Dihydroxycinnamic acid may refer to several molecules with the molecular formula C9H8O4 including:
- Caffeic acid (3,4-Dihydroxycinnamic acid), a hydroxycinammic acid
- Umbellic acid (2,4-dihydroxycinnamic acid), a hydroxycinammic acid
- 2,3-Dihydroxycinnamic acid, a hydroxycinammic acid
- 2,5-Dihydroxycinnamic acid, a hydroxycinammic acid
- 3,5-Dihydroxycinnamic acid, a hydroxycinammic acid
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| Aglycones | | Precursor | |
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Monohydroxycinnamic acids
(Coumaric acids) | |
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| Trihydroxycinnamic acids | |
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| O-methylated forms | |
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| others | |
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| Esters | | glycoside-likes | Esters of
caffeic acid
with cyclitols | |
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| Glycosides | |
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| Tartaric acid esters | |
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Other esters
with caffeic acid | |
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Caffeoyl phenylethanoid
glycoside (CPG) |
- Echinacoside
- Calceolarioside A, B, C, F
- Chiritoside A, B, C
- Cistanoside A, B, C, D, E, F, G, H
- Conandroside
- Myconoside
- Pauoifloside
- Plantainoside A
- Plantamajoside
- Tubuloside B
- Verbascoside (Isoverbascoside, 2′-Acetylverbascoside)
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| Oligomeric forms | | Dimers |
- Diferulic acids (DiFA) : 5,5′-Diferulic acid, 8-O-4′-Diferulic acid, 8,5′-Diferulic acid, 8,5′-DiFA (DC), 8,5′-DiFA (BF), 8,8′-Diferulic acid
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| Trimers | |
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| Tetramers | |
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Conjugates with
coenzyme A (CoA) | |
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