Parietin
From Self-sufficiency
| Parietin | |
|---|---|
| File:Parietin.svg | |
| 1,8-dihydroxy-6-methoxy-3-methyl-anthracene-9,10-dione | |
| 1,8-dihydroxy-3-methoxy-6-methylanthraquinone | |
| Other names Physcion(e), rheochrysidin, methoxyemodin | |
| style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers | |
| CAS number | 521-61-9 |
| PubChem | 10639 |
| SMILES | Script error: No such module "collapsible list". |
| InChI | Script error: No such module "collapsible list". |
| style="background: #F8EABA; text-align: center;" colspan="2" | Properties | |
| Molecular formula | C16H12O5 |
| Molar mass | 284.26348 g/mol |
| Appearance | Orange/yellow |
| style="background: #F8EABA; text-align: center;" colspan="2" | Related compounds | |
| Related compounds | Emodin |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Parietin is the predominant cortical pigment of lichens in the genus Caloplaca, a secondary product of the lichen Xanthoria parietina, and a pigment found in the roots of Curled Dock (Rumex crispus). It has an orangy-yellow color and absorbs blue light.
It reacts with KOH to form a deep, reddish-magenta compound.
It has also shown anti-fungal activity against barley powdery mildew and cucumber powdery mildew, more efficiently in the latter case than treatments with fenarimol and polyoxin B.
References
- Caloplaca coralloides chemistry
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