{{Chembox <!-- Images --> | ImageFile = Thamnolic acid.svg | ImageSize = 200px | ImageAlt = <!-- Names --> | IUPACName = 5-(3-carboxy-2-hydroxy-4-methoxy-6-methylbenzoyl)oxy-3-formyl-2,4-dihydroxy-6-methylbenzoic acid<ref name=Thamnolic-acid>{{cite journal |title=Thamnolic acid |journal=Pubchem.ncbi.NLM.nih.gov |url=https://pubchem.ncbi.nlm.nih.gov/compound/Thamnolic-acid#section=3D-Conformer |language=en}}</ref> | OtherNames = {{ubl }} <!-- Sections --> | Section1 = {{Chembox Identifiers | CASNo = 484-55-9 | CASNo_Ref = {{Cascite|correct|CAS}} | ChEBI = 144235 | ChEMBL = | ChemSpiderID = 3522039 | DTXSID = | EINECS = | PubChem = 4316933 | StdInChI=1S/C19H16O11/c1-6-4-9(29-3)12(18(26)27)15(23)10(6)19(28)30-16-7(2)11(17(24)25)13(21)8(5-20)14(16)22/h4-5,21-23H,1-3H3,(H,24,25)(H,26,27) | StdInChIKey = RNCJCRJLNVRWJX-UHFFFAOYSA-N | SMILES = CC1=CC(=C(C(=C1C(=O)OC2=C(C(=C(C(=C2C)C(=O)O)O)C=O)O)O)C(=O)O)OC }} | Section2 = {{Chembox Properties | C=19 | H=16 | O=11 | Appearance = | Density = | MeltingPt = | BoilingPt = | Solubility = }} | Section3 = {{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} }}

'''Thamnolic acid''' is a β-orcinol depside with the molecular formula C<sub>19</sub>H<sub>16</sub>O<sub>11</sub>.<ref>{{cite book |title=Zeitschrift Für Naturforschung |date=1967 |publisher=Dieterich'sche Verlagsbuchhandlung |page=780 |language=de}}</ref><ref>{{cite journal |last1=Elix |first1=J. A. |last2=Norfolk |first2=S. |title=Synthesis of β-orcinol meta-depsides |journal=Australian Journal of Chemistry |date=1975 |volume=28 |issue=9 |pages=2035–2041 |doi=10.1071/ch9752035 |language=en |issn=1445-0038}}</ref><ref name=Thamnolic-acid/><ref>{{cite book |title=Bibliotheca lichenologica |date=1973 |publisher=J. Cramer |isbn=978-3-443-58037-7 |page=36 |language=de}}</ref> Thamnolic acid was first isolated from the lichen ''Thamnolia vermicularis'', but it also occur in ''Cladonia'' species.<ref>{{cite book |title=Der Stoffwechsel Sekundärer Pflanzenstoffe / The Metabolism of Secondary Plant Products |date=11 November 2013 |publisher=Springer Science & Business Media |isbn=978-3-662-26784-4 |page=583 |language=en}}</ref><ref>{{cite book |last1=Brodo |first1=Irwin M. |last2=Sharnoff |first2=Sylvia Duran |last3=Sharnoff |first3=Stephen |last4=Nature |first4=Canadian Museum of |title=Lichens of North America |date=1 January 2001 |publisher=Yale University Press |isbn=978-0-300-08249-4 |page=259 |language=en}}</ref>

== References == {{reflist}}

== Further reading == {{refbegin}} * {{cite book |last1=Linskens |first1=H. F. |last2=Tracey |first2=M. V. |last3=Beiss |first3=Ulrich |last4=Bendall |first4=Fay |last5=Björk |first5=Walter |last6=Bohlmann |first6=F. |last7=Boman |first7=Hans G. |last8=Braun |first8=Richard |last9=Heinen |first9=W. |last10=Hesse |first10=Manfred |last11=Hofmann |first11=Eduard |last12=Hudson |first12=J. R. |last13=Knapp |first13=Rüdiger |last14=Lambert |first14=Rudolf |last15=Miller |first15=Carlos O. |last16=Pfleiderer |first16=Gerhard |last17=Sanwal |first17=B. D. |last18=Schmid |first18=Hans |last19=Shibata |first19=Shoji |last20=Stern |first20=Herbert |last21=Sucrow |first21=Wolfgang |last22=Tobiška |first22=Josef |last23=Zilliken |first23=F. W. |title=Modern Methods of Plant Analysis / Moderne Methoden der Pflanzenanalyse |date=13 March 2013 |publisher=Springer-Verlag |isbn=978-3-642-94878-7 |page=184 |language=en}} * {{cite journal |last1=Millot |first1=M |last2=Girardot |first2=M |last3=Dutreix |first3=L |last4=Imbert |first4=C |last5=Mambu |first5=L |title=Lichen biodiversity: A source of secondary metabolites active against Candida biofilms |journal=Planta Medica |date=30 October 2014 |volume=80 |issue=16 |pages=s–0034–1394614 |doi=10.1055/s-0034-1394614}} * {{cite journal |last1=Asahina |first1=Yasuhiko |last2=Hiraiwa |first2=Mitio |title=Untersuchungen über Flechtenstoffe, LXIV. Mitteil.: Über die Konstitution der Thamnolsäure (IV. Mitteil.) |journal=Berichte der Deutschen Chemischen Gesellschaft (A and B Series) |date=5 February 1936 |volume=69 |issue=2 |pages=330–333 |doi=10.1002/cber.19360690220}} {{refend}}

Category:Lichen products Category:Polyphenols Category:Carboxylic acids Category:Methoxy compounds Category:Depsides

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