) An alkaline salt of fluorescein, used as a brownish-red dye.
n
(organic chemistry) A pigment found in various citrus fruits.
n
(organic chemistry) A carotenoid found in Valencias and other oranges.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A complex xanthone, produced by Penicillium vinaceum, that is a phospholipase inhibitor
n
(chemistry, archaic) A complex nitrogenous substance derived from barbituric acid.
n
(organic chemistry) A xanthophyll pigment (a di-epoxide, derived from zeaxanthin) that occurs in many plants.
n
(organic chemistry) Any of a group of betaxanthins found in red beets, Swiss chard, etc.
n
(organic chemistry) A particular carotenoid.
n
a natural gum, produced by the fermentation of sugars by the bacterium Xanthomonas campestris; used as a food additive
n
(biochemistry) Any of several glycosides containing xanthan
n
(organic chemistry) The sesquiterpenoid xanthanolide (3~{a}~{R},7~{S},8~{a}~{S})-7-methyl-3-methylidene-6-[(~{E})-3-oxobut-1-enyl]-4,7,8,8~{a}-tetrahydro-3~{a}~{H}-cyclohepta[b]furan-2-one present in Xanthium strumarium leaves
n
(chemistry) Conversion into a xanthate.
n
The aglycone of quercitrin.
n
(chemistry) The water-soluble part of the yellow carotenoid pigment present in the cell sap of some plants.
n
Alternative form of xanthein [(chemistry) The water-soluble part of the yellow carotenoid pigment present in the cell sap of some plants.]
n
A yellow pigment formed by the action of nitric acid on haematin
n
(organic chemistry) any of a group of tricyclic heterocycles (dibenzopyrans) that are the basis for a range of dyes such as fluorescein and eosin
n
A compound of xanthogen.
n
Alternative spelling of xanthine [(chemistry) Any of a group of alkaloids that include caffeine, theophylline, and theobromine as well as the parent compound, a precursor of uric acid found in many organs of the body.]
n
(chemistry) Any of a group of alkaloids that include caffeine, theophylline, and theobromine as well as the parent compound, a precursor of uric acid found in many organs of the body.
n
Alternative form of xanthinine [(obsolete, organic chemistry) A poorly-characterised material, related to urea and uric acid, that forms yellow salts, and exhibits a blue fluorescence]
n
(obsolete, organic chemistry) A poorly-characterised material, related to urea and uric acid, that forms yellow salts, and exhibits a blue fluorescence
n
(organic chemistry) The sesquiterpenoid xanthanolide (3~{a}~{R},7~{S},8~{a}~{S})-7-methyl-3-methylidene-6-(3-oxobutyl)-4,7,8,8~{a}-tetrahydro-3~{a}~{H}-cyclohepta[b]furan-2-one present in Xanthium strumarium leaves
n
A saturated thioxanthene preparation.
n
A yellow fibrous earthy material that is an aluminium titanite
n
(organic chemistry) A chalcone, found in Angelica keiskei, that induces apoptosis
n
(organic chemistry) An antibacterial compound found in Garcinia xanthochymus.
n
Alternative form of xantocillin [The first reported natural product found to contain the isocyanide functional group, originally isolated from Penicillium notatum in 1950.]
n
Alternative form of xanthocreatinine [The organic compound with chemical formula C₅H₁₀N₄O, related to creatinine.]
n
The organic compound with chemical formula C₅H₁₀N₄O, related to creatinine.
n
A complex xanthone related to vinaxanthone.
n
(chemistry, dated) Formerly, a hypothetical radical supposed to be characteristic of xanthic acid.
adj
(organic chemistry) xanthic
n
(organic chemistry) An acid, CS₂C₂H₅OH, formed from the decomposition of potassic xanthogenate.
n
A prenylated chalconoid from hops and beer, with a range of biological properties and potential therapeutic utility.
n
Alternative form of xanthocreatinine [The organic compound with chemical formula C₅H₁₀N₄O, related to creatinine.]
n
A quinone pigment obtained from a fungus.
n
(organic chemistry) A yellow ommochrome found in the wings of lepidoptera
n
Alternative form of xanthommatin [(organic chemistry) A yellow ommochrome found in the wings of lepidoptera]
n
Any of a class of yellow pigments present in the protobacterium Xanthomonas
n
(organic chemistry) An aromatic ketone, 9-oxo-xanthene, that is used as an insecticide.
