| δ-Viniferin is a resveratrol dehydrodimer. It is an isomer of epsilon-viniferin. It can be isolated from stressed grapevine (Vitis vinifera) leaves. It is also found in plant cell cultures and wine. It can also be found in Rheum maximowiczii.
It is a grapevine phytoalexin following stresses like fungal infection (by Plasmopara viticola, the agent of downy mildew), UV light irradiation or ozone treatment.
Botryosphaeria obtusa, a pathogen responsible for the black dead arm disease of grapevine, has also been shown to be able to oxidise wood δ-resveratrol into delta-viniferin.
In cell cultures, the use of methyl jasmonate and jasmonic acid as elicitors stimulates δ-viniferin biosynthesis.
Delta-viniferin can also be produced from resveratrol by human PTGS1 (COX-1, cyclooxygenase-1) or from trans-resveratrol and (−)-epsilon-viniferin by horseradish peroxidase.
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InChI=1S/C21H18O5S/c1- 13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26-21/h3-12,22-23H,1-2H3 |
| OBRMNDMBJQTZHV-UHFFFAOYSA-N |
| Cc1cc(ccc1O)C1(OS(=O)(=O)c2ccccc12)c1ccc(O)c(C)c1 |
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acid-base indicator
An acid or base which exhibits a colour change on neutralization by the basic or acidic titrant at or near the equivalence point of a titration.
dye
two-colour indicator
A colour indicator that possesses a different colour on each side of the transition interval.
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View more via ChEBI Ontology
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3,3-bis(4-hydroxy-5-methylphenyl)-2,1λ6-benzoxathiole-1,1(3H)-dione
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3',3''-Dimethylphenolsulfonephthalein
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ChemIDplus
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Cresolsulfophthalein
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ChemIDplus
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NSC 7224
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ChemIDplus
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o-Cresol Red
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ChemIDplus
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o-Cresolsulfonephthalein
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ChemIDplus
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1733-12-6
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CAS Registry Number
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ChemIDplus
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343399
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Reaxys Registry Number
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Reaxys
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