purpurin


pur·pu·rin

noun \ˈpər-pyə-rən\

Definition of PURPURIN

1
: an orange or red crystalline compound C14H8O5 obtained from madder root along with alizarin or by oxidation of alizarin and used in dyeing
2
also pur·pu·rine \-rən, -ˌrēn\ : any of various colored compounds obtained from chlorophyll or related compounds by the action of cold alcoholic alkali and oxygen

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