a crystalline compound, C13H8O2, that provides the basis for several natural pigments
xanthone in American English
(ˈzænˌθoʊn)
noun
a ring ketone, C6H4(CO)OC6H4, occurring in some plant pigments and dyes
Word origin
xantho- + -one
Examples of 'xanthone' in a sentence
xanthone
The xanthone derivatives are grouped in three sets: xanthones, hydroxanthones and glycosylated derivatives.
Daniela R. P. Loureiro, José X. Soares, Joana C. Costa, Álvaro F. Magalhães, CarlosM. G. Azevedo, Madalena M. M. Pinto, Carlos M. M. Afonso 2019, 'Structures, Activities and Drug-Likeness of Anti-Infective Xanthone Derivatives Isolatedfrom the Marine Environment: A Review', Moleculeshttp://www.mdpi.com/1420-3049/24/2/243. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
It reacts with phenols yielding the corresponding xanthone ketyl radical.
Ada Ruth Bertoti, José Carlos Netto-Ferreira 2013, 'Determinação da constante de velocidade absoluta para a reação de abstração de hidrogêniofenólico pelo estado excitado triplete de xantona em acetonitrila e no líquido iônicohexafluorfosfato de 1-butil-3-metil-imidazólio [bmim.PF6]', Química Novahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000400008&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The three compounds were stigmasterol, prenylated xanthone isobractatin and its epimer (in a mixture).
Sri Hartati, I Ketut Triyono, Sri Handayani 2014, 'Cytotoxic Isobractatin (Prenylated Xanthone) Epimer Mixture of Garcinia eugenifolia',Indonesian Journal of Chemistryhttps://jurnal.ugm.ac.id/ijc/article/view/21239. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The xanthone-rich purple pericarp tissue contains valuable compounds with medicinal properties.
Syuhaidah Abu Bakar, Suresh Kumar, Kok-Keong Loke, Hoe-Han Goh, Normah Mohd Noor 2017, 'DNA shotgun sequencing analysis of Garcinia mangostana L. variety Mesta', Genomics Datahttp://www.sciencedirect.com/science/article/pii/S2213596017300818. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This equation model generated 15 proposed new xanthone compounds with better-predicted anticancer activities.
Miladiyah I, Jumina J, Haryana SM, Mustofa M 2018, 'Biological activity, quantitative structure–activity relationship analysis,and molecular docking of xanthone derivatives as anticancer drugs', Drug Design, Development and Therapyhttps://www.dovepress.com/biological-activity-quantitative-structure-activity-relationship-analy-peer-reviewed-article-DDDT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Taken together, these findings strongly suggest that xanthone 7 might be a novel angiogenesis inhibitor.
Jianhong Yang, Shichao He, Shucai Li, Ronghong Zhang, Aihua Peng, Lijuan Chen 2013, 'In Vitro and In Vivo Antiangiogenic Activity of Caged Polyprenylated Xanthones Isolatedfrom Garcinia hanburyi Hook. f.', Moleculeshttp://www.mdpi.com/1420-3049/18/12/15305. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The three ring systems of the xanthone skeleton are approximately coplanar, with an r.m.s.
Nawong Boonnak, Suchada Chantrapromma, Hoong-Kun Fun 2013, 'Racemic 2′-hydroxy-4′,4′-dimethylpyran-1,5-dihydroxyxanthone monohydrate',Acta Crystallographica Section Ehttp://scripts.iucr.org/cgi-bin/paper?S1600536813021223. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Quinonoid and xanthone pigments have systematically interesting distribution patterns.
J.B. HARBORNE, C.A. WILLIAMS 2000, 'THE PHYTOCHEMICAL RICHNESS OF THE IRIDACEAE AND ITS SYSTEMATIC SIGNIFICANCE', Annali di Botanicahttp://ojs.uniroma1.it/index.php/Annalidibotanica/article/view/9061. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)