n
(organic chemistry) A phenolic compound having a xanthone backbone; many derivatives of this compound that occur in nature, and are biologically active
n
(biochemistry) The yellow form of chromophane
n
Alternative form of xanthophil
n
(organic chemistry, uncountable) Lutein.
n
(organic chemistry) A bitter principle obtained from the bark of Zanthoxylum clava-herculis.
n
(organic chemistry, archaic) A bitter crystalline alkaloid extracted from plants of family Xanthoxylaceae.
n
A non-crystallizable yellow substance derived from proteins upon treatment with nitric acid.
n
A protein formed when xanthoproteic acid contacts epithelial cells, indicative of inadequate safety precautions when handling nitric acid.
n
A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals, converted by microorganisms into folic acid.
n
Alternative form of xanthopterin [A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals, converted by microorganisms into folic acid.]
n
(organic chemistry, obsolete) A supposed alkaloid related to berberine, possibly just an impure form of it.
n
(organic chemistry) An alkaloid resembling berberine, found in the root of the yellow puccoon (Hydrastis canadensis).
n
(organic chemistry) A chemical compound found in buckthorn berries (Rhamnus cathartica).
n
(biochemistry) A light-driven carotenoid proton pump found in Salinibacter ruber
n
(biochemistry) An anthraquinone compound found in Xanthoria elegans, the elegant sunburst lichen.
n
(organic chemistry, -) A sesquiterpenoid, present in Curcuma xanthorrhiza, thought to show anticancer and antimicrobial activity
n
A complex formed between xanthine and ribose
n
(organic chemistry) A nucleoside derived from xanthine and ribose.
n
(alchemy) Synonym of citrinitas
n
Any arum of the genus Xanthosoma.
n
(organic chemistry) The furanocoumarin 9-hydroxyfuro[3,2-g]chromen-7-one
n
An intermediate in the biosynthesis of the plant hormone abscisic acid.
n
(archaic, chemistry) A terpene extracted from the seeds of the Japanese prickly ash (Zanthoxylum pipertium).
n
(organic chemistry) A coumarin, 5-methoxy-2,2-dimethylpyrano[3,2-g]chromen-8-one, found in prickly ash (Zanthoxylum americanum)
n
(organic chemistry, obsolete) The active principle of the prickly ash (formerly in genus Xanthoxylum, now Zanthoxylum).
n
Alternative form of xanthoxylin [(organic chemistry, obsolete) The active principle of the prickly ash (formerly in genus Xanthoxylum, now Zanthoxylum).]
n
(organic chemistry) The compound 4,8-dihydroxyquinoline-2-carboxylic acid that is excreted by animals that are deficient in pyridoxine after ingestion of tryptophan
n
(organic chemistry) A phytoalexin, 2,2-dimethylpyrano[3,2-g]chromen-8-one, found in citrus plants infected with Phytophthora.
n
(organic chemistry) 1,3-dihydroxyanthraquinone
n
(organic chemistry) A pigment found in Boletales fungi; the oxidized form of isoxerocomic acid.
n
(organic chemistry) A polyunsaturated, acetylenic lactone, produced by Basidiomycetes bacteria, that inhibits cholesterol biosynthesis
n
A quinone pigment, a dimeric naphthoquinone derivative, responsible for the characteristic bluish-green stain of wood infected by the Chlorociboria aeruginascens mushroom.
n
(archaic) A kind of dye derived from the tannin in wood.
n
A bitter principle obtained from the berries of the fly honeysuckle (Lonicera xylosteum) and formerly used in medicine.
n
(organic chemistry) A particular carotenoid.
n
(organic chemistry) A yellow crystalline carotenoid alcohol that occurs widely with lutein, with which it is isomeric, and is the chief pigment of maize
n
Alternative form of zeaxanthin [(organic chemistry) A yellow crystalline carotenoid alcohol that occurs widely with lutein, with which it is isomeric, and is the chief pigment of maize]
n
A carotenol, dihydroxy-β-carotene.
n
A yellow carotenoid pigment present in the feathers of some birds
n
(organic chemistry) A carotenoid pigment, of uncertain composition, obtained from some feathers
n
Alternative spelling of beta-carotene [(biochemistry) A plant pigment that is an isomer of carotene, found in dark green and dark yellow vegetables and fruits and important in the diet as a precursor of vitamin A.]
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