Parietina Referencias Enlaces externos Menú de navegación68791CHEMBL426241019310639H6PT94IV611S/C16H12O5/c1-7-3-9-13(11(17)4-7)16(20)14-10(15(9)19)5-8(21-2)6-12(14)18/h3-6,17-18H,1-2H3FFWOKTFYGVYKIR-UHFFFAOYSA-NNúmero CASCaloplaca coralloides chemistry10.1016/j.cropro.2004.05.00510.1016/S0022-2860(02)00384-810.1007/BF00333715sus editores

AntifúngicosAntraquinonasFenol éteres


fórmula químicaKOHfenarimolpolioxina B




























 
Parietina

Parietin.svg
Nombre IUPAC

1,8-dihydroxy-6-methoxy-3-methyl-anthracene-9,10-dione
General
Otros nombres
Physcion(e), rheochrysidin, methoxyemodin
Fórmula estructural
Imagen de la estructura
Fórmula molecular
C16H12O5
Identificadores
Número CAS
521-61-9[1]​
ChEBI
68791
ChEMBL
CHEMBL42624
ChemSpider
10193
PubChem
10639
UNII
H6PT94IV61




Propiedades físicas
Apariencia
naranja/amarillo
Masa molar
284.26348 g/mol
Valores en el SI y en condiciones estándar
(25 ℃ y 1 atm), salvo que se indique lo contrario.

La parietina, con fórmula química C16H12O5, es el pigmento cortical predominante de los líquenes del género Caloplaca, un producto secundario del liquen Xanthoria parietina, y un pigmento que se encuentra en las raíces de Rumex crispus. Tiene un color amarillo-naranja y absorbe la luz azul.


Reacciona con KOH para formar un compuesto de color rojizo-magenta profundo.


También ha demostrado actividad anti-hongos contra el moho pulverulento de la cebada y el moho del pepino, de manera más eficiente en este último caso que los tratamientos con fenarimol y polioxina B.



Referencias



  1. ↑ Número CAS



  • Caloplaca coralloides chemistry


  • Choi, Gyung Ja; Seon-Woo Lee, Kyoung Soo Jang, Jin-Seog Kim, Kwang Yun Cho and Jin-Cheol Kim (diciembre de 2004). «Effects of chrysophanol, parietin, and nepodin of Rumex crispus on barley and cucumber powdery mildews». Crop Protection 23 (12): 1215-1221. doi:10.1016/j.cropro.2004.05.005.  La referencia utiliza el parámetro obsoleto |coautores= (ayuda)


  • Edwards, Howell G. M.; Emma M. Newton, David D. Wynn-Williams, and Steven R. Coombes (12 de marzo de 2003). «Molecular spectroscopic studies of lichen substances 1: parietin and emodin». Journal of Molecular Structure 648 (1–2): 49-59. doi:10.1016/S0022-2860(02)00384-8.  La referencia utiliza el parámetro obsoleto |coautores= (ayuda)


  • Solhaug, Knut A.; Yngvar Gauslaa (noviembre de 1996). «Parietin, a photoprotective secondary product of the lichen Xanthoria parietina». Oecologia 108 (3): 412-418. doi:10.1007/BF00333715. 


Enlaces externos



Popular posts from this blog

Is compression “encryption” under FCC regs?Signing of messages transmitted over ham radioWhy do Amateur Radio organizations in the United States oppose the relaxation of encryption prohibitions?How far from earth do FCC regulations apply?How can I know whether a radio is FCC approved?FCC tracking of unlicensed FRS/GMRS transmissionsWhy does the FCC put restrictions on symbol rates?legal - Do FCC regulations only apply in U.S.A?What are FCC/Industry Canada certification requirements for amateur radio related products?How to get professional or official clarification of FCC Part 97 rules for specific complicated situations?Is there any point to keep the CSCE after the FCC registers the upgrade?Do FCC regulations limit digital data rate?

macOS: Name for app shortcut screen found by pinching with thumb and three fingers Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30UTC (7:30pm US/Eastern) Should an RSS feed of hot network questions feed any chat room(s) here?How do I get three finger gestures working again in Twitter for Mac after installing Lion?After my MacBook Pro sleeps some gestures don't work anymoreIs it possible to reassign the “Pinch with thumb and three fingers” gesture to activate Dashboard instead of Launchpad?Disable animation for “Swipe between full-screen apps”?OSX Yosemite Can't disable four-finger swipeDrag with three fingers missing in OS X 10.11 Beta “El Capitan” (15A215h)A shortcut for Merge all Windows on macOS SierraSet the hostname/computer name for macOSmacOS: Identify tool and keyboard shortcutQuickly save Screenshot in MacOS Mojave with keyboard Shortcut

What's wrong with this bogus proof?What's wrong with this random variable proof?What's wrong with this proof that all UFDs are Bezout?What's wrong with this proof by contradiction?A bogus proof of countable power setWhat's wrong with this proof $1=i^2=-1$What is wrong with this proofWhat's wrong with this proof of symmetry of equality?What's wrong with this 1 = -1 proof?What's wrong with this proof? (Regular languages)What's wrong in this proof of 1=2?