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CHEBI:90299 - orcein
| ChEBI ID | CHEBI:90299 |
| ChEBI Name | orcein |
| Stars | |
| Definition | A variable mixture of several compounds isolated from lichens, the eight most abundant being α-aminoorcein, α-hydroxyorcein, β-aminoorcein, γ-aminoorcein, β-hydroxyorcein, γ-hydroxyorcein, β-aminoorceimine and β-aminoorceimine (all are phenoxazine-based). It is used for the demonstration of elastic fibres as well as to stain the rough endoplasmic reticulum of hepatitis B infected liver cells. |
| Last Modified | 11 November 2015 |
| Submitter | Steve |
| Wikipedia |
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| Roles Classification |
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| Biological Roles: | food colouring A food additive that imparts colour to food. In European countries, E-numbers for permitted food colours are from E 100 to E 199, divided into yellows (E 100-109), oranges (E 110-119), reds (E 120-129), blues and violets (E 130-139), greens (E 140-149), browns and blacks (E 150-159), and others (E 160-199). plant metabolite Any eukaryotic metabolite produced during a metabolic reaction in plants, the kingdom that include flowering plants, conifers and other gymnosperms. |
| Applications: | food colouring A food additive that imparts colour to food. In European countries, E-numbers for permitted food colours are from E 100 to E 199, divided into yellows (E 100-109), oranges (E 110-119), reds (E 120-129), blues and violets (E 130-139), greens (E 140-149), browns and blacks (E 150-159), and others (E 160-199). histological dye A dye used in microscopic or electron microscopic examination of cells and tissues to give contrast and to highlight particular features of interest, such as nuclei and cytoplasm. |
| ChEBI Ontology |
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| Outgoing Relation(s) |
| orcein (CHEBI:90299) has part α-aminoorcein (CHEBI:90306) |
| orcein (CHEBI:90299) has part α-hydroxyorcein (CHEBI:90308) |
| orcein (CHEBI:90299) has part β-aminoorceimine (CHEBI:90314) |
| orcein (CHEBI:90299) has part β-aminoorcein (CHEBI:90311) |
| orcein (CHEBI:90299) has part β-hydroxyorcein (CHEBI:90309) |
| orcein (CHEBI:90299) has part γ-aminoorceimine (CHEBI:90316) |
| orcein (CHEBI:90299) has part γ-aminoorcein (CHEBI:90312) |
| orcein (CHEBI:90299) has part γ-hydroxyorcein (CHEBI:90313) |
| orcein (CHEBI:90299) has role food colouring (CHEBI:77182) |
| orcein (CHEBI:90299) has role histological dye (CHEBI:77178) |
| orcein (CHEBI:90299) has role plant metabolite (CHEBI:76924) |
| orcein (CHEBI:90299) is a mixture (CHEBI:60004) |
| Synonym | Source |
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| C.I. Natural Red 28 | ChEBI |
| Manual Xrefs | Databases |
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| Orcein | Wikipedia |