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8,5′-Diferulic acid
Names
	Preferred IUPAC name (2E)-2-{5-[(E)-2-Carboxyethen-1-yl]-2-hydroxy-3-methoxyphenyl}-3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid
	Other names 8,5′-DiFA; Ferulic acid 8-5-dehydrodimer; 8,5′-diFA (open form); 8,5-DiFA; 5-8′-Dehydrodiferulic acid
Identifiers
CAS Number	180579-78-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:88363 ;
ChemSpider	8560889;
PubChem CID	10385447;
CompTox Dashboard (EPA)	DTXSID201045390 ;
	InChI InChI=1S/C20H18O8/c1-27-16-9-11(3-5-15(16)21)8-14(20(25)26)13-7-12(4-6-18(22)23)10-17(28-2)19(13)24/h3-10,21,24H,1-2H3,(H,22,23)(H,25,26)/b6-4+,14-8+ Key: DEPVSDIYICBTJE-SITOFEAGSA-N; InChI=1/C20H18O8/c1-27-16-9-11(3-5-15(16)21)8-14(20(25)26)13-7-12(4-6-18(22)23)10-17(28-2)19(13)24/h3-10,21,24H,1-2H3,(H,22,23)(H,25,26)/b6-4+,14-8+ Key: DEPVSDIYICBTJE-SITOFEAGBF;
	SMILES O=C(O)\C=C\c1cc(OC)c(O)c(c1)/C(=C\c2ccc(O)c(OC)c2)C(=O)O;
Properties
Chemical formula	C20H18O8
Molar mass	386.356 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

8,5′-Diferulic acid is a non cyclic type of diferulic acid. It is the predominant diferulic acid in sugar beet pulp.^[2] It is also found in barley,^[3] in maize bran^[4] and rye.^[5] 8,5′-Diferulic acid has also been identified to be covalently linked to carbohydrate moieties of the arabinogalactan-protein fraction of gum arabic.^[6]

References

^ "8,5'-Diferulic acid | Chemical Substance Information | J-GLOBAL". jglobal.jst.go.jp.
^ Micard, V.; Grabber, J.H.; Ralph, J.; Renard, C.M.G.C.; Thibault, J.-F. (1997). "Dehydrodiferulic acids from sugar-beet pulp". Phytochemistry. 44 (7): 1365–1368. Bibcode:1997PChem..44.1365M. doi:10.1016/S0031-9422(96)00699-1.
^ Hernanz, D; Nuñez, V; Sancho, AI; Faulds, CB; Williamson, G; Bartolomé, B; Gómez-Cordovés, C (2001). "Hydroxycinnamic acids and ferulic acid dehydrodimers in barley and processed barley". Journal of Agricultural and Food Chemistry. 49 (10): 4884–8. Bibcode:2001JAFC...49.4884H. doi:10.1021/jf010530u. PMID 11600039.
^ Bunzel, M; Funk, C; Steinhart, H (2004). "Semipreparative isolation of dehydrodiferulic and dehydrotriferulic acids as standard substances from maize bran". Journal of Separation Science. 27 (13): 1080–6. doi:10.1002/jssc.200301703. PMID 15495409.
^ Andreasen, MF; Christensen, LP; Meyer, AS; Hansen, A (2000). "Content of phenolic acids and ferulic acid dehydrodimers in 17 rye (Secale cereale L.) varieties". Journal of Agricultural and Food Chemistry. 48 (7): 2837–42. Bibcode:2000JAFC...48.2837A. doi:10.1021/jf991266w. PMID 11032481.
^ Renard, D; Lavenant-Gourgeon, L; Ralet, MC; Sanchez, C (2006). "Acacia senegal gum: Continuum of molecular species differing by their protein to sugar ratio, molecular weight, and charges". Biomacromolecules. 7 (9): 2637–49. doi:10.1021/bm060145j. PMID 16961328.