Definition of purpurin in English:
purpurin
noun
ChemistryA red dye originally extracted from madder and also prepared artificially by the oxidation of alizarin.
An anthraquinone derivative; chemical formula: C₁₄H₈O₅
‘Alizarin is the main colourant molecule, but the extract also contains a closely related compound called purpurin, which (despite the name) imparts an orange colour.’- ‘Additionally, monascus pigments, purpurin, chlorophyllin and curcumin were reported to inhibit the mutagenicity of heterocyclic amines and other carcinogens.’
- ‘In general, these newer drugs have been based on the structure of chlorin, purpurin, phthalocyanine or naphthalocyanine.’
- ‘However, the addition of purpurin to oxidized cytochrome c in the absence of microsomal fraction demonstrated low level but dose-dependent ‘reductase-like’ activity.’
Pronunciation
Origin
Mid 16th century (denoting powdered brass or bronze mixed with liquid and used as a coloring material): from Latin purpura ‘purple’+ -in, after French purpurine.
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