xanthene


Also found in: Dictionary, Medical, Wikipedia.
Related to xanthene: xanthene dye

xanthene

[′zan‚thēn]
(organic chemistry)
CH2(C6H4)2O Yellowish crystals that are soluble in ether, slightly soluble in water and alcohol; melts at 100°C; used as a fungicide and chemical intermediate. Also known as tricyclic dibenzopyran.
References in periodicals archive ?
The general procedure for the synthesis of novel aromatic polyamides containing both fluorene or xanthene cardo moieties and fluorinated phenoxy pendant groups can be illustrated by the preparation of polymer I.
Xanthenes dyes are widely used, mainly for optical sensing of [O.
Spectrophotometric determination of some fluoroquinolone antibacterials by binary complex formation with xanthene dyes", Il farmaco Vol.
These papers represent some of the latest developments and covers some surprisingly multidisciplinary topics, such as the elucidation of electron-transfer pathways in copper and iron proteins by pulse radiolysis; peptide- or protein-cleaving agents based on metal complexes; the structure of coordination polymers of the lanthanide elements; the supramolecular chemistry of gases; the organometallic chemistry of Rh-, Ir , Pd- and Pt-based radicals; unique complexes in the diverse world of metal-alkyne chemistry; oxygen activation chemistry of Pacman and Hangman porphyrin architecture based on xanthene and dibenzofuran spacers; metal-containing nucleic acid structures based on synergetic hydrogen and coordination bonding; and bispidine coordination chemistry.
Phloxine B is a water-soluble halogenated xanthene dye that has recently gained popularity as an insect pesicide.
Tailor-made solutions/segmentation Innovations and value-adding benefits Table 2: Color Index Numbers Are Related to Chromophores Chromophore CI Number Azo (CI 11XXX-35XXX) Triarylmethane (CI 42XXX-44XXX) Xanthene (CI 45XXX) Quinoline (CI 47XXX) Anthraquinone (CI 58XXX-72XXX) Indigoid (CI 73XXX) Phthalocyanine (CI 74XXX) Inorganic (CI 77XXX)
These include naturally occurring molecules such as chiorophylls, porphyrins, phthalocyanines, flavins, thiazine dyes, acridine dyes, anthraquinone dyes, xanthene dyes, hypercin, tetracyclines, sulfanilamides, psoralens, nalidixic acid, coal tar derivatives, chlorpromazines and aminobenzoic acid derivatives, to name but a few.
2]octan-3-one 3731-38-2 Vernolate (vernam) 1929-77-7 Xanthene 92-83-1 Street Compound name Market Cherry Cortlandt 2-Hexyl-1-decanol ND 37.
Mutagenicity testing of certified food colors and related azo, xanthene and triphenylmethane dyes with the Salmonella/microsome system.
Keyplast Yellow BT is a fluorescent yellow xanthene that, the manufacturer says, offers excellent heat and light stability in engineering resins.
In the case of fluorescein, the pKa of the OH group attached to the xanthene moiety can be 6.